diff --git a/help/publicapi.html b/help/publicapi.html
index b73d4502..7d3bc3bf 100644
--- a/help/publicapi.html
+++ b/help/publicapi.html
@@ -3492,24 +3492,24 @@ <h5 id="JS9.NewShapeLayer">Create a new shape layer</h5>
 group (which is done using the <b>Command</b> key on a Mac,
 or <b>Control</b> key everywhere else):
 <ul>
-<li><b>ongroupcreate</b>: function(im, xregs, evt);
+<li><b>ongroupcreate</b>: function(im, xreg, evt);
 </ul>
 The function will be called with the following arguments:
 <ul>
 <li> <b>im</b>: the image handle for the currently displayed image
-<li> <b>xregs</b>: an array of shape objects within the group
+<li> <b>xreg</b>: an array of shape objects within the group
 <li> <b>evt</b>: the original event object
 </ul>
 Note that an array of xreg objects is passed in this case instead of
 the single "current" object passed in the other event callbacks.
 For example:
 <pre>
-    opts.ongroupcreate = function(im, xregs, evt){
+    opts.ongroupcreate = function(im, xreg, evt){
         var i, nshape, xcen, ycen;
         var xtot=0, ytot=0;
-        nshape = xregs.length;
+        nshape = xreg.length;
         for(i=0; i&lt;nshape; i++){
-          xtot += xregs[i].x; ytot += xregs[i].y;
+          xtot += xreg[i].x; ytot += xreg[i].y;
         }
         xcen = xtot / nshape; ycen = ytot / nshape;
         console.log("average pos for %s objects: %s,%s", nshape, xcen, ycen);
@@ -3536,6 +3536,7 @@ <h5 id="JS9.NewShapeLayer">Create a new shape layer</h5>
 generated tooltip will display current image id in bold, followed by
 that object's x,y pixel position, followed by a user <b>tag</b>
 property passed in the <b>data</b> object when the shape was added.
+As a convenience, <b>$data</b> can be used as a shorthand for <b>$xreg.data</b>.
 
 <h5 id="JS9.ShowShapeLayer">Show or hide the specified shape layer</h5>
 <p>
diff --git a/js9-allinone.js b/js9-allinone.js
index bda43863..d61827cf 100644
--- a/js9-allinone.js
+++ b/js9-allinone.js
@@ -4310,113 +4310,113 @@ corsURL:"params/loadcors.html",proxyURL:"params/loadproxy.html",loadProxy:!1,ims
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 l:"toggle active shape layers","M-l":"new JS9 light window",m:"pan to mouse position","M-m":"toggle mouse/touch plugin","M-o":"open local file",P:"paste regions from local clipboard",p:"paste regions to current position",u:"undo remove of region(s)","M-,":"toggle preferences plugin","M-p":"toggle preferences plugin",r:"copy selected region to clipboard",R:"copy all regions to clipboard",s:"select region",S:"select all regions","M-s":"toggle shape layers plugin",x:"flip image around x axis",y:"flip image around y axis",
 9:"rotate image by 90 degrees","/":"copy wcs position to clipboard","?":"copy value and position to clipboard",0:"reset zoom","=":"zoom in","+":"zoom in","-":"zoom out","^":"raise region layer to top",">":"display next image","<":"display previous image","delete":"remove selected region",leftArrow:"move region/position left",upArrow:"move region/position up",rightArrow:"move region/position right",downArrow:"move region/position down"},mousetouchZoom:!1,metaClickPan:!0,toolbarTooltips:!1,centerDivs:["JS9Menubar"],
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-this.lcs.physical.reverse?g&&(this.lcs.physical.frot=$.extend(!0,[],g),this.lcs.physical.rrot=$.extend(!0,[],f),this.lcs.physical.cx=d-b[2][0]-1,this.lcs.physical.cy=e-b[2][1]-1):delete this.lcs.physical;b[0][0]=a.defNull(c.DTM1_1,1);b[1][0]=c.DTM2_1||0;b[0][1]=c.DTM1_2||0;b[1][1]=a.defNull(c.DTM2_2,1);b[2][0]=c.DTV1||0;b[2][1]=c.DTV2||0;this.lcs.detector={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.detector.reverse?g&&(this.lcs.detector.frot=$.extend(!0,[],g),this.lcs.detector.rrot=
-$.extend(!0,[],f),this.lcs.detector.cx=d-b[2][0]-1,this.lcs.detector.cy=e-b[2][1]-1):delete this.lcs.detector;b[0][0]=a.defNull(c.ATM1_1,1);b[1][0]=c.ATM2_1||0;b[0][1]=c.ATM1_2||0;b[1][1]=a.defNull(c.ATM2_2,1);b[2][0]=c.ATV1||0;b[2][1]=c.ATV2||0;this.lcs.amplifier={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.amplifier.reverse?g&&(this.lcs.amplifier.frot=$.extend(!0,[],g),this.lcs.amplifier.rrot=$.extend(!0,[],f),this.lcs.amplifier.cx=d-b[2][0]-1,this.lcs.amplifier.cy=e-b[2][1]-
-1):delete this.lcs.amplifier;this.params&&!this.lcs[this.params.lcs]&&(this.params.lcs="image");this.params&&!this.params.wcssys0&&(this.setWCSSys("physical"),this.params.wcssys0=this.params.lcs);this.lcs.physical&&!this.lcs.ophysical&&(this.lcs.ophysical=$.extend(!0,{},this.lcs.physical));return this};a.Image.prototype.mkRawDataFromIMG=function(c){var b,d;if(c){var e=c.height;var g=c.width;var f=c.data;this.raws.push({from:"img"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;this.raw.data=
-new Float32Array(e*g);for(d=c=0;d<e;d++)for(b=0;b<g;b++){var h=.299*f[c]+.587*f[c+1]+.114*f[c+2];this.raw.data[(e-d)*g+b]=h;c+=4}this.raw.width=g;this.raw.height=e;this.raw.bitpix=-32;this.dataminmax();this.source="png";this.raw.header={SIMPLE:!0,NAXIS:2,NAXIS1:this.raw.width,NAXIS2:this.raw.height,BITPIX:this.raw.bitpix};this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");return this}};a.Image.prototype.mkRawDataFromPNG=function(){var c,b,d;var e=b=0;var g=[];var f=new ArrayBuffer(8);
-var h=new Uint8Array(f),k=new DataView(f);if(!this.offscreen.img)return this;this.raws.push({from:"png"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;var l=this.offscreen.img.data;for(c=f=0;f<l.length&&0!==l[f];f++)if(255!==l[f]&&(g[c]=String.fromCharCode(l[f]),c++),15===c&&'{"js9Protocol":'!==g.join("")){var m=!0;break}if(15>c||m)this.mkRawDataFromIMG(this.offscreen.img);else{c=g.join("");2<a.DEBUG&&a.log("jsonHeader: %s",c);try{var n=JSON.parse(c)}catch(p){a.error("can't read FITS header from PNG file: "+
-c,p)}if(1===n.js9Protocol)this.raw.header=n,this.raw.endian=this.raw.header.js9Endian,this.raw.protocol=this.raw.header.js9Protocol;else for(this.raw.endian=n.js9Endian,this.raw.protocol=n.js9Protocol,this.raw.cardstr=n.cardstr,this.raw.ncard=n.ncard,this.raw.header={},n=this.raw.ncard,c=0;c<n;c++)m=this.raw.cardstr.slice(80*c,80*(c+1)),m=a.cardpars(m),void 0!==m&&("HISTORY"===m[0]?this.raw.header[m[0]+"__"+b++]=m[1]:"COMMENT"===m[0]?this.raw.header[m[0]+"__"+e++]=m[1]:this.raw.header[m[0]]=m[1]);
-f+=1;this.raw.header.NAXIS1?this.raw.width=this.raw.header.NAXIS1:a.error("NAXIS1 missing from PNG-based FITS header");this.raw.header.NAXIS2?this.raw.height=this.raw.header.NAXIS2:a.error("NAXIS2 missing from PNG-based FITS header");this.raw.header.BITPIX?this.raw.bitpix=this.raw.header.BITPIX:a.error("BITPIX missing from PNG-based FITS header");"little"===this.raw.endian?d=!0:"big"===this.raw.endian?d=!1:a.error("js9Endian missing from PNG-based FITS header");this.object=this.raw.header.OBJECT;
-this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;b=this.raw.width*this.raw.height;e=f%4;switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(b);for(c=0;c<b;c++){switch(e){case 0:var q=l[f];f+=1;e=1;break;case 1:q=l[f];f+=1;e=2;break;case 2:q=l[f];f+=2;e=0;break;case 3:q=l[f+1],f+=2,e=1}this.raw.data[c]=q}break;case 16:case -16:16===this.raw.bitpix?(this.raw.data=new Int16Array(b),n=DataView.prototype.getInt16):(this.raw.data=new Uint16Array(b),n=DataView.prototype.getUint16);
-for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=2;e=2;break;case 1:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=3;e=0;break;case 2:h[0]=l[f];h[1]=l[f+2];q=n.call(k,0,d);f+=3;e=1;break;case 3:h[0]=l[f+1],h[1]=l[f+2],q=n.call(k,0,d),f+=3,e=2}this.raw.data[c]=q}break;case 32:case -32:32===this.raw.bitpix?(this.raw.data=new Int32Array(b),n=DataView.prototype.getInt32):(this.raw.data=new Float32Array(b),n=DataView.prototype.getFloat32);for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];
-h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=1;break;case 1:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=2;break;case 2:h[0]=l[f];h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=6;e=0;break;case 3:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],q=n.call(k,0,d),f+=6,e=1}this.raw.data[c]=q}break;case -64:this.raw.data=new Float64Array(b);for(c=0;c<b;c++){switch(e){case 0:case 4:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+6];h[6]=l[f+
-8];h[7]=l[f+9];q=k.getFloat64(0,d);f+=10;e=2;break;case 1:case 5:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+9];q=k.getFloat64(0,d);f+=11;e=0;break;case 2:case 6:h[0]=l[f];h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+6];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+10];q=k.getFloat64(0,d);f+=11;e=1;break;case 3:case 7:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],h[4]=l[f+6],h[5]=l[f+7],h[6]=l[f+9],h[7]=l[f+10],q=k.getFloat64(0,d),f+=11,e=2}this.raw.data[c]=q}break;
-default:a.error("unsupported bitpix in PNG file: "+this.raw.bitpix)}this.dataminmax();this.offscreen.img=null;this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");return this}};a.Image.prototype.mkRawDataFromHDU=function(c,b){var d=this,e,g,f,h;var k=h=0;b=b||{};if($.isArray(c)||a.isTypedArray(c)||c instanceof ArrayBuffer){$.isArray(c[0])&&(c=c.reduce(function(a,b){return a.concat(b)}));var l={image:c}}else"object"===typeof c?l=c:a.error("unknown or missing input for HDU creation");
-l.data&&!l.image&&(l.image=l.data);l.image||a.error("data missing from JS9 FITS object: "+JSON.stringify(l));2>l.naxis&&a.error("can't image a FITS file with less than 2 dimensions");if(this.raw){var m=this.raw;var n=this.raw.width;var q=this.raw.height;var p=this.raw.bitpix;var t=a.defNull(this.raw.header.LTM1_1,1);var r=this.params.wcssys;var u=this.params.wcsunits;this.freeWCS()}this.raws=this.raws||[];if(f=this.raws.length){b.rawid=b.rawid||a.RAWIDX;for(e=g=0;e<f;e++)if(b.rawid===this.raws[e].id){var v=
-this.raws[e].from;this.raws[e]={from:v,id:b.rawid};this.raw=this.raws[e];g++;break}g||(this.raws.push({from:"hdu",id:b.rawid}),this.raw=this.raws[f],m=null)}else this.raws.push({from:"hdu"}),this.raw=this.raws[f],this.raw.id=a.RAWID0;this.raw.hdu=l;l.axis?(this.raw.width=l.axis[1],this.raw.height=l.axis[2]):l.naxis1&&l.naxis2?(this.raw.width=l.naxis1,this.raw.height=l.naxis2):n&&q&&(this.raw.width=n,this.raw.height=q);l.bitpix?this.raw.bitpix=l.bitpix:p&&(this.raw.bitpix=p);if("base64"===l.encoding)for(v=
-window.atob(l.image),l.image=new ArrayBuffer(v.length),g=new Uint8Array(l.image),e=0;e<v.length;e++)g[e]=v.charCodeAt(e);$.isArray(l.image[0])&&(l.image=l.image.reduce(function(a,b){return a.concat(b)}));switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(l.image);break;case 16:this.raw.data=new Int16Array(l.image);break;case -16:this.raw.data=new Uint16Array(l.image);break;case 32:this.raw.data=new Int32Array(l.image);break;case -32:this.raw.data=new Float32Array(l.image);break;case -64:this.raw.data=
-new Float64Array(l.image)}this.raw.card=l.card;this.raw.cardstr=l.cardstr;this.raw.ncard=l.ncard;if(l.head)this.raw.header=l.head;else if(this.raw.card)for(this.raw.header={},g=this.raw.card.length,e=0;e<g;e++)f=a.cardpars(this.raw.card[e]),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else if(this.raw.cardstr)for(this.raw.header={},g=this.raw.ncard,e=0;e<g;e++)f=this.raw.cardstr.slice(80*e,80*(e+
-1)),f=a.cardpars(f),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else this.raw.header={},this.raw.header.SIMPLE=!0,this.raw.header.NAXIS=2,this.raw.header.NAXIS1=this.raw.width,this.raw.header.NAXIS2=this.raw.height,this.raw.header.BITPIX=this.raw.bitpix;e=this.raw.header;m||this.parentFile||this.parent||void 0===e.LTV1&&void 0===e.LTV2&&void 0===e.LTM1_1&&void 0===e.LTM2_2||(this.parent={},this.parent.raw=
-{header:$.extend(!0,{},e)},this.parent.lcs={},a.Image.prototype.initLCS.call(this.parent,this.parent.raw.header));if("image"===l.imtab&&void 0!==l.x1&&1!==l.x1||void 0!==l.y1&&1!==l.y1||void 0===l.bin||1!==l.bin)g=l.bin||1,h=void 0!==l.x1?l.x1:0,k=void 0!==l.y1?l.y1:0,void 0!==e.NAXIS1&&(e.NAXIS1/=g),void 0!==e.NAXIS2&&(e.NAXIS2/=g),void 0!==e.CRPIX1&&(e.CRPIX1=(e.CRPIX1-h)/g+.5),void 0!==e.CRPIX2&&(e.CRPIX2=(e.CRPIX2-k)/g+.5),void 0!==e.CDELT1&&(e.CDELT1*=g),void 0!==e.CDELT2&&(e.CDELT2*=g),void 0!==
-e.CD1_1&&(e.CD1_1*=g),void 0!==e.CD1_2&&(e.CD1_2*=g),void 0!==e.CD2_1&&(e.CD2_1*=g),void 0!==e.CD2_2&&(e.CD2_2*=g),e.LTM1_1=a.defNull(e.LTM1_1,1),e.LTM1_1/=g,e.LTM2_1=e.LTM2_1||0,e.LTM2_1/=g,e.LTM1_2=e.LTM1_2||0,e.LTM1_2/=g,e.LTM2_2=a.defNull(e.LTM2_2,1),e.LTM2_2/=g,e.LTV1=e.LTV1||0,e.LTV1=(e.LTV1-h)/g+.5,e.LTV2=e.LTV2||0,e.LTV2=(e.LTV2-k)/g+.5;b.lcsUseRota2&&(e.LCSROTA2=!0);b.file&&b.file!==this.file?(this.file=b.file,this.id=null):b.filename&&b.filename!==this.file?(this.file=b.filename,this.id=
-null):l.filename&&l.filename!==this.file&&(this.file=l.filename,this.id=null);this.file0=this.file=this.file||a.ANON+a.uniqueID();b.id&&(this.id0=b.id,this.id=a.getImageID(b.id,this.display.id,this));this.id||!this.file||this.file.match(/\[.*[^a-zA-Z0-9_].*\]/)||(b.extname||b.extnum?(b.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extname+"]"):b.extnum&&0<b.extnum&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extnum+"]"),l&&l.fits&&(b.extname&&(l.fits.extname=b.extname),
-b.extnum&&0<b.extnum&&(l.fits.extnum=b.extnum))):l.fits?l.fits.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+l.fits.extname+"]"):l.fits.extnum&&0<l.fits.extnum&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+l.fits.extnum+"]"):this.raw.header&&this.raw.header.EXTNAME&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+this.raw.header.EXTNAME+"]"));this.id||(this.id0=(this.parentFile||this.file).split("/").reverse()[0],this.id=a.getImageID(this.id0,this.display.id,
-this));b.proxyFile&&(this.proxyFile=b.proxyFile);this.raw.filter=b.filter||"";this.imtab=l.imtab?l.imtab:l.table?"table":"image";this.raw.imtab=this.imtab;void 0!==l.dmin&&void 0!==l.dmax?this.dataminmax(l.dmin,l.dmax):this.dataminmax();this.object=this.raw.header.OBJECT;this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;this.binning.bin="table"===this.imtab&&l.table?l.table.bin||1:l.bin?l.bin:1;b.ltm2obin&&e.LTM1_1?this.binning.obin=e.LTM1_1/t:m||(this.binning.obin=
-this.binning.bin);this.initWCS();r&&this.setWCSSys(r);u&&this.setWCSUnits(u);this.initLCS();try{if(b.hdus)this.hdus=b.hdus;else if(this.parentFile&&a.helper.connected&&a.helper.js9helper)c={id:this.expandMacro("$id"),cmd:this.expandMacro("js9Xeq listhdus $filename"),image:this.file,fits:this.parentFile,rtype:"text"},a.helper.send("listhdus",c,function(a){if(!a.stderr&&!a.errcode&&a.stdout)try{d.hdus=JSON.parse(a.stdout)}catch(w){d.hdus=null}});else if(this.raw&&this.raw.hdu&&this.raw.hdu.fits&&(v=
-a.listhdu(this.raw.hdu.fits.vfile)))try{this.hdus=JSON.parse(v)}catch(y){this.hdus=null}}catch(y){}if(this.raw.hdu.fits&&this.raw.hdu.fits.vfile){v=a.globalOpts.clearImageMemory;v=!1===v?["never"]:!0===v?["always"]:v.toLowerCase().split(/[,>]/);m=c=!1;e=0;for(b=!1;e<v.length&&!b;e++)switch(v[e]){case "never":c=!1;b=!0;break;case "always":b=c=!0;break;case "heap":m=!0;break;case "auto":2>=this.raw.header.NAXIS&&(!this.hdus||1===this.hdus.length)?c=!0:(c=!1,b=!0);break;case "nocube":2>=this.raw.header.NAXIS?
-c=!0:(c=!1,b=!0);break;case "noext":this.hdus&&1!==this.hdus.length?(c=!1,b=!0):c=!0;break;case "size":v[e+1]?a.vsize(l.fits.vfile)>1E6*v[e+1]?c=!0:(c=!1,b=!0):(c=!1,b=!0)}c?(2<a.DEBUG&&a.log("removing underlying FITS vfile for %s: %s",this.id,this.raw.hdu.fits.vfile),a.cleanupFITSFile(this.raw,!0)):m&&(2<a.DEBUG&&a.log("freeing heap space for %s: %s",this.id,this.raw.hdu.fits.vfile),a.cleanupFITSFile(this.raw,!1))}this.xeqPlugins("image","onrawdata");return this};a.Image.prototype.mkSection=function(c){for(var b=
-[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];d=this.rgb.sect;d.ozoom=d.zoom;switch(b.length){case 0:d.xcen=Math.floor(this.raw.width/2);d.ycen=Math.floor(this.raw.height/2);d.width=Math.min(this.raw.width,this.display.canvas.width);d.height=Math.min(this.raw.height,this.display.canvas.height);break;case 1:a.isNumber(b[0])||a.error("invalid input for generating section: "+b[0]);d.zoom=parseFloat(b[0]);d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width);d.height=Math.min(this.raw.height*
-d.zoom,this.display.canvas.height);break;case 2:a.isNumber(b[0])&&a.isNumber(b[1])||a.error("invalid input for generating section: "+b[0]+" "+b[1]);d.xcen=parseFloat(b[0]);d.ycen=parseFloat(b[1]);a.notNull(d.ix)&&(d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width));a.notNull(d.iy)&&(d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height));break;case 3:a.isNumber(b[0])&&a.isNumber(b[1])&&a.isNumber(b[2])||a.error("invalid input for generating section: "+b[0]+" "+b[1]+" "+
-b[2]),d.xcen=parseFloat(b[0]),d.ycen=parseFloat(b[1]),d.zoom=parseFloat(b[2]),d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width),d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height)}delete d.ix;delete d.iy;d.x0=d.xcen-d.width/(2*d.zoom);d.y0=d.ycen-d.height/(2*d.zoom);d.x1=d.xcen+d.width/(2*d.zoom);d.y1=d.ycen+d.height/(2*d.zoom);0>d.x0&&(a.globalOpts.panWithinDisplay?d.x1-=d.x0:d.ix=d.x0*d.zoom,d.x0=0);0>d.y0&&(a.globalOpts.panWithinDisplay?d.y1-=d.y0:d.iy=d.y0*d.zoom,
-d.y0=0);d.x1>this.raw.width&&(a.globalOpts.panWithinDisplay?d.x0-=d.x1-this.raw.width:d.ix=(d.x1-this.raw.width)*d.zoom,d.x1=this.raw.width);d.y1>this.raw.height&&(a.globalOpts.panWithinDisplay?d.y0-=d.y1-this.raw.height:d.iy=(d.y1-this.raw.height)*d.zoom,d.y1=this.raw.height);0<d.ix&&0<d.x0&&(b=Math.min(d.ix,d.x0),d.x0-=b,d.ix+=b*d.zoom);0>d.ix&&d.x1<this.raw.width&&(b=Math.min(this.raw.width-d.x1,Math.abs(d.ix)),d.x1+=b,d.ix-=b*d.zoom);0<d.iy&&0<d.y0&&(b=Math.min(d.iy,d.y0),d.y0-=b,d.iy+=b*d.zoom);
-0>d.iy&&d.y1<this.raw.height&&(b=Math.min(this.raw.height-d.y1,Math.abs(d.iy)),d.y1+=b,d.iy-=b*d.zoom);d.x0=Math.max(0,d.x0);d.x1=Math.min(this.raw.width,d.x1);d.y0=Math.max(0,d.y0);d.y1=Math.min(this.raw.height,d.y1);d.x0=Math.floor(d.x0);d.y0=Math.floor(d.y0);d.x1=Math.floor(d.x1);d.y1=Math.floor(d.y1);d.width=Math.ceil((d.x1-d.x0)*d.zoom);d.height=Math.ceil((d.y1-d.y0)*d.zoom);if(0>=d.width||0>=d.height)b=sprintf("invalid image section: %s,%s [%s,%s, %s,%s, %s]",d.width,d.height,d.x0,d.y0,d.x1,
-d.y1,d.zoom),a.error(b);this.offscreenRGB=null;this.params.zoom=d.zoom;return this};a.Image.prototype.mkColorData=function(){var c,b=a.SCALESIZE,d=this.params.scalemin,e=this.params.scalemax,g=this.raw.width*this.raw.height,f=(b-1)/(e-d);if(!this.colorData||this.colorData.length<g)this.colorData=new Int32Array(g);for(c=0;c<g;c++){var h=this.raw.data[c];this.colorData[c]=h<=d?0:h>=e?b-1:Math.floor((h-d)*f+.5)}return this};a.Image.prototype.calcContrastBias=function(c){var b=this.params.bias,d=a.COLORSIZE,
-e=this.params.contrast;if(1E-4>b-.5&&1E-4>e-1)return c;this.params.invert&&(b=1-b);c=Math.floor(((c/d-b)*e+.5)*d);return 0>c?0:c>=d?d-1:c};a.Image.prototype.mkColorCells=function(){var c,b=a.COLORSIZE;this.colorCells||(this.colorCells=[]);for(c=0;c<b;c++){var d=this.params.invert?b-c-1:c;d=this.calcContrastBias(d);this.colorCells[c]=this.cmapObj.mkColorCell(d)}return this};a.Image.prototype.mkScaledCells=function(){var c,b;var d=a.COLORSIZE;var e=a.SCALESIZE,g=a.INVSIZE;var f=a.HISTSIZE;if(!this.colorCells)return this;
-if(!this.psColors){var h=this.psColors=[];var k=this.params.nancolor;var l=[];"#"===k.charAt(0)&&(k=k.slice(1));k=k.toUpperCase();for(c=b=0;6>b;b+=2,c++){var m="0123456789ABCDEF".indexOf(k.charAt(b));var n="0123456789ABCDEF".indexOf(k.charAt(b+1));l[c]=16*m+n}h[NaN]=l}this.psInverse||(this.psInverse=[],this.psInverse[NaN]=0);k=this.params.scalemax-this.params.scalemin;b=this.params.scalemin;switch(this.params.scale){case "linear":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];
-for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*k+b;break;case "log":f=this.params.exp;for(h=0;h<e;h++)c=Math.log(f*h/e+1)/Math.log(f),c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=(Math.pow(f,h/g)-1)/f,this.psInverse[h]=c*k+b;break;case "power":f=this.params.exp;for(h=0;h<e;h++)c=(Math.pow(f,h/e)-1)/f,c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=Math.log(f*h/g+1)/Math.log(f),this.psInverse[h]=c*k+b;break;case "sqrt":for(h=
-0;h<e;h++)c=h/e,c=Math.floor(Math.sqrt(c)*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*c*k+b;break;case "squared":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=Math.sqrt(h/g),this.psInverse[h]=c*k+b;break;case "asinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.asinh(10*c)/3*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.sinh(3*c)/10,this.psInverse[h]=c*
-k+b;break;case "sinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.sinh(3*c)/10*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.asinh(10*c)/3,this.psInverse[h]=c*k+b;break;case "histeq":l=this.raw.data;var q=this.raw.width*this.raw.height;k=this.raw.dmax-this.raw.dmin;var p=this.raw.dmax;b=this.raw.dmin;var t=c=0;m=[];if(!this.hist||!this.hist.length){this.hist=[];for(h=0;h<f;h++)m[h]=0;for(h=0;h<q;h++)l[h]>=b&&l[h]<=p&&(n=Math.floor((l[h]-b)/k*f+.5),n<f&&(m[n]+=1));for(h=
-0;h<f;h++)t+=m[h];n=t/f;for(h=l=0;h<f&&l<f;h++)for(this.hist[h]=l/f,c+=m[h];c>=n&&l<f;)c-=n,l++;for(c=(f-1)/f;h<f;)this.hist[h++]=c}for(h=0;h<e;h++)c=this.hist[h*f/e],c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++){d=h/g;for(n=0;n<f-1&&!(this.hist[n]>d);n++);c=n/f;this.psInverse[h]=c*k+b}break;default:a.error("unknown scale '"+this.params.scale+"'")}return this};a.Image.prototype.mkRGBImage=function(){var c,b,d,e,g=null,f=null,h=null,k=!1;if(!this.rgb)return this;!a.globalOpts.rgb.active||
-this!==a.globalOpts.rgb.rim&&this!==a.globalOpts.rgb.gim&&this!==a.globalOpts.rgb.bim||(k=!0,a.globalOpts.rgb.rim&&(g=a.globalOpts.rgb.rim),a.globalOpts.rgb.gim&&(f=a.globalOpts.rgb.gim),a.globalOpts.rgb.bim&&(h=a.globalOpts.rgb.bim));var l=this.display.context;var m=this.rgb;var n=m.sect;if(this.MakeRGBImage&&"function"===typeof this.MakeRGBImage&&this.MakeRGBImage()||this.MakePrimaryImage&&"function"===typeof this.MakePrimaryImage&&this.MakePrimaryImage())return this;if(this.rgbFile){var q=n.width/
-n.zoom;var p=n.height/n.zoom;var t=n.x0;var r=this.offscreen.canvas.height-1-(n.y0+p);r=this.offscreen.context.getImageData(t,r,q,p);if(1===n.zoom)m.img=r;else for(m.img=l.createImageData(n.width,n.height),m=m.img,d=c=0;c<r.height;c++,d++){var u=c*r.width;var v=d*n.zoom;for(b=l=0;l<r.width;l++,b++){t=4*(u+l);var y=b*n.zoom;for(e=0;e<n.zoom;e++){var w=Math.floor(v+e);var x=w*n.width;for(w=0;w<n.zoom;w++){var z=Math.floor(y+w);z=4*(x+z);m.data[z]=r.data[t];m.data[z+1]=r.data[t+1];m.data[z+2]=r.data[t+
-2];m.data[z+3]=r.data[t+3]}}}}return this}m.img&&m.img.width===n.width&&m.img.height===n.height||(m.img=l.createImageData(n.width,n.height));m=m.img;if(!this.psColors)return this;var A=void 0!==this.params.opacity?255*this.params.opacity:void 0!==this.params.alpha?this.params.alpha:255;this.maskData&&(this.params.maskInvert?void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.opacity,q=255*this.params.maskOpacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?
-(r=this.params.alpha2,q=this.params.alpha1):(r=0,q=255):void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.maskOpacity,q=255*this.params.opacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?(r=this.params.alpha1,q=this.params.alpha2):(r=255,q=0));var B=Math.max(1,Math.floor(1/n.zoom));var E=n.zoom*B;c=Math.floor(n.y1-1);for(d=0;c>=n.y0;c-=B,d++)for(u=c*this.raw.width,v=d*E,l=Math.floor(n.x0),b=0;l<n.x1;l+=B,b++){if(k){p=g?g.colorData[u+l]:0;var C=f?f.colorData[u+
-l]:0;var F=h?h.colorData[u+l]:0;if(void 0===p||void 0===C||void 0===F)return a.globalOpts.rgb.active=!1,a.error("RGB images are incompatible. Turning off RGB mode.","",!1),this.mkRGBImage(),this}else t=this.colorData[u+l];this.maskData&&(A=0<this.maskData[u+l]?r:q);y=b*E;for(e=0;e<n.zoom;e++)for(w=Math.ceil(v+e),x=w*n.width,w=0;w<n.zoom;w++)if(z=Math.ceil(y+w),z=4*(x+z),z<m.data.length){if(k)m.data[z]=g?g.psColors[p][0]:0,m.data[z+1]=f?f.psColors[C][1]:0,m.data[z+2]=h?h.psColors[F][2]:0;else{if(void 0===
-this.psColors[t]){var D=sprintf("invalid image access: %s,%s",l,c);a.error(D)}m.data[z]=this.psColors[t][0];m.data[z+1]=this.psColors[t][1];m.data[z+2]=this.psColors[t][2]}m.data[z+3]=A}}return this};a.Image.prototype.blendImage=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];var e=$jscomp.makeIterator(b);d=e.next().value;var g=e.next().value;e=e.next().value;var f=/normal|multiply|screen|overlay|darken|lighten|color-dodge|color-burn|hard-light|soft-light|difference|exclusion|hue|saturation|color|luminosity|clear|copy|source-over|destination-over|source-in|destination-in|source-out|destination-out|source-atop|destination-atop|xor|lighter/i;
-if(0===b.length)return this.blend;if(!0===d||!1===d||"true"===d||"false"===d)return"true"===d?d=!0:"false"===d&&(d=!1),this.blend.active=d,this.xeqPlugins("image","onimageblend"),this.display.blendMode&&this.displayImage(),this;if(a.notNull(d)||a.notNull(g))a.notNull(d)&&(f.test(d)||a.error("invalid composite/blend operation: "+d),this.blend.mode=d),a.notNull(g)&&("string"===typeof g?g=parseFloat(g):"number"!==typeof g&&a.error("invalid opacity: "+g),this.blend.opacity=Math.min(Math.max(g,0),1)),
-a.notNull(e)&&("true"===e?e=!0:"false"===e&&(e=!1),this.blend.active=e),this.xeqPlugins("image","onimageblend"),this.display.blendMode&&this.blend.active&&this.displayImage();return this};a.Image.prototype.calcDisplayOffsets=function(c){var b=this.rgb.sect;this.ix=(this.display.canvas.width-this.rgb.img.width)/2;this.iy=(this.display.canvas.height-this.rgb.img.height)/2;a.notNull(b.ix)&&(this.ix-=b.ix/2);a.notNull(b.iy)&&(this.iy+=b.iy/2);this.ix=Math.floor(this.ix);this.iy=Math.floor(this.iy);if(c&&
-this.wcsAlign()){var d=this.wcsim;c=d.rgb.sect;d=a.pix2pix(d,this,d.getPan());var e=a.globalOpts.panWithinDisplay;a.globalOpts.panWithinDisplay=!0;this.tmp.ozoom=this.rgb.sect.ozoom;this.mkSection(d.x,d.y,c.zoom);this.rgb.sect.ozoom=this.tmp.ozoom;delete this.tmp.ozoom;a.globalOpts.panWithinDisplay=e;this.ix-=(b.xcen-(b.x0+b.x1)/2)*c.zoom;this.iy+=(b.ycen-(b.y0+b.y1)/2)*c.zoom}return this};a.Image.prototype.putImage=function(c){var b=this,d=this.rgb,e=this.display.context,g=function(c){if(!b.offscreenRGB){var d=
-document.createElement("canvas");var e=d.getContext("2d");d.width=c.width;d.height=c.height;a.ANTIALIAS||(e.imageSmoothingEnabled=!1,e.webkitImageSmoothingEnabled=!1,e.msImageSmoothingEnabled=!1);e.putImageData(c,0,0);b.offscreenRGB={canvas:d,context:e}}return b.offscreenRGB.canvas};c=c||{};"reproject"===this.rawDataLayer()&&c.wcsim&&(this.wcsim=c.wcsim,this.wcsim.isawcsim=!0);this.calcDisplayOffsets(!0);a.notNull(c.opacity)||a.notNull(c.blend)?(e.save(),void 0!==c.opacity&&(e.globalAlpha=c.opacity),
-void 0!==c.blend&&(e.globalCompositeOperation=c.blend),e.drawImage(g(d.img),this.ix,this.iy),e.restore()):e.putImageData(d.img,this.ix,this.iy);return this};a.Image.prototype.displayImage=function(c,b){var d=0;var e=[],g={};if(!1===c)return this.displayMode=!1,this;!0===c&&(this.displayMode=!0,c="all");if(!this.displayMode)return this;"object"===typeof c&&(b=c,c=null);c?"all"===c?(c="colors,scaled,rgb,display,plugins",g.notify=!0):"rgbonly"===c?(c="rgb,nodisplay",g.notify=!0):"display"===c&&(g.notify=
-!0):c="rgb";c.split(",").forEach(function(a,b,c){a=a.trim();g[a]=!0;switch(a){case "colors":g.scaled=!0;g.rgb=!0;break;case "scaled":g.rgb=!0}});g.display=!0;g.plugins=!0;this.rgbFile&&(g.colors=!1,g.scaled=!1);b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse displayImage opts: "+b,h)}if(this.display.blendMode&&!1!==b.blendMode)for(c=0;c<a.images.length;c++){var f=a.images[c];f.display===this.display&&f.blend.active&&(e.push(f),d++)}g.colors&&(this.mkColorData(),this.offscreenRGB=
-null);g.scaled&&(this.mkColorCells(),this.mkScaledCells(),this.offscreenRGB=null);if(g.rgb&&(this.mkRGBImage(),this.offscreenRGB=null,d))for(c=e.length-1;0<=c;c--)f=e[c],f.mkRGBImage(),f.offscreenRGB=null;if(g.nodisplay)return this;if(g.display){this.display.context.clear();if(d){for(c=e.length-1;0<=c;c--)e[c].calcDisplayOffsets(!1);for(c=e.length-1;0<=c;c--)f=e[c],d={wcsim:b.wcsim,blend:f.blend.mode,opacity:f.blend.opacity},f.putImage(d),f===this&&f.displayShapeLayers()}else this.putImage(b),this.displayShapeLayers();
-this.display.image=this;if(this.delayedShapes&&this.delayedShapes.length){for(;this.delayedShapes.length;)b=this.delayedShapes.shift(),this.addShapes(b.layer,b.shape,b.opts);delete this.delayedShapes}}this.xeqPlugins("image","onimagedisplay");return this};a.Image.prototype.refreshImage=function(c,b){b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse refresh opts: "+b,h)}if(c&&"string"!==typeof c){b.rawid=b.rawid||a.RAWID0;"function"===typeof b&&(b={onrefresh:b});!b.onrefresh&&
-a.imageOpts.onrefresh&&(b.onrefresh=a.imageOpts.onrefresh);if(!b.resetSection){var d=this.imageToLogicalPos({x:this.rgb.sect.xcen,y:this.rgb.sect.ycen});if(this.raw.wcs&&0<this.raw.wcs){var e=a.pix2wcs(this.raw.wcs,this.rgb.sect.xcen,this.rgb.sect.ycen);var g=e.trim().split(/\s+/);var f=a.saostrtod(g[0]);":"===String.fromCharCode(a.saodtype())&&"galactic"!==this.params.wcssys&&"ecliptic"!==this.params.wcssys&&(f*=15);g=a.saostrtod(g[1])}}e=this.rgb.sect.zoom;this.binning.obin=this.binning.bin;this.mkRawDataFromHDU(c,
-b);b.resetSection?(this.mkSection(),this.mkSection(e)):(this.raw.wcs&&0<this.raw.wcs&&a.notNull(f)&&a.notNull(g)?(g=a.wcs2pix(this.raw.wcs,f,g).trim().split(/ +/),c={x:parseFloat(g[0]),y:parseFloat(g[1])}):c=this.logicalToImagePos({x:d.x,y:d.y}),0<c.x&&c.x<this.raw.width&&0<c.y&&c.y<this.raw.height?this.mkSection(c.x,c.y,e):(this.mkSection(),this.mkSection(e)));this.displayImage("colors",b);this.reFlipRot90();this.notifyHelper();if(b.refreshRegions||b.resetSection||this.binning.obin!==this.binning.bin)this.refreshLayers(),
-this.updateShapes("regions","all","binning");this.xeqPlugins("image","onimagerefresh");a.waiting(!1);if(b.onrefresh)try{a.xeqByName(b.onrefresh,window,this)}catch(h){a.error("in image refresh callback",h)}return this}b.onrefresh&&(b.onload=b.onrefresh,delete b.onrefresh);b.refresh=this;e=document.domain?c||this.file:c||this.fitsFile||this.file;a.Load(e,b,{display:this.display})};a.Image.prototype.fileDimensions=function(){if(this.parent&&"BINTABLE"!==this.parent.raw.header.XTENSION){var a=this.parent.raw.header.TABDIM1?
-this.parent.raw.header.TABDIM1:this.parent.raw.header.NAXIS1;var b=this.parent.raw.header.TABDIM2?this.parent.raw.header.TABDIM2:this.parent.raw.header.NAXIS2}else a=this.raw.header.TABDIM1?this.raw.header.TABDIM1:this.raw.header.NAXIS1,b=this.raw.header.TABDIM2?this.raw.header.TABDIM2:this.raw.header.NAXIS2;return{xdim:a,ydim:b}};a.Image.prototype.maybePhysicalToImage=function(c){if("image"===this.imtab&&this.parent&&this.parent.lcs&&c.x&&c.y){c={x:c.x,y:c.y};c=a.Image.prototype.logicalToImagePos.call(this.parent,
-c,"ophysical");var b={x:Math.floor(c.x+.5),y:Math.floor(c.y+.5)}}return b};a.Image.prototype.displaySection=function(c,b){var d=this,e,g,f,h,k,l,m,n=function(b,c,d){var e;a.isNull(b)?a.isNull(c)||(e=c):e=b;return e||d},q=function(c,e){var f="";l=$.extend(!0,{},e||{});a.isNull(l.refreshRegions)&&(l.refreshRegions=!0);a.isNull(l.resetSection)&&(l.resetSection=!0);!1!==l.waiting&&a.waiting(!0,d.display);c.fits.extname?f="["+c.fits.extname+"]":c.fits.extnum&&0<c.fits.extnum?f="["+c.fits.extnum+"]":d.parent&&
-(d.parent.extname?f="["+d.parent.extname+"]":d.parent.extnum&&0<d.parent.extnum&&(f="["+d.parent.extnum+"]"));f&&(l.id=d.id.replace(/\[.*\]/,"")+f,l.file=d.file.replace(/\[.*\]/,"")+f);if(l.separate){delete l.xcen;delete l.ycen;if("string"===typeof l.separate){f=l.separate.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e)}else l.display=d.display;"parentFile"===g&&d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:
-d.fitsFile);h=d.listRegions("all",{mode:1,saveid:!0});b=l.ondisplaysection||l.onrefresh||b;k=new a.Image(c,l,b);k.binning.obin=k.binning.bin;h&&!1!==l.refreshRegions&&k.addShapes("regions",h,{restoreid:!0});d.reFlipRot90();k.setStatus("displaySection","complete")}else if("string"===typeof l.refresh){delete l.xcen;delete l.ycen;f=l.refresh.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e);l.display.image?(l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||
-l.onrefresh||b,l.display.image.refreshImage(c,l)):("parentFile"===g&&d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:d.fitsFile),h=d.listRegions("all",{mode:1,saveid:!0}),b=l.ondisplaysection||l.onrefresh||b,k=new a.Image(c,l,b),k.binning.obin=k.binning.bin,h&&k.addShapes("regions",h,{restoreid:!0}),d.reFlipRot90())}else l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||l.onrefresh||b,d.refreshImage(c,l);d.setStatus("displaySection","complete");a.waiting(!1)};this.raw&&
-this.raw.hdu&&this.raw.hdu.fits||a.error("invalid image for displaySection");c=c||{};if("full"===c){var p=this.fileDimensions();c={xdim:p.xdim,ydim:p.ydim,xcen:0,ycen:0}}else{if("selected"===c){this.selectShapes("regions","selected",function(a){a=a.pub;var c,e=0,f=0,g=1E6,h=0,k=1E6,m=0,n=a.shape;if(!d.parentFile&&a.lcs){a=a.lcs;var p=a.x;var t=a.y;if(c=d.maybePhysicalToImage({x:p,y:t}))p=c.x,t=c.y}else p=a.x,t=a.y;switch(n){case "annulus":var q=2*a.radii[a.radii.length-1];var r=2*a.radii[a.radii.length-
-1];break;case "box":q=a.width;r=a.height;break;case "circle":q=2*a.radius;r=2*a.radius;break;case "ellipse":q=2*a.r1;r=2*a.r2;break;case "polygon":case "line":for(q=0;q<a.pts.length;q++)e+=a.pts[q].x,f+=a.pts[q].y,a.pts[q].x>h&&(h=a.pts[q].x),a.pts[q].x<g&&(g=a.pts[q].x),a.pts[q].y>m&&(m=a.pts[q].y),a.pts[q].y<k&&(k=a.pts[q].y);a.x=e/a.pts.length;a.y=f/a.pts.length;"line"===a.shape&&2===a.pts.length?(q=Math.sqrt((a.pts[0].x-a.pts[1].x)*(a.pts[0].x-a.pts[1].x)+(a.pts[0].y-a.pts[1].y)*(a.pts[0].y-a.pts[1].y)),
-r=1):(q=h-g,r=m-k);break;case "text":r=q=10}l={xcen:p,ycen:t,xdim:q,ydim:r,from:"virtualFile",separate:!0,refreshRegions:!1,resetSection:!0};d.displaySection(l,b)});return}if("string"===typeof c)try{c=JSON.parse(c)}catch(y){a.error("can't parse section opts: "+c,y)}}var t=c.separate?$.extend(!0,{},this.raw.hdu):this.raw.hdu;(g=c.from)||(g=this.parentFile&&a.helper.connected&&a.helper.js9helper?"parentFile":"virtualFile");if(t.table)p=t.table;else{if("parentFile"===g&&this.raw.header&&a.notNull(this.raw.header.LTM1_1)){var r=
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+!0;this.params=$.extend(!0,this.params,a.imageOpts,g);this.display.image&&(this.params.inherit=this.display.image.params.inherit,this.params.inherit&&(this.params=$.extend(!0,this.params,this.display.image.params)));b=a.globalOpts.xeqPlugins;a.globalOpts.xeqPlugins=!1;this.setColormap(this.params.colormap);a.globalOpts.xeqPlugins=b;this.displayMode=!0;this.clickState=0;this.clickInRegion=!1;this.clickInLayer=null;this.queried=!1;g&&g.proxyFile&&(this.proxyFile=g.proxyFile);g&&g.proxyURL&&(this.proxyURL=
+g.proxyURL);g&&g.parentFile&&(this.parentFile=g.parentFile);if(g&&g.parent&&(this.parent=g.parent,this.parent.cardstr&&this.parent.ncard)){this.parent.raw={header:{},history:[],comments:[]};for(b=0;b<this.parent.ncard;b++)m=this.parent.cardstr.slice(80*b,80*(b+1)),m=a.cardpars(m),void 0!==m&&("HISTORY"===m[0]?this.parent.raw.header[m[0]+"__"+f++]=m[1]:"COMMENT"===m[0]?this.parent.raw.header[m[0]+"__"+h++]=m[1]:this.parent.raw.header[m[0]]=m[1]);this.parent.lcs={};a.Image.prototype.initLCS.call(this.parent,
+this.parent.raw.header)}g&&g.id&&(this.id=g.id);this.iy=this.ix=0;this.png={};this.png.image=new Image;this.status={};this.rgb={};this.rgb.sect={zoom:1,ozoom:1};this.layers={};this.zlayer=a.SHAPEZINDEX;this.lcs={};this.aux={};this.binning={bin:1,obin:1};this.raws=[];this.blend=$.extend(!0,{},a.blendOpts);this.updateshapes=!1;if(c)switch(a.waiting(!0,this.display),typeof c){case "object":this.source=g.source||"fits";this.mkRawDataFromHDU(c,$.extend({},{file:c.filename},g));k(g);if(this.params.zoom){var n=
+this.parseZoom(this.params.zoom);this.rgb.sect.zoom=n;this.rgb.sect.ozoom=n}this.mkSection();g&&g.rgbFile?(this.rgbFile=g.rgbFile,$(this.png.image).on("load",function(){if(e.png.image.width!==e.raw.width||e.png.image.height!==e.raw.height){var b=sprintf("rgb dims [%s,%s] don't match image [%s,%s]",e.png.image.width,e.png.image.height,e.raw.width,e.raw.height);a.error(b)}e.mkOffScreenCanvas();e.displayImage("all",g);l(d)}).on("error",function(){a.waiting(!1);a.error("could not load image: "+e.id)}),
+this.png.image.src=this.rgbFile):(this.displayImage("all",g),l(d));break;case "string":this.source=g.source||"fits2png";this.imtab="image";this.file=a.cleanPath(c);this.id0=this.file.split("/").reverse()[0];this.id=a.getImageID(this.id0,this.display.id);this.setStatus("load","loading");$(this.png.image).on("load",function(){e.mkOffScreenCanvas();e.mkRawDataFromPNG();e.params.zoom&&(n=e.parseZoom(e.params.zoom),e.rgb.sect.zoom=n,e.rgb.sect.ozoom=n);k(g);e.mkSection();e.displayImage("all",g);l(d);a.DEBUG&&
+a.log("JS9 image: %s dims(%d,%d) min/max(%d,%d)",e.file,e.raw.width,e.raw.height,e.raw.dmin,e.raw.dmax)}).on("error",function(){a.waiting(!1);a.error("could not load image: "+e.id)});this.png.image.src=c;break;default:a.error("unknown specification type for Load: "+typeof c)}};a.Image.prototype.getImageData=function(a){var b=null,c=this.fileDimensions(),e=c.xdim;c=c.ydim;if(a)if("array"===a)b=Array.from(this.raw.data);else if("base64"===a){b="";var g=new Uint8Array(this.raw.data.buffer),f=g.byteLength;
+for(a=0;a<f;a++)b+=String.fromCharCode(g[a]);b=window.btoa(b)}else a&&"false"!==a&&(b=this.raw.data);return{id:this.id,file:this.file,fits:this.fitsFile||"",source:this.source,imtab:this.imtab,width:this.raw.width,height:this.raw.height,bitpix:this.raw.bitpix,bin:this.binning.bin,header:this.raw.header,hdus:this.hdus,dwidth:this.display.width,dheight:this.display.height,fwidth:e,fheight:c,data:b}};a.Image.prototype.closeImage=function(c){var b,d=!1;var e=a.images.length;var g=a.Dysel.getDisplayOr(this.display);
+c=c||{};if("string"===typeof c)try{c=JSON.parse(c)}catch(h){a.error("can't parse closeImage opts: "+c,h)}for(b=0;b<e;b++)a.images[b].wcsim===this&&(a.images[b].wcsim=null);for(b=0;b<e;b++)if(this===a.images[b]){e=a.images[b];e===e.display.image&&(d=b+1);if(d)for(f in!1!==c.clear&&(e.display.clearMessage(),e.display.context.clear()),e.layers)e.layers.hasOwnProperty(f)&&("main"===e.layers[f].dlayer.dtype||e.display===g)&&e.showShapeLayer(f,!1,{local:!0});e.xeqPlugins("image","onimageclose");d&&(e.display.image=
+null);switch(e.cmapObj.name){case "red":a.globalOpts.rgb.rim=null;break;case "green":a.globalOpts.rgb.gim=null;break;case "blue":a.globalOpts.rgb.bim=null}for(c=0;c<e.raws.length;c++){var f=e.raws[c];f.hdu&&f.hdu.fits&&(g=a.lookupVfile(f.hdu.fits.vfile),1>=g.length&&a.cleanupFITSFile(f,!0));f.altwcs&&this.freeWCS(f)}e.removeProxyFile();e.rgb=null;e.offscreen=null;e.raw=null;e.colorData=null;e.colorCells=null;e.psColors=null;e.psInverse=null;a.images.splice(b,1);break}if(d){for(b=d-=2;0<=b;b--)if(e=
+a.images[b],this.display===e.display){e.displayImage("all");e.refreshLayers();d=a.images.length;break}for(b=a.images.length-1;b>d;b--)if(e=a.images[b],this.display===e.display){e.displayImage("all");e.refreshLayers();break}}};a.Image.prototype.mkOffScreenCanvas=function(){if(!this.png||!this.png.image)return this;this.offscreen={};this.offscreen.canvas=document.createElement("canvas");this.offscreen.canvas.setAttribute("width",this.png.image.width);this.offscreen.canvas.setAttribute("height",this.png.image.height);
+this.offscreen.context=this.offscreen.canvas.getContext("2d");a.ANTIALIAS||(this.offscreen.context.imageSmoothingEnabled=!1,this.offscreen.context.webkitImageSmoothingEnabled=!1,this.offscreen.context.msImageSmoothingEnabled=!1);this.offscreen.context.drawImage(this.png.image,0,0);try{this.offscreen.img=this.offscreen.context.getImageData(0,0,this.png.image.width,this.png.image.height)}catch(c){a.CHROMEFILEWARNING&&"Chrome"===a.BROWSER[0]&&""===document.domain?alert("When using the file:// URI, Chrome must be run with the --allow-file-access-from-files switch to permit JS9 to access data."):
+alert("could not read off-screen image data [same-origin policy violation?]")}return this};a.Image.prototype.initLCS=function(c){var b=[[0,0,0],[0,0,0],[0,0,0]];c=c||this.raw.header;var d=c.CRPIX1||1,e=c.CRPIX2||1;if(c.LCSROTA2&&c.CROTA2){var g=-c.CROTA2*Math.PI/180;var f=Math.sin(g);var h=Math.cos(g);g=[[0,0,0],[0,0,0],[0,0,0]];g[0][0]=h;g[0][1]=-f;g[0][2]=0;g[1][0]=f;g[1][1]=h;g[1][2]=0;(f=a.invertMatrix3(g))||(g=null)}b[0][0]=a.defNull(c.LTM1_1,1);b[1][0]=c.LTM2_1||0;b[0][1]=c.LTM1_2||0;b[1][1]=
+a.defNull(c.LTM2_2,1);b[2][0]=c.LTV1||0;b[2][1]=c.LTV2||0;if("image"===this.imtab&&this.params.ltvbug){if(a.notNull(c.LTV1))for(h=0;2>h;h++){var k=Math.abs(b[0][h]);0<k&&1>k&&(b[2][0]+=.5*k)}if(a.notNull(c.LTV2))for(h=0;2>h;h++)k=Math.abs(b[1][h]),0<k&&1>k&&(b[2][1]+=.5*k)}this.lcs.physical={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.physical.reverse?g&&(this.lcs.physical.frot=$.extend(!0,[],g),this.lcs.physical.rrot=$.extend(!0,[],f),this.lcs.physical.cx=d-b[2][0]-1,this.lcs.physical.cy=
+e-b[2][1]-1):delete this.lcs.physical;b[0][0]=a.defNull(c.DTM1_1,1);b[1][0]=c.DTM2_1||0;b[0][1]=c.DTM1_2||0;b[1][1]=a.defNull(c.DTM2_2,1);b[2][0]=c.DTV1||0;b[2][1]=c.DTV2||0;this.lcs.detector={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.detector.reverse?g&&(this.lcs.detector.frot=$.extend(!0,[],g),this.lcs.detector.rrot=$.extend(!0,[],f),this.lcs.detector.cx=d-b[2][0]-1,this.lcs.detector.cy=e-b[2][1]-1):delete this.lcs.detector;b[0][0]=a.defNull(c.ATM1_1,1);b[1][0]=c.ATM2_1||0;
+b[0][1]=c.ATM1_2||0;b[1][1]=a.defNull(c.ATM2_2,1);b[2][0]=c.ATV1||0;b[2][1]=c.ATV2||0;this.lcs.amplifier={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.amplifier.reverse?g&&(this.lcs.amplifier.frot=$.extend(!0,[],g),this.lcs.amplifier.rrot=$.extend(!0,[],f),this.lcs.amplifier.cx=d-b[2][0]-1,this.lcs.amplifier.cy=e-b[2][1]-1):delete this.lcs.amplifier;this.params&&!this.lcs[this.params.lcs]&&(this.params.lcs="image");this.params&&!this.params.wcssys0&&(this.setWCSSys("physical"),this.params.wcssys0=
+this.params.lcs);this.lcs.physical&&!this.lcs.ophysical&&(this.lcs.ophysical=$.extend(!0,{},this.lcs.physical));return this};a.Image.prototype.mkRawDataFromIMG=function(c){var b,d;if(c){var e=c.height;var g=c.width;var f=c.data;this.raws.push({from:"img"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;this.raw.data=new Float32Array(e*g);for(d=c=0;d<e;d++)for(b=0;b<g;b++){var h=.299*f[c]+.587*f[c+1]+.114*f[c+2];this.raw.data[(e-d)*g+b]=h;c+=4}this.raw.width=g;this.raw.height=e;this.raw.bitpix=
+-32;this.dataminmax();this.source="png";this.raw.header={SIMPLE:!0,NAXIS:2,NAXIS1:this.raw.width,NAXIS2:this.raw.height,BITPIX:this.raw.bitpix};this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");return this}};a.Image.prototype.mkRawDataFromPNG=function(){var c,b,d;var e=b=0;var g=[];var f=new ArrayBuffer(8);var h=new Uint8Array(f),k=new DataView(f);if(!this.offscreen.img)return this;this.raws.push({from:"png"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;var l=this.offscreen.img.data;
+for(c=f=0;f<l.length&&0!==l[f];f++)if(255!==l[f]&&(g[c]=String.fromCharCode(l[f]),c++),15===c&&'{"js9Protocol":'!==g.join("")){var m=!0;break}if(15>c||m)this.mkRawDataFromIMG(this.offscreen.img);else{c=g.join("");2<a.DEBUG&&a.log("jsonHeader: %s",c);try{var n=JSON.parse(c)}catch(p){a.error("can't read FITS header from PNG file: "+c,p)}if(1===n.js9Protocol)this.raw.header=n,this.raw.endian=this.raw.header.js9Endian,this.raw.protocol=this.raw.header.js9Protocol;else for(this.raw.endian=n.js9Endian,
+this.raw.protocol=n.js9Protocol,this.raw.cardstr=n.cardstr,this.raw.ncard=n.ncard,this.raw.header={},n=this.raw.ncard,c=0;c<n;c++)m=this.raw.cardstr.slice(80*c,80*(c+1)),m=a.cardpars(m),void 0!==m&&("HISTORY"===m[0]?this.raw.header[m[0]+"__"+b++]=m[1]:"COMMENT"===m[0]?this.raw.header[m[0]+"__"+e++]=m[1]:this.raw.header[m[0]]=m[1]);f+=1;this.raw.header.NAXIS1?this.raw.width=this.raw.header.NAXIS1:a.error("NAXIS1 missing from PNG-based FITS header");this.raw.header.NAXIS2?this.raw.height=this.raw.header.NAXIS2:
+a.error("NAXIS2 missing from PNG-based FITS header");this.raw.header.BITPIX?this.raw.bitpix=this.raw.header.BITPIX:a.error("BITPIX missing from PNG-based FITS header");"little"===this.raw.endian?d=!0:"big"===this.raw.endian?d=!1:a.error("js9Endian missing from PNG-based FITS header");this.object=this.raw.header.OBJECT;this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;b=this.raw.width*this.raw.height;e=f%4;switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(b);
+for(c=0;c<b;c++){switch(e){case 0:var q=l[f];f+=1;e=1;break;case 1:q=l[f];f+=1;e=2;break;case 2:q=l[f];f+=2;e=0;break;case 3:q=l[f+1],f+=2,e=1}this.raw.data[c]=q}break;case 16:case -16:16===this.raw.bitpix?(this.raw.data=new Int16Array(b),n=DataView.prototype.getInt16):(this.raw.data=new Uint16Array(b),n=DataView.prototype.getUint16);for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=2;e=2;break;case 1:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=3;e=0;break;case 2:h[0]=l[f];h[1]=
+l[f+2];q=n.call(k,0,d);f+=3;e=1;break;case 3:h[0]=l[f+1],h[1]=l[f+2],q=n.call(k,0,d),f+=3,e=2}this.raw.data[c]=q}break;case 32:case -32:32===this.raw.bitpix?(this.raw.data=new Int32Array(b),n=DataView.prototype.getInt32):(this.raw.data=new Float32Array(b),n=DataView.prototype.getFloat32);for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=1;break;case 1:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=2;break;case 2:h[0]=l[f];
+h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=6;e=0;break;case 3:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],q=n.call(k,0,d),f+=6,e=1}this.raw.data[c]=q}break;case -64:this.raw.data=new Float64Array(b);for(c=0;c<b;c++){switch(e){case 0:case 4:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+6];h[6]=l[f+8];h[7]=l[f+9];q=k.getFloat64(0,d);f+=10;e=2;break;case 1:case 5:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+9];q=k.getFloat64(0,
+d);f+=11;e=0;break;case 2:case 6:h[0]=l[f];h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+6];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+10];q=k.getFloat64(0,d);f+=11;e=1;break;case 3:case 7:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],h[4]=l[f+6],h[5]=l[f+7],h[6]=l[f+9],h[7]=l[f+10],q=k.getFloat64(0,d),f+=11,e=2}this.raw.data[c]=q}break;default:a.error("unsupported bitpix in PNG file: "+this.raw.bitpix)}this.dataminmax();this.offscreen.img=null;this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");
+return this}};a.Image.prototype.mkRawDataFromHDU=function(c,b){var d=this,e,g,f,h;var k=h=0;b=b||{};if($.isArray(c)||a.isTypedArray(c)||c instanceof ArrayBuffer){$.isArray(c[0])&&(c=c.reduce(function(a,b){return a.concat(b)}));var l={image:c}}else"object"===typeof c?l=c:a.error("unknown or missing input for HDU creation");l.data&&!l.image&&(l.image=l.data);l.image||a.error("data missing from JS9 FITS object: "+JSON.stringify(l));2>l.naxis&&a.error("can't image a FITS file with less than 2 dimensions");
+if(this.raw){var m=this.raw;var n=this.raw.width;var q=this.raw.height;var p=this.raw.bitpix;var t=a.defNull(this.raw.header.LTM1_1,1);var r=this.params.wcssys;var u=this.params.wcsunits;this.freeWCS()}this.raws=this.raws||[];if(f=this.raws.length){b.rawid=b.rawid||a.RAWIDX;for(e=g=0;e<f;e++)if(b.rawid===this.raws[e].id){var v=this.raws[e].from;this.raws[e]={from:v,id:b.rawid};this.raw=this.raws[e];g++;break}g||(this.raws.push({from:"hdu",id:b.rawid}),this.raw=this.raws[f],m=null)}else this.raws.push({from:"hdu"}),
+this.raw=this.raws[f],this.raw.id=a.RAWID0;this.raw.hdu=l;l.axis?(this.raw.width=l.axis[1],this.raw.height=l.axis[2]):l.naxis1&&l.naxis2?(this.raw.width=l.naxis1,this.raw.height=l.naxis2):n&&q&&(this.raw.width=n,this.raw.height=q);l.bitpix?this.raw.bitpix=l.bitpix:p&&(this.raw.bitpix=p);if("base64"===l.encoding)for(v=window.atob(l.image),l.image=new ArrayBuffer(v.length),g=new Uint8Array(l.image),e=0;e<v.length;e++)g[e]=v.charCodeAt(e);$.isArray(l.image[0])&&(l.image=l.image.reduce(function(a,b){return a.concat(b)}));
+switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(l.image);break;case 16:this.raw.data=new Int16Array(l.image);break;case -16:this.raw.data=new Uint16Array(l.image);break;case 32:this.raw.data=new Int32Array(l.image);break;case -32:this.raw.data=new Float32Array(l.image);break;case -64:this.raw.data=new Float64Array(l.image)}this.raw.card=l.card;this.raw.cardstr=l.cardstr;this.raw.ncard=l.ncard;if(l.head)this.raw.header=l.head;else if(this.raw.card)for(this.raw.header={},g=this.raw.card.length,
+e=0;e<g;e++)f=a.cardpars(this.raw.card[e]),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else if(this.raw.cardstr)for(this.raw.header={},g=this.raw.ncard,e=0;e<g;e++)f=this.raw.cardstr.slice(80*e,80*(e+1)),f=a.cardpars(f),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else this.raw.header={},this.raw.header.SIMPLE=
+!0,this.raw.header.NAXIS=2,this.raw.header.NAXIS1=this.raw.width,this.raw.header.NAXIS2=this.raw.height,this.raw.header.BITPIX=this.raw.bitpix;e=this.raw.header;m||this.parentFile||this.parent||void 0===e.LTV1&&void 0===e.LTV2&&void 0===e.LTM1_1&&void 0===e.LTM2_2||(this.parent={},this.parent.raw={header:$.extend(!0,{},e)},this.parent.lcs={},a.Image.prototype.initLCS.call(this.parent,this.parent.raw.header));if("image"===l.imtab&&void 0!==l.x1&&1!==l.x1||void 0!==l.y1&&1!==l.y1||void 0===l.bin||1!==
+l.bin)g=l.bin||1,h=void 0!==l.x1?l.x1:0,k=void 0!==l.y1?l.y1:0,void 0!==e.NAXIS1&&(e.NAXIS1/=g),void 0!==e.NAXIS2&&(e.NAXIS2/=g),void 0!==e.CRPIX1&&(e.CRPIX1=(e.CRPIX1-h)/g+.5),void 0!==e.CRPIX2&&(e.CRPIX2=(e.CRPIX2-k)/g+.5),void 0!==e.CDELT1&&(e.CDELT1*=g),void 0!==e.CDELT2&&(e.CDELT2*=g),void 0!==e.CD1_1&&(e.CD1_1*=g),void 0!==e.CD1_2&&(e.CD1_2*=g),void 0!==e.CD2_1&&(e.CD2_1*=g),void 0!==e.CD2_2&&(e.CD2_2*=g),e.LTM1_1=a.defNull(e.LTM1_1,1),e.LTM1_1/=g,e.LTM2_1=e.LTM2_1||0,e.LTM2_1/=g,e.LTM1_2=e.LTM1_2||
+0,e.LTM1_2/=g,e.LTM2_2=a.defNull(e.LTM2_2,1),e.LTM2_2/=g,e.LTV1=e.LTV1||0,e.LTV1=(e.LTV1-h)/g+.5,e.LTV2=e.LTV2||0,e.LTV2=(e.LTV2-k)/g+.5;b.lcsUseRota2&&(e.LCSROTA2=!0);b.file&&b.file!==this.file?(this.file=b.file,this.id=null):b.filename&&b.filename!==this.file?(this.file=b.filename,this.id=null):l.filename&&l.filename!==this.file&&(this.file=l.filename,this.id=null);this.file0=this.file=this.file||a.ANON+a.uniqueID();b.id&&(this.id0=b.id,this.id=a.getImageID(b.id,this.display.id,this));this.id||
+!this.file||this.file.match(/\[.*[^a-zA-Z0-9_].*\]/)||(b.extname||b.extnum?(b.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extname+"]"):b.extnum&&0<b.extnum&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extnum+"]"),l&&l.fits&&(b.extname&&(l.fits.extname=b.extname),b.extnum&&0<b.extnum&&(l.fits.extnum=b.extnum))):l.fits?l.fits.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+l.fits.extname+"]"):l.fits.extnum&&0<l.fits.extnum&&(this.file=this.file.replace(/\[.*\]/,
+""),this.file+="["+l.fits.extnum+"]"):this.raw.header&&this.raw.header.EXTNAME&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+this.raw.header.EXTNAME+"]"));this.id||(this.id0=(this.parentFile||this.file).split("/").reverse()[0],this.id=a.getImageID(this.id0,this.display.id,this));b.proxyFile&&(this.proxyFile=b.proxyFile);this.raw.filter=b.filter||"";this.imtab=l.imtab?l.imtab:l.table?"table":"image";this.raw.imtab=this.imtab;void 0!==l.dmin&&void 0!==l.dmax?this.dataminmax(l.dmin,l.dmax):
+this.dataminmax();this.object=this.raw.header.OBJECT;this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;this.binning.bin="table"===this.imtab&&l.table?l.table.bin||1:l.bin?l.bin:1;b.ltm2obin&&e.LTM1_1?this.binning.obin=e.LTM1_1/t:m||(this.binning.obin=this.binning.bin);this.initWCS();r&&this.setWCSSys(r);u&&this.setWCSUnits(u);this.initLCS();try{if(b.hdus)this.hdus=b.hdus;else if(this.parentFile&&a.helper.connected&&a.helper.js9helper)c={id:this.expandMacro("$id"),cmd:this.expandMacro("js9Xeq listhdus $filename"),
+image:this.file,fits:this.parentFile,rtype:"text"},a.helper.send("listhdus",c,function(a){if(!a.stderr&&!a.errcode&&a.stdout)try{d.hdus=JSON.parse(a.stdout)}catch(w){d.hdus=null}});else if(this.raw&&this.raw.hdu&&this.raw.hdu.fits&&(v=a.listhdu(this.raw.hdu.fits.vfile)))try{this.hdus=JSON.parse(v)}catch(y){this.hdus=null}}catch(y){}if(this.raw.hdu.fits&&this.raw.hdu.fits.vfile){v=a.globalOpts.clearImageMemory;v=!1===v?["never"]:!0===v?["always"]:v.toLowerCase().split(/[,>]/);m=c=!1;e=0;for(b=!1;e<
+v.length&&!b;e++)switch(v[e]){case "never":c=!1;b=!0;break;case "always":b=c=!0;break;case "heap":m=!0;break;case "auto":2>=this.raw.header.NAXIS&&(!this.hdus||1===this.hdus.length)?c=!0:(c=!1,b=!0);break;case "nocube":2>=this.raw.header.NAXIS?c=!0:(c=!1,b=!0);break;case "noext":this.hdus&&1!==this.hdus.length?(c=!1,b=!0):c=!0;break;case "size":v[e+1]?a.vsize(l.fits.vfile)>1E6*v[e+1]?c=!0:(c=!1,b=!0):(c=!1,b=!0)}c?(2<a.DEBUG&&a.log("removing underlying FITS vfile for %s: %s",this.id,this.raw.hdu.fits.vfile),
+a.cleanupFITSFile(this.raw,!0)):m&&(2<a.DEBUG&&a.log("freeing heap space for %s: %s",this.id,this.raw.hdu.fits.vfile),a.cleanupFITSFile(this.raw,!1))}this.xeqPlugins("image","onrawdata");return this};a.Image.prototype.mkSection=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];d=this.rgb.sect;d.ozoom=d.zoom;switch(b.length){case 0:d.xcen=Math.floor(this.raw.width/2);d.ycen=Math.floor(this.raw.height/2);d.width=Math.min(this.raw.width,this.display.canvas.width);d.height=Math.min(this.raw.height,
+this.display.canvas.height);break;case 1:a.isNumber(b[0])||a.error("invalid input for generating section: "+b[0]);d.zoom=parseFloat(b[0]);d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width);d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height);break;case 2:a.isNumber(b[0])&&a.isNumber(b[1])||a.error("invalid input for generating section: "+b[0]+" "+b[1]);d.xcen=parseFloat(b[0]);d.ycen=parseFloat(b[1]);a.notNull(d.ix)&&(d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width));
+a.notNull(d.iy)&&(d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height));break;case 3:a.isNumber(b[0])&&a.isNumber(b[1])&&a.isNumber(b[2])||a.error("invalid input for generating section: "+b[0]+" "+b[1]+" "+b[2]),d.xcen=parseFloat(b[0]),d.ycen=parseFloat(b[1]),d.zoom=parseFloat(b[2]),d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width),d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height)}delete d.ix;delete d.iy;d.x0=d.xcen-d.width/(2*d.zoom);d.y0=d.ycen-
+d.height/(2*d.zoom);d.x1=d.xcen+d.width/(2*d.zoom);d.y1=d.ycen+d.height/(2*d.zoom);0>d.x0&&(a.globalOpts.panWithinDisplay?d.x1-=d.x0:d.ix=d.x0*d.zoom,d.x0=0);0>d.y0&&(a.globalOpts.panWithinDisplay?d.y1-=d.y0:d.iy=d.y0*d.zoom,d.y0=0);d.x1>this.raw.width&&(a.globalOpts.panWithinDisplay?d.x0-=d.x1-this.raw.width:d.ix=(d.x1-this.raw.width)*d.zoom,d.x1=this.raw.width);d.y1>this.raw.height&&(a.globalOpts.panWithinDisplay?d.y0-=d.y1-this.raw.height:d.iy=(d.y1-this.raw.height)*d.zoom,d.y1=this.raw.height);
+0<d.ix&&0<d.x0&&(b=Math.min(d.ix,d.x0),d.x0-=b,d.ix+=b*d.zoom);0>d.ix&&d.x1<this.raw.width&&(b=Math.min(this.raw.width-d.x1,Math.abs(d.ix)),d.x1+=b,d.ix-=b*d.zoom);0<d.iy&&0<d.y0&&(b=Math.min(d.iy,d.y0),d.y0-=b,d.iy+=b*d.zoom);0>d.iy&&d.y1<this.raw.height&&(b=Math.min(this.raw.height-d.y1,Math.abs(d.iy)),d.y1+=b,d.iy-=b*d.zoom);d.x0=Math.max(0,d.x0);d.x1=Math.min(this.raw.width,d.x1);d.y0=Math.max(0,d.y0);d.y1=Math.min(this.raw.height,d.y1);d.x0=Math.floor(d.x0);d.y0=Math.floor(d.y0);d.x1=Math.floor(d.x1);
+d.y1=Math.floor(d.y1);d.width=Math.ceil((d.x1-d.x0)*d.zoom);d.height=Math.ceil((d.y1-d.y0)*d.zoom);if(0>=d.width||0>=d.height)b=sprintf("invalid image section: %s,%s [%s,%s, %s,%s, %s]",d.width,d.height,d.x0,d.y0,d.x1,d.y1,d.zoom),a.error(b);this.offscreenRGB=null;this.params.zoom=d.zoom;return this};a.Image.prototype.mkColorData=function(){var c,b=a.SCALESIZE,d=this.params.scalemin,e=this.params.scalemax,g=this.raw.width*this.raw.height,f=(b-1)/(e-d);if(!this.colorData||this.colorData.length<g)this.colorData=
+new Int32Array(g);for(c=0;c<g;c++){var h=this.raw.data[c];this.colorData[c]=h<=d?0:h>=e?b-1:Math.floor((h-d)*f+.5)}return this};a.Image.prototype.calcContrastBias=function(c){var b=this.params.bias,d=a.COLORSIZE,e=this.params.contrast;if(1E-4>b-.5&&1E-4>e-1)return c;this.params.invert&&(b=1-b);c=Math.floor(((c/d-b)*e+.5)*d);return 0>c?0:c>=d?d-1:c};a.Image.prototype.mkColorCells=function(){var c,b=a.COLORSIZE;this.colorCells||(this.colorCells=[]);for(c=0;c<b;c++){var d=this.params.invert?b-c-1:c;
+d=this.calcContrastBias(d);this.colorCells[c]=this.cmapObj.mkColorCell(d)}return this};a.Image.prototype.mkScaledCells=function(){var c,b;var d=a.COLORSIZE;var e=a.SCALESIZE,g=a.INVSIZE;var f=a.HISTSIZE;if(!this.colorCells)return this;if(!this.psColors){var h=this.psColors=[];var k=this.params.nancolor;var l=[];"#"===k.charAt(0)&&(k=k.slice(1));k=k.toUpperCase();for(c=b=0;6>b;b+=2,c++){var m="0123456789ABCDEF".indexOf(k.charAt(b));var n="0123456789ABCDEF".indexOf(k.charAt(b+1));l[c]=16*m+n}h[NaN]=
+l}this.psInverse||(this.psInverse=[],this.psInverse[NaN]=0);k=this.params.scalemax-this.params.scalemin;b=this.params.scalemin;switch(this.params.scale){case "linear":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*k+b;break;case "log":f=this.params.exp;for(h=0;h<e;h++)c=Math.log(f*h/e+1)/Math.log(f),c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=(Math.pow(f,h/g)-1)/f,this.psInverse[h]=c*k+
+b;break;case "power":f=this.params.exp;for(h=0;h<e;h++)c=(Math.pow(f,h/e)-1)/f,c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=Math.log(f*h/g+1)/Math.log(f),this.psInverse[h]=c*k+b;break;case "sqrt":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.sqrt(c)*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*c*k+b;break;case "squared":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=
+0;h<g;h++)c=Math.sqrt(h/g),this.psInverse[h]=c*k+b;break;case "asinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.asinh(10*c)/3*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.sinh(3*c)/10,this.psInverse[h]=c*k+b;break;case "sinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.sinh(3*c)/10*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.asinh(10*c)/3,this.psInverse[h]=c*k+b;break;case "histeq":l=this.raw.data;var q=this.raw.width*this.raw.height;
+k=this.raw.dmax-this.raw.dmin;var p=this.raw.dmax;b=this.raw.dmin;var t=c=0;m=[];if(!this.hist||!this.hist.length){this.hist=[];for(h=0;h<f;h++)m[h]=0;for(h=0;h<q;h++)l[h]>=b&&l[h]<=p&&(n=Math.floor((l[h]-b)/k*f+.5),n<f&&(m[n]+=1));for(h=0;h<f;h++)t+=m[h];n=t/f;for(h=l=0;h<f&&l<f;h++)for(this.hist[h]=l/f,c+=m[h];c>=n&&l<f;)c-=n,l++;for(c=(f-1)/f;h<f;)this.hist[h++]=c}for(h=0;h<e;h++)c=this.hist[h*f/e],c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++){d=h/g;for(n=0;n<f-1&&!(this.hist[n]>
+d);n++);c=n/f;this.psInverse[h]=c*k+b}break;default:a.error("unknown scale '"+this.params.scale+"'")}return this};a.Image.prototype.mkRGBImage=function(){var c,b,d,e,g=null,f=null,h=null,k=!1;if(!this.rgb)return this;!a.globalOpts.rgb.active||this!==a.globalOpts.rgb.rim&&this!==a.globalOpts.rgb.gim&&this!==a.globalOpts.rgb.bim||(k=!0,a.globalOpts.rgb.rim&&(g=a.globalOpts.rgb.rim),a.globalOpts.rgb.gim&&(f=a.globalOpts.rgb.gim),a.globalOpts.rgb.bim&&(h=a.globalOpts.rgb.bim));var l=this.display.context;
+var m=this.rgb;var n=m.sect;if(this.MakeRGBImage&&"function"===typeof this.MakeRGBImage&&this.MakeRGBImage()||this.MakePrimaryImage&&"function"===typeof this.MakePrimaryImage&&this.MakePrimaryImage())return this;if(this.rgbFile){var q=n.width/n.zoom;var p=n.height/n.zoom;var t=n.x0;var r=this.offscreen.canvas.height-1-(n.y0+p);r=this.offscreen.context.getImageData(t,r,q,p);if(1===n.zoom)m.img=r;else for(m.img=l.createImageData(n.width,n.height),m=m.img,d=c=0;c<r.height;c++,d++){var u=c*r.width;var v=
+d*n.zoom;for(b=l=0;l<r.width;l++,b++){t=4*(u+l);var y=b*n.zoom;for(e=0;e<n.zoom;e++){var w=Math.floor(v+e);var x=w*n.width;for(w=0;w<n.zoom;w++){var z=Math.floor(y+w);z=4*(x+z);m.data[z]=r.data[t];m.data[z+1]=r.data[t+1];m.data[z+2]=r.data[t+2];m.data[z+3]=r.data[t+3]}}}}return this}m.img&&m.img.width===n.width&&m.img.height===n.height||(m.img=l.createImageData(n.width,n.height));m=m.img;if(!this.psColors)return this;var A=void 0!==this.params.opacity?255*this.params.opacity:void 0!==this.params.alpha?
+this.params.alpha:255;this.maskData&&(this.params.maskInvert?void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.opacity,q=255*this.params.maskOpacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?(r=this.params.alpha2,q=this.params.alpha1):(r=0,q=255):void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.maskOpacity,q=255*this.params.opacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?(r=this.params.alpha1,q=this.params.alpha2):
+(r=255,q=0));var B=Math.max(1,Math.floor(1/n.zoom));var E=n.zoom*B;c=Math.floor(n.y1-1);for(d=0;c>=n.y0;c-=B,d++)for(u=c*this.raw.width,v=d*E,l=Math.floor(n.x0),b=0;l<n.x1;l+=B,b++){if(k){p=g?g.colorData[u+l]:0;var C=f?f.colorData[u+l]:0;var F=h?h.colorData[u+l]:0;if(void 0===p||void 0===C||void 0===F)return a.globalOpts.rgb.active=!1,a.error("RGB images are incompatible. Turning off RGB mode.","",!1),this.mkRGBImage(),this}else t=this.colorData[u+l];this.maskData&&(A=0<this.maskData[u+l]?r:q);y=
+b*E;for(e=0;e<n.zoom;e++)for(w=Math.ceil(v+e),x=w*n.width,w=0;w<n.zoom;w++)if(z=Math.ceil(y+w),z=4*(x+z),z<m.data.length){if(k)m.data[z]=g?g.psColors[p][0]:0,m.data[z+1]=f?f.psColors[C][1]:0,m.data[z+2]=h?h.psColors[F][2]:0;else{if(void 0===this.psColors[t]){var D=sprintf("invalid image access: %s,%s",l,c);a.error(D)}m.data[z]=this.psColors[t][0];m.data[z+1]=this.psColors[t][1];m.data[z+2]=this.psColors[t][2]}m.data[z+3]=A}}return this};a.Image.prototype.blendImage=function(c){for(var b=[],d=0;d<
+arguments.length;++d)b[d-0]=arguments[d];var e=$jscomp.makeIterator(b);d=e.next().value;var g=e.next().value;e=e.next().value;var f=/normal|multiply|screen|overlay|darken|lighten|color-dodge|color-burn|hard-light|soft-light|difference|exclusion|hue|saturation|color|luminosity|clear|copy|source-over|destination-over|source-in|destination-in|source-out|destination-out|source-atop|destination-atop|xor|lighter/i;if(0===b.length)return this.blend;if(!0===d||!1===d||"true"===d||"false"===d)return"true"===
+d?d=!0:"false"===d&&(d=!1),this.blend.active=d,this.xeqPlugins("image","onimageblend"),this.display.blendMode&&this.displayImage(),this;if(a.notNull(d)||a.notNull(g))a.notNull(d)&&(f.test(d)||a.error("invalid composite/blend operation: "+d),this.blend.mode=d),a.notNull(g)&&("string"===typeof g?g=parseFloat(g):"number"!==typeof g&&a.error("invalid opacity: "+g),this.blend.opacity=Math.min(Math.max(g,0),1)),a.notNull(e)&&("true"===e?e=!0:"false"===e&&(e=!1),this.blend.active=e),this.xeqPlugins("image",
+"onimageblend"),this.display.blendMode&&this.blend.active&&this.displayImage();return this};a.Image.prototype.calcDisplayOffsets=function(c){var b=this.rgb.sect;this.ix=(this.display.canvas.width-this.rgb.img.width)/2;this.iy=(this.display.canvas.height-this.rgb.img.height)/2;a.notNull(b.ix)&&(this.ix-=b.ix/2);a.notNull(b.iy)&&(this.iy+=b.iy/2);this.ix=Math.floor(this.ix);this.iy=Math.floor(this.iy);if(c&&this.wcsAlign()){var d=this.wcsim;c=d.rgb.sect;d=a.pix2pix(d,this,d.getPan());var e=a.globalOpts.panWithinDisplay;
+a.globalOpts.panWithinDisplay=!0;this.tmp.ozoom=this.rgb.sect.ozoom;this.mkSection(d.x,d.y,c.zoom);this.rgb.sect.ozoom=this.tmp.ozoom;delete this.tmp.ozoom;a.globalOpts.panWithinDisplay=e;this.ix-=(b.xcen-(b.x0+b.x1)/2)*c.zoom;this.iy+=(b.ycen-(b.y0+b.y1)/2)*c.zoom}return this};a.Image.prototype.putImage=function(c){var b=this,d=this.rgb,e=this.display.context,g=function(c){if(!b.offscreenRGB){var d=document.createElement("canvas");var e=d.getContext("2d");d.width=c.width;d.height=c.height;a.ANTIALIAS||
+(e.imageSmoothingEnabled=!1,e.webkitImageSmoothingEnabled=!1,e.msImageSmoothingEnabled=!1);e.putImageData(c,0,0);b.offscreenRGB={canvas:d,context:e}}return b.offscreenRGB.canvas};c=c||{};"reproject"===this.rawDataLayer()&&c.wcsim&&(this.wcsim=c.wcsim,this.wcsim.isawcsim=!0);this.calcDisplayOffsets(!0);a.notNull(c.opacity)||a.notNull(c.blend)?(e.save(),void 0!==c.opacity&&(e.globalAlpha=c.opacity),void 0!==c.blend&&(e.globalCompositeOperation=c.blend),e.drawImage(g(d.img),this.ix,this.iy),e.restore()):
+e.putImageData(d.img,this.ix,this.iy);return this};a.Image.prototype.displayImage=function(c,b){var d=0;var e=[],g={};if(!1===c)return this.displayMode=!1,this;!0===c&&(this.displayMode=!0,c="all");if(!this.displayMode)return this;"object"===typeof c&&(b=c,c=null);c?"all"===c?(c="colors,scaled,rgb,display,plugins",g.notify=!0):"rgbonly"===c?(c="rgb,nodisplay",g.notify=!0):"display"===c&&(g.notify=!0):c="rgb";c.split(",").forEach(function(a,b,c){a=a.trim();g[a]=!0;switch(a){case "colors":g.scaled=
+!0;g.rgb=!0;break;case "scaled":g.rgb=!0}});g.display=!0;g.plugins=!0;this.rgbFile&&(g.colors=!1,g.scaled=!1);b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse displayImage opts: "+b,h)}if(this.display.blendMode&&!1!==b.blendMode)for(c=0;c<a.images.length;c++){var f=a.images[c];f.display===this.display&&f.blend.active&&(e.push(f),d++)}g.colors&&(this.mkColorData(),this.offscreenRGB=null);g.scaled&&(this.mkColorCells(),this.mkScaledCells(),this.offscreenRGB=null);if(g.rgb&&
+(this.mkRGBImage(),this.offscreenRGB=null,d))for(c=e.length-1;0<=c;c--)f=e[c],f.mkRGBImage(),f.offscreenRGB=null;if(g.nodisplay)return this;if(g.display){this.display.context.clear();if(d){for(c=e.length-1;0<=c;c--)e[c].calcDisplayOffsets(!1);for(c=e.length-1;0<=c;c--)f=e[c],d={wcsim:b.wcsim,blend:f.blend.mode,opacity:f.blend.opacity},f.putImage(d),f===this&&f.displayShapeLayers()}else this.putImage(b),this.displayShapeLayers();this.display.image=this;if(this.delayedShapes&&this.delayedShapes.length){for(;this.delayedShapes.length;)b=
+this.delayedShapes.shift(),this.addShapes(b.layer,b.shape,b.opts);delete this.delayedShapes}}this.xeqPlugins("image","onimagedisplay");return this};a.Image.prototype.refreshImage=function(c,b){b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse refresh opts: "+b,h)}if(c&&"string"!==typeof c){b.rawid=b.rawid||a.RAWID0;"function"===typeof b&&(b={onrefresh:b});!b.onrefresh&&a.imageOpts.onrefresh&&(b.onrefresh=a.imageOpts.onrefresh);if(!b.resetSection){var d=this.imageToLogicalPos({x:this.rgb.sect.xcen,
+y:this.rgb.sect.ycen});if(this.raw.wcs&&0<this.raw.wcs){var e=a.pix2wcs(this.raw.wcs,this.rgb.sect.xcen,this.rgb.sect.ycen);var g=e.trim().split(/\s+/);var f=a.saostrtod(g[0]);":"===String.fromCharCode(a.saodtype())&&"galactic"!==this.params.wcssys&&"ecliptic"!==this.params.wcssys&&(f*=15);g=a.saostrtod(g[1])}}e=this.rgb.sect.zoom;this.binning.obin=this.binning.bin;this.mkRawDataFromHDU(c,b);b.resetSection?(this.mkSection(),this.mkSection(e)):(this.raw.wcs&&0<this.raw.wcs&&a.notNull(f)&&a.notNull(g)?
+(g=a.wcs2pix(this.raw.wcs,f,g).trim().split(/ +/),c={x:parseFloat(g[0]),y:parseFloat(g[1])}):c=this.logicalToImagePos({x:d.x,y:d.y}),0<c.x&&c.x<this.raw.width&&0<c.y&&c.y<this.raw.height?this.mkSection(c.x,c.y,e):(this.mkSection(),this.mkSection(e)));this.displayImage("colors",b);this.reFlipRot90();this.notifyHelper();if(b.refreshRegions||b.resetSection||this.binning.obin!==this.binning.bin)this.refreshLayers(),this.updateShapes("regions","all","binning");this.xeqPlugins("image","onimagerefresh");
+a.waiting(!1);if(b.onrefresh)try{a.xeqByName(b.onrefresh,window,this)}catch(h){a.error("in image refresh callback",h)}return this}b.onrefresh&&(b.onload=b.onrefresh,delete b.onrefresh);b.refresh=this;e=document.domain?c||this.file:c||this.fitsFile||this.file;a.Load(e,b,{display:this.display})};a.Image.prototype.fileDimensions=function(){if(this.parent&&"BINTABLE"!==this.parent.raw.header.XTENSION){var a=this.parent.raw.header.TABDIM1?this.parent.raw.header.TABDIM1:this.parent.raw.header.NAXIS1;var b=
+this.parent.raw.header.TABDIM2?this.parent.raw.header.TABDIM2:this.parent.raw.header.NAXIS2}else a=this.raw.header.TABDIM1?this.raw.header.TABDIM1:this.raw.header.NAXIS1,b=this.raw.header.TABDIM2?this.raw.header.TABDIM2:this.raw.header.NAXIS2;return{xdim:a,ydim:b}};a.Image.prototype.maybePhysicalToImage=function(c){if("image"===this.imtab&&this.parent&&this.parent.lcs&&c.x&&c.y){c={x:c.x,y:c.y};c=a.Image.prototype.logicalToImagePos.call(this.parent,c,"ophysical");var b={x:Math.floor(c.x+.5),y:Math.floor(c.y+
+.5)}}return b};a.Image.prototype.displaySection=function(c,b){var d=this,e,g,f,h,k,l,m,n=function(b,c,d){var e;a.isNull(b)?a.isNull(c)||(e=c):e=b;return e||d},q=function(c,e){var f="";l=$.extend(!0,{},e||{});a.isNull(l.refreshRegions)&&(l.refreshRegions=!0);a.isNull(l.resetSection)&&(l.resetSection=!0);!1!==l.waiting&&a.waiting(!0,d.display);c.fits.extname?f="["+c.fits.extname+"]":c.fits.extnum&&0<c.fits.extnum?f="["+c.fits.extnum+"]":d.parent&&(d.parent.extname?f="["+d.parent.extname+"]":d.parent.extnum&&
+0<d.parent.extnum&&(f="["+d.parent.extnum+"]"));f&&(l.id=d.id.replace(/\[.*\]/,"")+f,l.file=d.file.replace(/\[.*\]/,"")+f);if(l.separate){delete l.xcen;delete l.ycen;if("string"===typeof l.separate){f=l.separate.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e)}else l.display=d.display;"parentFile"===g&&d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:d.fitsFile);h=d.listRegions("all",{mode:1,saveid:!0});b=l.ondisplaysection||
+l.onrefresh||b;k=new a.Image(c,l,b);k.binning.obin=k.binning.bin;h&&!1!==l.refreshRegions&&k.addShapes("regions",h,{restoreid:!0});d.reFlipRot90();k.setStatus("displaySection","complete")}else if("string"===typeof l.refresh){delete l.xcen;delete l.ycen;f=l.refresh.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e);l.display.image?(l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||l.onrefresh||b,l.display.image.refreshImage(c,l)):("parentFile"===g&&
+d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:d.fitsFile),h=d.listRegions("all",{mode:1,saveid:!0}),b=l.ondisplaysection||l.onrefresh||b,k=new a.Image(c,l,b),k.binning.obin=k.binning.bin,h&&k.addShapes("regions",h,{restoreid:!0}),d.reFlipRot90())}else l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||l.onrefresh||b,d.refreshImage(c,l);d.setStatus("displaySection","complete");a.waiting(!1)};this.raw&&this.raw.hdu&&this.raw.hdu.fits||a.error("invalid image for displaySection");
+c=c||{};if("full"===c){var p=this.fileDimensions();c={xdim:p.xdim,ydim:p.ydim,xcen:0,ycen:0}}else{if("selected"===c){this.selectShapes("regions","selected",function(a){a=a.pub;var c,e=0,f=0,g=1E6,h=0,k=1E6,m=0,n=a.shape;if(!d.parentFile&&a.lcs){a=a.lcs;var p=a.x;var t=a.y;if(c=d.maybePhysicalToImage({x:p,y:t}))p=c.x,t=c.y}else p=a.x,t=a.y;switch(n){case "annulus":var q=2*a.radii[a.radii.length-1];var r=2*a.radii[a.radii.length-1];break;case "box":q=a.width;r=a.height;break;case "circle":q=2*a.radius;
+r=2*a.radius;break;case "ellipse":q=2*a.r1;r=2*a.r2;break;case "polygon":case "line":for(q=0;q<a.pts.length;q++)e+=a.pts[q].x,f+=a.pts[q].y,a.pts[q].x>h&&(h=a.pts[q].x),a.pts[q].x<g&&(g=a.pts[q].x),a.pts[q].y>m&&(m=a.pts[q].y),a.pts[q].y<k&&(k=a.pts[q].y);a.x=e/a.pts.length;a.y=f/a.pts.length;"line"===a.shape&&2===a.pts.length?(q=Math.sqrt((a.pts[0].x-a.pts[1].x)*(a.pts[0].x-a.pts[1].x)+(a.pts[0].y-a.pts[1].y)*(a.pts[0].y-a.pts[1].y)),r=1):(q=h-g,r=m-k);break;case "text":r=q=10}l={xcen:p,ycen:t,xdim:q,
+ydim:r,from:"virtualFile",separate:!0,refreshRegions:!1,resetSection:!0};d.displaySection(l,b)});return}if("string"===typeof c)try{c=JSON.parse(c)}catch(y){a.error("can't parse section opts: "+c,y)}}var t=c.separate?$.extend(!0,{},this.raw.hdu):this.raw.hdu;(g=c.from)||(g=this.parentFile&&a.helper.connected&&a.helper.js9helper?"parentFile":"virtualFile");if(t.table)p=t.table;else{if("parentFile"===g&&this.raw.header&&a.notNull(this.raw.header.LTM1_1)){var r=1;var u=this.raw.header.LTM1_1}else r=t.bin||
+1,u=1;p={x:this.raw.width/2,y:this.raw.height/2};var v=this.imageToLogicalPos(p);p={};p.bin=Math.floor(r/u+.5);p.xcen=Math.floor(v.x+.5*(p.bin-1));p.ycen=Math.floor(v.y+.5*(p.bin-1));if(r=this.maybePhysicalToImage({x:p.xcen,y:p.ycen}))p.xcen=r.x,p.ycen=r.y;p.xdim=Math.floor(t.naxis1*p.bin);p.ydim=Math.floor(t.naxis2*p.bin);p.filter=this.raw.filter||""}if("string"===typeof c.bin)switch(c.bin.match(/[as]$/)&&(c.binMode=c.bin.slice(-1),c.bin=c.bin.slice(0,-1)),r=p.bin||this.binning.bin,c.bin.charAt(0)){case "*":case "x":case "X":c.bin=
+r*parseInt(c.bin.slice(1),10);break;case "/":c.bin=r/parseInt(c.bin.slice(1),10);break;case "+":c.bin=r+parseInt(c.bin.slice(1),10);break;case "-":c.bin=r-parseInt(c.bin.slice(1),10);break;case "i":case "I":c.bin=2*r;break;case "o":case "O":c.bin=r/2;break;default:a.isNumber(c.bin)?c.bin=parseInt(c.bin,10):a.error("invalid bin for displaySection: "+c.bin)}c.xcen=n(c.xcen,p.xcen,0);c.ycen=n(c.ycen,p.ycen,0);switch(this.imtab){case "table":c.xdim=n(c.xdim,p.xdim,a.fits.options.table.xdim);c.ydim=n(c.ydim,
+p.ydim,a.fits.options.table.ydim);c.bin=n(c.bin,p.bin,a.fits.options.table.bin);break;default:c.xdim=n(c.xdim,p.xdim,a.fits.options.image.xdim),c.ydim=n(c.ydim,p.ydim,a.fits.options.image.ydim),c.bin=n(c.bin,p.bin,a.fits.options.image.bin)}c.binMode=n(c.binMode,p.binMode,a.globalOpts.binMode);"string"===typeof c.bin&&(c.bin.match(/[as]$/)&&(c.binMode=c.bin.slice(-1)),c.bin=parseInt(c.bin,10));c.bin=Math.max(1,c.bin||1);c.filter=n(c.filter,p.filter,"");this.raw.filter=c.filter||"";!1!==c.waiting&&
+a.waiting(!0,this.display);this.setStatus("displaySection","processing");window.setTimeout(function(){switch(g){case "parentFile":e=d.proxyFile;m=[];m.push({name:"xcen",value:c.xcen});delete c.xcen;m.push({name:"ycen",value:c.ycen});delete c.ycen;m.push({name:"xdim",value:c.xdim});m.push({name:"ydim",value:c.ydim});void 0!==c.xdim&&(c.xdim=0);void 0!==c.ydim&&(c.ydim=0);c.binMode&&(c.bin=""+c.bin+c.binMode,delete c.binMode);m.push({name:"bin",value:c.bin});delete c.bin;m.push({name:"filter",value:c.filter||
+""});m.push({name:"slice",value:c.slice||""});delete c.slice;f={id:d.expandMacro("$id"),image:d.file,fits:d.parentFile,rtype:"text"};f.cmd="js9Xeq imsection "+d.parentFile;c.extension&&(f.cmd=f.cmd.replace(/\[.*\]/,""),f.cmd+="["+c.extension+"]",delete c.extension);f.cmd+=d.expandMacro(" $xdim@$xcen,$ydim@$ycen,$bin $filter $slice",m);a.helper.send("imsection",f,function(b){b="object"===typeof b?b:0<=b.search(a.analOpts.epattern)?{stderr:b}:{stdout:b};if(b.stderr)a.error(b.stderr);else if(b.errcode)a.error("in displaySection: "+
+b.errcode);else{var f=b.stdout.split(/\n/);b=a.cleanPath(f[0]);"/"!==b.charAt(0)&&(b=a.InstallDir(b));c.proxyFile=b;e&&e!==c.proxyFile&&d.removeProxyFile(e);if(f[1]){try{var g=JSON.parse(f[1])}catch(z){a.log("couldn't parse imsection as JSON: %s",b),g=null}g&&(c.extname=g.extname,c.extnum=g.extnum,c.hdus=g.hdus,c.parent=g)}f[2]&&(g=a.cleanPath(f[2]),c.parentFile=g);c.ltm2obin=!0;a.fetchURL(b,b,c,function(b){a.cleanupFITSFile(d.raw,!0);!1!==c.waiting&&a.waiting(!0,d.display);a.fits.handleFITSFile(b,
+c,q)})}});break;case "virtualFile":a.cleanupFITSFile(d.raw,!1);a.getFITSImage(t.fits,t,c,function(a){q(a,c)});break;default:a.error("image section cannot be extracted from this data file")}},a.SPINOUT)};a.Image.prototype.displayExtension=function(c,b,d){var e=this,g,f,h=function(c){var f=$.extend(!0,{},b);f.separate=!0;if(c===e.hdus.length){if(d)try{a.xeqByName(d,window,e)}catch(p){a.error("in displayExtension callback",p,!1)}}else{var g=e.hdus[c];"image"===g.type&&2<=g.naxis?e.displayExtension(g.hdu,
+f,function(){h(c+1)}):h(c+1)}};b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(m){a.error("can't parse extension opts: "+b,m)}b.waiting=!1;this.hdus||a.error("no FITS HDUs found for displayExtension()");a.isNull(c)&&a.error("missing extname/extnum for displayExtension()");if("all"===c)h(0);else{if("string"===typeof c){b.extension=c;var k=c.toLowerCase();for(f=g=0;g<this.hdus.length;g++)if(this.hdus[g].name&&this.hdus[g].name.toLowerCase()===k){f++;break}f||a.error("no FITS HDU "+c+" for displayExtension()")}else"number"===
+typeof c&&(b.extension=c,this.hdus[c]?k=this.hdus[c].name||c.toString():a.error("no FITS HDU "+c+" for displayExtension()"));if(b.separate){g="["+k+"]";c=this.id.replace(/\[.*\]/,"")+g;for(f=g=0;g<a.images.length;g++){var l=a.images[g];if(c===l.id&&0<$("#"+l.display.id).length&&this.display.id===l.display.id){f++;break}}if(f){l.displayImage("display",b);l.display.clearMessage();if(d)try{a.xeqByName(d,window,this)}catch(m){a.error("in displayExtension callback",m,!1)}return}}b.separate||a.cleanupFITSFile(this.raw,
+!1);this.displaySection(b,d);return this}};a.Image.prototype.displaySlice=function(c,b,d){b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(g){a.error("can't parse slice opts: "+b,g)}b.waiting=!1;void 0===c&&a.error("missing slice for displaySlice()");if("all"===c&&3===this.raw.header.NAXIS)for(this.displaySlice(1,e,d),c=2;c<=this.raw.header.NAXIS3;c++){var e=$.extend(!0,{},b,{separate:!0});this.displaySlice(c,e,d)}else a.isNumber(c)?b.slice="*:*:"+c:b.slice=c,a.cleanupFITSFile(this.raw,!1),
+this.displaySection(b,d);return this};a.Image.prototype.toArray=function(c){var b,d,e=this.raw.data.buffer;c=c||{};c.simple=!0;c=a.raw2FITS(this.raw,c);var g=2880-c.length%2880;2880===g&&(g=0);for(b=0;b<g;b++)c+=" ";g=2880-e.byteLength%2880;2880===g&&(g=0);b=new ArrayBuffer(c.length+e.byteLength+g);var f=new Uint8Array(b);for(b=0;b<c.length;b++)f[b]=c.charCodeAt(b);if(0<(new Int8Array((new Int16Array([1])).buffer))[0]){var h=c.length;var k=Math.abs(this.raw.bitpix)/8;var l=new Uint8Array(e);for(b=
+0;b<l.byteLength;b+=k){var m=b+k-1;for(d=0;d<k;m--,d++)f[h++]=l[m]}}else f.set(new Uint8Array(e),c.length);h=c.length+e.byteLength;for(b=0;b<g;b++)f[h++]=0;return f};a.Image.prototype.wcsAlign=function(){return this.wcsim&&this.params.wcsalign&&this.display===this.wcsim.display};a.Image.prototype.getPan=function(){var c=this.rgb.sect,b=(c.x0+c.x1)/2,d=(c.y0+c.y1)/2;a.notNull(c.ix)&&(b+=c.ix/(2*c.zoom));a.notNull(c.iy)&&(d+=c.iy/(2*c.zoom));return{x:b,y:d,ox:c.xcen,oy:c.ycen,x0:c.x0,y0:c.y0,x1:c.x1,
+y1:c.y1,ix:c.ix||0,iy:c.iy||0}};a.Image.prototype.setPan=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];var e;var g=$jscomp.makeIterator(b);d=g.next().value;g=g.next().value;if(!(0<=$.inArray("pan",this.params.disable))){0===b.length&&(d=this.raw.width/2,g=this.raw.height/2);if(1===b.length&&"string"===typeof d)if("mouse"===d&&this.ipos)d=this.ipos.x,g=this.ipos.y;else try{d=JSON.parse(d)}catch(m){a.error("can't parse setPan JSON: "+d,m)}if("object"===typeof d){b=d;a.notNull(b.x)&&
+a.notNull(b.y)&&(d=b.x,g=b.y);a.notNull(b.px)&&a.notNull(b.py)&&(g=this.logicalToImagePos({x:b.px,y:b.py}),d=g.x,g=g.y);if("string"===typeof b.wcs){var f=b.wcs.trim().split(/ +/);b.ra=f[0];b.dec=f[1];3<=f.length&&(b.wcssys=f[2])}if(a.notNull(b.ra)&&a.notNull(b.dec)&&0<this.raw.wcs){if(b.wcssys){var h=this.getWCSSys();var k=a.globalOpts.xeqPlugins;a.globalOpts.xeqPlugins=!1;this.setWCSSys(b.wcssys)}"string"===typeof b.ra&&(b.ra=a.saostrtod(b.ra),":"===String.fromCharCode(a.saodtype())&&"galactic"!==
+this.params.wcssys&&"ecliptic"!==this.params.wcssys&&(b.ra*=15));"string"===typeof b.dec&&(b.dec=a.saostrtod(b.dec));f=a.wcs2pix(this.raw.wcs,b.ra,b.dec).trim().split(/ +/);d=parseFloat(f[0]);g=parseFloat(f[1]);h&&(this.setWCSSys(h),a.globalOpts.xeqPlugins=k)}}a.isNumber(d)&&a.isNumber(g)||a.error("invalid input for setPan: "+d+" "+g);if(this.wcsAlign()||this.isawcsim){var l=a.globalOpts.panWithinDisplay;a.globalOpts.panWithinDisplay=!0}this.mkSection(d,g);if(this.wcsAlign()||this.isawcsim){for(h=
 0;h<a.images.length;h++)k=a.images[h],k!==this&&k.display===this.display&&(k.wcsim===this||this.wcsim===k||k.wcsim&&k.wcsim===this.wcsim)&&(k.params.wcsalign||this.params.wcsalign)&&(b=a.pix2pix(this,k,{x:d,y:g}),k.mkSection(b.x,b.y));a.globalOpts.panWithinDisplay=l}this.displayImage("rgb");for(e in this.layers)this.layers.hasOwnProperty(e)&&this.layers[e].show&&this.layers[e].opts.panzoom&&this.refreshShapes(e);a.globalOpts.extendedPlugins&&this.xeqPlugins("image","onsetpan");return this}};a.Image.prototype.getZoom=
 function(){return this.rgb.sect.zoom};a.Image.prototype.parseZoom=function(a){var b=this.rgb.sect.zoom;switch(typeof a){case "string":switch(a.charAt(0)){case "*":case "x":case "X":a=b*parseFloat(a.slice(1));break;case "/":a=b/parseFloat(a.slice(1));break;case "I":case "i":a=2*b;break;case "O":case "o":a=b/2;break;case "T":case "t":a=Math.min(this.display.width/this.raw.width,this.display.height/this.raw.height);a=Math.round(1E6*(a+1E-7))/1E6;break;default:a=parseFloat(a)}break;case "number":break;
 default:return}return a};a.Image.prototype.setZoom=function(c){var b,d;if(!(0<=$.inArray("zoom",this.params.disable))){(b=this.parseZoom(c))||a.error("invalid input for setZoom: "+c);if(this.wcsAlign()||this.isawcsim){var e=a.globalOpts.panWithinDisplay;a.globalOpts.panWithinDisplay=!0}this.mkSection(b);if(this.wcsAlign()||this.isawcsim){for(c=0;c<a.images.length;c++){var g=a.images[c];if(g!==this&&g.display===this.display&&(g.wcsim===this||this.wcsim===g||g.wcsim&&g.wcsim===this.wcsim)&&(g.params.wcsalign||
@@ -4815,8 +4815,8 @@ b.addcr&&(g+="\n")),a.notNull(k.LTM2_2)&&!f.LTM2_2&&(g+=h(null,"LTM2_2",k.LTM2_2
 "BITPIX",d,"bits/pixel"),b.addcr&&(g+="\n");for(m in c)if(c.hasOwnProperty(m)&&"js9Protocol"!==m&&"js9Endian"!==m&&"SIMPLE"!==m&&"simple"!==m&&"BITPIX"!==m&&"bitpix"!==m){"END"===m&&(e=!0);if(m.match(/HISTORY__[0-9]+/))g+=sprintf("HISTORY %-72s",c[m]);else if(m.match(/COMMENT__[0-9]+/))g+=sprintf("COMMENT %-72s",c[m]);else{d=c[m];!0===d?d="T":!1===d?d="F":""===d?d="' '":Number.isNaN(d)?d="NaN":a.isNumber(d)||"'"===d.charAt(0)||(d="'"+d+"'");h=sprintf("%-8s= %20s",m,d);l=80-h.length;if(0<l)for(d=0;d<
 l;d++)h+=" ";g+=h}b.addcr&&(g+="\n")}}e||(g+=sprintf("%-8s%-72s","END"," "),b.addcr&&(g+="\n"));return g};a.hdus2Str=function(a){var b,c="";if(!a)return c;for(b=0;b<a.length;b++){var e=a[b];var g=e.name?e.name:0===b?"Primary":"N/A";c+=sprintf("<b>#%d</b>:&#09;<b>name</b>: %s&#09;<b>type</b>: %s",e.hdu,g,e.type);switch(e.type){case "image":c+=sprintf("&#09;<b>bitpix</b>: %d&#09;<b>naxis</b>: %d",e.bitpix,e.naxis);if(e.naxes.length){c+="&#09;<b>axes</b>: [";for(g=0;g<e.naxes.length;g++)c+=sprintf("%d",
 e.naxes[g]),g!==e.naxes.length-1&&(c+=", ");c+="]"}break;case "table":case "ascii":g="&#09;";9>=e.rows&&(g+="&#09;");c+=sprintf("&#09;<b>rows</b>: %d%s<b>cols</b>: [",e.rows,g);for(g=0;g<e.cols.length;g++)c+=""+e.cols[g].name,g!==e.cols.length-1&&(c+=", ");c+="]"}c+="\n\n"}return c};CanvasRenderingContext2D.prototype.clear=CanvasRenderingContext2D.prototype.clear||function(a){a&&(this.save(),this.setTransform(1,0,0,1,0,0));this.clearRect(0,0,this.canvas.width,this.canvas.height);a&&this.restore()};
-a.tooltip=function(c,b,d,e,g,f){var h=function(b){return b.replace(/\$([a-zA-Z0-9_./]+)/g,function(b,c,d){c=c.split(".");switch(c[0]){case "im":d=e;break;case "xreg":d=g;break;case "evt":d=f;break;default:return b}for(b=1;b<c.length;b++)d=d[c[b]],d=a.isNumber(d)?d.toFixed(6):d;void 0===d&&(d="");return d})};d?(d=h(d),e.display.tooltip.html(d),h=e.display.tooltip.width(),d=e.display.tooltip.height(),c=Math.max(2,Math.min(c,e.display.width-(h+10))),b=Math.max(2,Math.min(b,e.display.height-(d+10))),
-e.display.tooltip.css({left:c,top:b,display:"inline-block"})):e.display.tooltip.html("").css({left:-9999,display:"none"})};a.xeqByName=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];d=$jscomp.makeIterator(b);var e=d.next().value;d=d.next().value;b=b.slice(2);var g=typeof e;switch(g){case "function":return e.apply(d,b);case "string":g=e.split(".");var f=g.pop();for(e=0;e<g.length;e++)d=d[g[e]];return d[f].apply(d,$jscomp.arrayFromIterable(b));default:a.error("unknown func type: "+
+a.tooltip=function(c,b,d,e,g,f){var h=function(b){return b.replace(/\$([a-zA-Z0-9_./]+)/g,function(b,c,d){c=c.split(".");switch(c[0]){case "im":d=e;break;case "xreg":d=g;break;case "evt":d=f;break;case "data":d=g.data;break;default:return b}for(b=1;b<c.length;b++)d=d[c[b]],d=a.isNumber(d)?d.toFixed(6):d;void 0===d&&(d="");return d})};d?(d=h(d),e.display.tooltip.html(d),h=e.display.tooltip.width(),d=e.display.tooltip.height(),c=Math.max(2,Math.min(c,e.display.width-(h+10))),b=Math.max(2,Math.min(b,
+e.display.height-(d+10))),e.display.tooltip.css({left:c,top:b,display:"inline-block"})):e.display.tooltip.html("").css({left:-9999,display:"none"})};a.xeqByName=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];d=$jscomp.makeIterator(b);var e=d.next().value;d=d.next().value;b=b.slice(2);var g=typeof e;switch(g){case "function":return e.apply(d,b);case "string":g=e.split(".");var f=g.pop();for(e=0;e<g.length;e++)d=d[g[e]];return d[f].apply(d,$jscomp.arrayFromIterable(b));default:a.error("unknown func type: "+
 g)}};a.varByName=function(c,b){b=b||a;var d=c.split(".");var e=d.pop();for(c=0;c<d.length;c++)if(b=b[d[c]],!b)return null;return b[e]};a.mergePrefs=function(c){var b;for(b in c)if(c.hasOwnProperty(b)&&a.hasOwnProperty(b)){var d=typeof a[b];var e=typeof c[b];if(d===e||"string"===e)switch(d){case "object":$.isArray(c[b])?a[b]=c[b]:$.extend(a[b],c[b]);break;case "number":case "string":a[b]=c[b]}}};a.loadPrefs=function(c,b){$.ajax({url:c,cache:!1,dataType:"json",mimeType:"application/json",async:!1,success:function(b){a.mergePrefs(b)},
 error:function(d,e,g){b&&(a.CHROMEFILEWARNING&&"Chrome"===a.BROWSER[0]&&""===document.domain&&g&&g.message&&g.message.match(/Failed to execute 'send' on 'XMLHttpRequest'/)?(alert("When using the file:// URI, Chrome must be run with the --allow-file-access-from-files switch to permit JS9 to access the preference file (and data files)."),a.CHROMEFILEWARNING=!1):a.log("JS9 prefs file not available: %s",c))}})};a.isTypedArray=function(a){a=Object.prototype.toString.call(a);return{"[object Int8Array]":!0,
 "[object Uint8Array]":!0,"[object Uint8ClampedArray]":!0,"[object Int16Array]":!0,"[object Uint16Array]":!0,"[object Int32Array]":!0,"[object Uint32Array]":!0,"[object Float32Array]":!0,"[object Float64Array]":!0}.hasOwnProperty(a)};a.Starbase=function(a,b){var c,e,g=0;var f=function(a){var b;for(b=0;b<a.length;b++)if(null===a[b].match(/^-+$/))return 0;return b};var h=function(a){return a};this.head={};this.convFuncs=[];this.data=[];this.delims=[];if(a){b=b||{};a=a.replace(/\s+$/,"").split("\n");
diff --git a/js9.js b/js9.js
index b79f4b57..270f1ae3 100644
--- a/js9.js
+++ b/js9.js
@@ -251,7 +251,7 @@ JS9.globalOpts = {
 		 wcssys: "ICRS",                      // wcs system
 		 skip: "#\n",                         // skip # and blank lines
 		 save: true,                          // save cat cols in shapes
-		 tooltip: "$xreg.data.ra $xreg.data.dec"}, // tooltip format
+		 tooltip: "$data.ra $data.dec"}, // tooltip format
     topColormaps: ["grey", "heat", "cool", "viridis", "magma", "sls", "red", "green", "blue"], // toplevel colormaps
     infoBox: ["file", "object", "wcsfov", "wcscen", "wcspos", "impos", "physpos", "value", "regions", "progress"],
     infoBoxResize: true,                              // is size based on wcs?
@@ -19554,6 +19554,9 @@ JS9.tooltip = function(x, y, fmt, im, xreg, evt){
 	    case "evt":
 		val = evt;
 		break;
+	    case "data":
+		val = xreg.data;
+		break;
 	    default:
 		return m;
 	    }
diff --git a/js9.min.js b/js9.min.js
index 6d2c4d3c..7dc16bdd 100644
--- a/js9.min.js
+++ b/js9.min.js
@@ -22,113 +22,113 @@ corsURL:"params/loadcors.html",proxyURL:"params/loadproxy.html",loadProxy:!1,ims
 imexamLineHeight:1,copyWcsPosFormat:"$ra $dec $sys",floatPrecision:6,mouseActions:["display value/position","change contrast/bias","pan the image"],touchActions:["display value/position","change contrast/bias","pan the image"],keyboardActions:{b:"toggle selected region: source/background",c:"toggle crosshair",d:"send selected region to back",e:"toggle selected region: include/exclude","M-e":"edit selected region",i:"refresh image",I:"display full image","M-i":"display selected cutouts","M-k":"toggle keyboard actions plugin",
 l:"toggle active shape layers","M-l":"new JS9 light window",m:"pan to mouse position","M-m":"toggle mouse/touch plugin","M-o":"open local file",P:"paste regions from local clipboard",p:"paste regions to current position",u:"undo remove of region(s)","M-,":"toggle preferences plugin","M-p":"toggle preferences plugin",r:"copy selected region to clipboard",R:"copy all regions to clipboard",s:"select region",S:"select all regions","M-s":"toggle shape layers plugin",x:"flip image around x axis",y:"flip image around y axis",
 9:"rotate image by 90 degrees","/":"copy wcs position to clipboard","?":"copy value and position to clipboard",0:"reset zoom","=":"zoom in","+":"zoom in","-":"zoom out","^":"raise region layer to top",">":"display next image","<":"display previous image","delete":"remove selected region",leftArrow:"move region/position left",upArrow:"move region/position up",rightArrow:"move region/position right",downArrow:"move region/position down"},mousetouchZoom:!1,metaClickPan:!0,toolbarTooltips:!1,centerDivs:["JS9Menubar"],
-resizeDivs:["JS9Menubar","JS9Colorbar","JS9Toolbar"],pinchWait:8,pinchThresh:6,xeqPlugins:!0,extendedPlugins:!0,intensivePlugins:!1,dynamicSelect:"click",dynamicHighlight:!0,corsProxy:"https://js9.si.edu/cgi-bin/CORS-proxy.cgi",simbadProxy:"https://js9.si.edu/cgi-bin/simbad-proxy.cgi",catalogs:{ras:["RA","_RAJ2000","RAJ2000"],decs:["Dec","_DEJ2000","DEJ2000"],shape:"circle",color:"yellow",width:7,height:7,radius:3.5,r1:5,r2:3.5,wcssys:"ICRS",skip:"#\n",save:!0,tooltip:"$xreg.data.ra $xreg.data.dec"},
-topColormaps:"grey heat cool viridis magma sls red green blue".split(" "),infoBox:"file object wcsfov wcscen wcspos impos physpos value regions progress".split(" "),infoBoxResize:!0,menuBar:"file edit view zoom scale color region wcs analysis help".split(" "),menubarStyle:"classic",userMenus:!1,userMenuDivider:"&nbsp;&nbsp;&nbsp;",imagesFileSubmenu:5,toolBar:"annulus box circle ellipse line polygon text linear log zoom+ zoom- zoom1".split(" "),syncOps:"colormap contrastbias pan regions scale wcs zoom".split(" "),
-syncReciprocate:!0,hiddenPluginDivs:[],separate:{layout:"auto",leftMargin:10,topMargin:10},imageTemplates:".fits,.fts,.png,.jpg,.jpeg,.fz,.ftz",wcsUnits:{FK4:"sexagesimal",FK5:"sexagesimal",ICRS:"sexagesimal",galactic:"degrees",ecliptic:"degrees",linear:"degrees",physical:"pixels",image:"pixels"},regionTemplates:".reg",sessionTemplates:".ses,.js9ses",colormapTemplates:".cmap",catalogTemplates:".cat,.tab",localTemplates:".fits,.fts",controlsMatchRegion:!1,internalColorPicker:!0,newWindowWidth:530,
-newWindowHeight:625,debug:0};a.desktopOpts={currentPath:!0,sessionPath:!0};a.imageOpts={inherit:!1,contrast:1,bias:.5,invert:!1,exp:1E3,colormap:"grey",scale:"linear",scaleclipping:"dataminmax",scalemin:Number.NaN,scalemax:Number.NaN,flip:"none",rot90:0,zscalecontrast:.25,zscalesamples:600,zscaleline:120,wcssys:"native",lcs:"physical",valpos:!0,opacity:1,sigma:"none",maskOpacity:.4,alpha:255,alpha1:100,zoom:1,zooms:6,topZooms:2,nancolor:"#000000",wcsalign:!0,rotationMode:"relative",crosshair:!1,disable:[],
-ltvbug:!1,listonchange:!1,whichonchange:"selected"};a.regionOpts={};a.catalogOpts={};a.crosshairOpts={};a.gridOpts={};a.emscriptenOpts={};a.blendOpts={active:!0,mode:"screen",opacity:1};a.analOpts={epattern:/^(ERROR:[^\n]*)\n/,dpathURL:"params/datapath.html",fpathURL:"params/filepath.html"};a.lightOpts={nclick:0,dhtml:{top:".dhtmlwindow",drag:".drag-contentarea",dragBar:"drag-handle",format:"width=%spx,height=%spx,center=1,resize=%s,scrolling=0",textWin:"width=830px,height=400px,center=1,resize=1,scrolling=1",
-plotWin:"width=830px,height=420px,center=1,resize=1,scrolling=1",dpathWin:"width=830px,height=175px,center=1,resize=1,scrolling=1",lcloseWin:"width=512px,height=190px,center=1,resize=1,scrolling=1",paramWin:"width=830px,height=235px,center=1,resize=1,scrolling=1",regWin0:"width=600px,height=72px,center=1,resize=1,scrolling=1",regWin:"width=600px,height=235px,center=1,resize=1,scrolling=1",imageWin:"width=512px,height=598px,center=1,resize=1,scrolling=1",lineWin:"width=400px,height=60px,center=1,resize=1,scrolling=1"},
-lcloseURL:"params/lightclose.html"};a.textColorOpts={regions:"#00FF00",info:"#00FF00",inimage:"#000000"};a.plotOpts={annotate:!1,annotateColor:"#FF0000",color:"blue",zoomStack:{enabled:!0},selection:{mode:"xy"},series:{clickable:!0,hoverable:!0,lines:{show:!0},points:{show:!1}},legend:{backgroundColor:null,backgroundOpacity:0},xaxis:{autorange:!0},yaxis:{autorange:!0}};a.helpOpts={user:{heading:"JS9Help",type:"help",url:"user.html",title:"User Manual"},install:{heading:"JS9Help",type:"help",url:"install.html",
-title:"Installing JS9"},webpage:{heading:"JS9Help",type:"help",url:"webpage.html",title:"Adding JS9 to a Web Page"},yourdata:{heading:"JS9Help",type:"help",url:"yourdata.html",title:"Adding Data to a Web Page"},localtasks:{heading:"JS9Help",type:"help",url:"localtasks.html",title:"Adding Local Analysis Tasks and Plugins"},helper:{heading:"JS9Help",type:"help",url:"helper.html",title:"Adding Server-side Analysis Tasks"},serverside:{heading:"JS9Help",type:"help",url:"serverside.html",title:"Server-side Analysis with JS9"},
-publicapi:{heading:"JS9Help",type:"help",url:"publicapi.html",title:"The JS9 Public API"},extmsg:{heading:"JS9Help",type:"help",url:"extmsg.html",title:"External Messaging"},desktop:{heading:"JS9Help",type:"help",url:"desktop.html",title:"JS9 on the Desktop"},python:{heading:"JS9Help",type:"help",url:"python.html",title:"JS9 with Python and Jupyter"},archives:{heading:"JS9Help",type:"help",url:"archives.html",title:"Accessing Data Archives"},preferences:{heading:"JS9Help",type:"help",url:"preferences.html",
-title:"Setting Site Preferences"},regions:{heading:"JS9Help",type:"help",url:"regions.html",title:"Regions Format"},changelog:{heading:"JS9Help",type:"help",url:"changelog.html",title:"ChangeLog"},repfile:{heading:"JS9Help",type:"help",url:"repfile.html",title:"Dealing with Large Files"},memory:{heading:"JS9Help",type:"help",url:"memory.html",title:"Dealing with Memory Limitations"},issues:{heading:"JS9Help",type:"help",url:"knownissues.html",title:"Known Issues"}};a.images=[];a.displays=[];a.colormaps=
-[];a.commands=[];a.plugins=[];a.preloads=[];a.auxFiles=[];a.supermenus=[];a.publics={};a.helper={};a.fits={};a.userOpts={};a.preloadwaiting={};a.scales="linear log histeq power sqrt squared asinh sinh".split(" ");a.wcssyss="FK4 FK5 ICRS galactic ecliptic native image physical".split(" ");a.wcsunitss=["degrees","sexagesimal","pixels"];a.bugs={};a.bugs.hide_menu=!1;"Firefox"===a.BROWSER[0]&&0<=a.BROWSER[2].search(/Linux/)&&(a.bugs.firefox_linux=!0);if("Chrome"===a.BROWSER[0]||"Safari"===a.BROWSER[0])a.bugs.webkit_resize=
-!0;"Chrome"!==a.BROWSER[0]&&(a.globalOpts.imageTemplates+=",.gz");/iPad|iPhone|iPod/.test(navigator.platform)&&/11_2_(?:[2-9])/.test(navigator.userAgent)&&(a.globalOpts.useWasm=!1);a.BROWSER[3]&&(a.globalOpts.maxMemory=Math.min(a.globalOpts.maxMemory,35E7),a.globalOpts.table.xdim=2048,a.globalOpts.table.ydim=2048,a.globalOpts.image.xdim=2048,a.globalOpts.image.ydim=2048,a.imageOpts.crosshair=!1,a.globalOpts.reproj={xdim:2048,ydim:2048});window.hasOwnProperty("Jupyter")&&(a.globalOpts.useWasm=!1);
-if(window.isElectron){"Chrome"===a.BROWSER[0]&&66<=parseFloat(a.BROWSER[1])&&(a.globalOpts.allowFileWasm=!0);if(!window.electronVersion||5>parseInt(window.electronVersion,10))a.globalOpts.internalColorPicker=!1;a.hasNode="object"===typeof process&&"function"===typeof require;a.hasNode&&(a.localMount=require("os").hostname()||"localAccess");window.multiElectron&&(a.globalOpts.localStorage=!1)}a.Image=function(c,b,d){var e=this,g=null,f=0,h=0,k=function(b){b=b||{};a.isNull(b.scaleclipping)?"zscale"===
-e.params.scaleclipping?e.zscale(!0):"zmax"===e.params.scaleclipping&&e.zscale("zmax"):"zscale"===b.scaleclipping?e.zscale(!0):"zmax"===b.scaleclipping&&e.zscale("zmax");a.notNull(b.scalemin)&&(e.params.scalemin=b.scalemin);a.notNull(b.scalemax)&&(e.params.scalemax=b.scalemax)},l=function(b){var c,d=a.globalOpts.imopts,f=a.globalOpts.imcmap,h=a.globalOpts.alerts;e.display.clearMessage();a.images.push(e);e.notifyHelper();e.showShapeLayer("regions",!0,{local:!0});g&&g.regions&&e.addShapes("regions",
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-"");if(a.preloadwaiting[c]||a.preloadwaiting[b])if(delete a.preloadwaiting[c],delete a.preloadwaiting[b],!Object.keys(a.preloadwaiting).length&&a.notNull(a.globalOpts.onpreload))try{a.xeqByName(a.globalOpts.onpreload,window,e)}catch(x){a.error("in onpreload callback",x,!1)}g&&g.allext&&e.hdus&&0<e.hdus.length&&e.displayExtension("all")};if(b)if("object"===typeof b){if(g=b,g.display)var m=g.display}else m=b;m||(m=0<a.displays.length?a.displays[0].id:a.DEFID);this.type="image";this.display=a.lookupDisplay(m);
-this.params={};this.regstack=[];this.tmp={};this.params.xeqonchange=!0;this.params=$.extend(!0,this.params,a.imageOpts,g);this.display.image&&(this.params.inherit=this.display.image.params.inherit,this.params.inherit&&(this.params=$.extend(!0,this.params,this.display.image.params)));b=a.globalOpts.xeqPlugins;a.globalOpts.xeqPlugins=!1;this.setColormap(this.params.colormap);a.globalOpts.xeqPlugins=b;this.displayMode=!0;this.clickState=0;this.clickInRegion=!1;this.clickInLayer=null;this.queried=!1;
-g&&g.proxyFile&&(this.proxyFile=g.proxyFile);g&&g.proxyURL&&(this.proxyURL=g.proxyURL);g&&g.parentFile&&(this.parentFile=g.parentFile);if(g&&g.parent&&(this.parent=g.parent,this.parent.cardstr&&this.parent.ncard)){this.parent.raw={header:{},history:[],comments:[]};for(b=0;b<this.parent.ncard;b++)m=this.parent.cardstr.slice(80*b,80*(b+1)),m=a.cardpars(m),void 0!==m&&("HISTORY"===m[0]?this.parent.raw.header[m[0]+"__"+f++]=m[1]:"COMMENT"===m[0]?this.parent.raw.header[m[0]+"__"+h++]=m[1]:this.parent.raw.header[m[0]]=
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-$.extend({},{file:c.filename},g));k(g);if(this.params.zoom){var n=this.parseZoom(this.params.zoom);this.rgb.sect.zoom=n;this.rgb.sect.ozoom=n}this.mkSection();g&&g.rgbFile?(this.rgbFile=g.rgbFile,$(this.png.image).on("load",function(){if(e.png.image.width!==e.raw.width||e.png.image.height!==e.raw.height){var b=sprintf("rgb dims [%s,%s] don't match image [%s,%s]",e.png.image.width,e.png.image.height,e.raw.width,e.raw.height);a.error(b)}e.mkOffScreenCanvas();e.displayImage("all",g);l(d)}).on("error",
-function(){a.waiting(!1);a.error("could not load image: "+e.id)}),this.png.image.src=this.rgbFile):(this.displayImage("all",g),l(d));break;case "string":this.source=g.source||"fits2png";this.imtab="image";this.file=a.cleanPath(c);this.id0=this.file.split("/").reverse()[0];this.id=a.getImageID(this.id0,this.display.id);this.setStatus("load","loading");$(this.png.image).on("load",function(){e.mkOffScreenCanvas();e.mkRawDataFromPNG();e.params.zoom&&(n=e.parseZoom(e.params.zoom),e.rgb.sect.zoom=n,e.rgb.sect.ozoom=
-n);k(g);e.mkSection();e.displayImage("all",g);l(d);a.DEBUG&&a.log("JS9 image: %s dims(%d,%d) min/max(%d,%d)",e.file,e.raw.width,e.raw.height,e.raw.dmin,e.raw.dmax)}).on("error",function(){a.waiting(!1);a.error("could not load image: "+e.id)});this.png.image.src=c;break;default:a.error("unknown specification type for Load: "+typeof c)}};a.Image.prototype.getImageData=function(a){var b=null,c=this.fileDimensions(),e=c.xdim;c=c.ydim;if(a)if("array"===a)b=Array.from(this.raw.data);else if("base64"===
-a){b="";var g=new Uint8Array(this.raw.data.buffer),f=g.byteLength;for(a=0;a<f;a++)b+=String.fromCharCode(g[a]);b=window.btoa(b)}else a&&"false"!==a&&(b=this.raw.data);return{id:this.id,file:this.file,fits:this.fitsFile||"",source:this.source,imtab:this.imtab,width:this.raw.width,height:this.raw.height,bitpix:this.raw.bitpix,bin:this.binning.bin,header:this.raw.header,hdus:this.hdus,dwidth:this.display.width,dheight:this.display.height,fwidth:e,fheight:c,data:b}};a.Image.prototype.closeImage=function(c){var b,
-d=!1;var e=a.images.length;var g=a.Dysel.getDisplayOr(this.display);c=c||{};if("string"===typeof c)try{c=JSON.parse(c)}catch(h){a.error("can't parse closeImage opts: "+c,h)}for(b=0;b<e;b++)a.images[b].wcsim===this&&(a.images[b].wcsim=null);for(b=0;b<e;b++)if(this===a.images[b]){e=a.images[b];e===e.display.image&&(d=b+1);if(d)for(f in!1!==c.clear&&(e.display.clearMessage(),e.display.context.clear()),e.layers)e.layers.hasOwnProperty(f)&&("main"===e.layers[f].dlayer.dtype||e.display===g)&&e.showShapeLayer(f,
-!1,{local:!0});e.xeqPlugins("image","onimageclose");d&&(e.display.image=null);switch(e.cmapObj.name){case "red":a.globalOpts.rgb.rim=null;break;case "green":a.globalOpts.rgb.gim=null;break;case "blue":a.globalOpts.rgb.bim=null}for(c=0;c<e.raws.length;c++){var f=e.raws[c];f.hdu&&f.hdu.fits&&(g=a.lookupVfile(f.hdu.fits.vfile),1>=g.length&&a.cleanupFITSFile(f,!0));f.altwcs&&this.freeWCS(f)}e.removeProxyFile();e.rgb=null;e.offscreen=null;e.raw=null;e.colorData=null;e.colorCells=null;e.psColors=null;e.psInverse=
-null;a.images.splice(b,1);break}if(d){for(b=d-=2;0<=b;b--)if(e=a.images[b],this.display===e.display){e.displayImage("all");e.refreshLayers();d=a.images.length;break}for(b=a.images.length-1;b>d;b--)if(e=a.images[b],this.display===e.display){e.displayImage("all");e.refreshLayers();break}}};a.Image.prototype.mkOffScreenCanvas=function(){if(!this.png||!this.png.image)return this;this.offscreen={};this.offscreen.canvas=document.createElement("canvas");this.offscreen.canvas.setAttribute("width",this.png.image.width);
-this.offscreen.canvas.setAttribute("height",this.png.image.height);this.offscreen.context=this.offscreen.canvas.getContext("2d");a.ANTIALIAS||(this.offscreen.context.imageSmoothingEnabled=!1,this.offscreen.context.webkitImageSmoothingEnabled=!1,this.offscreen.context.msImageSmoothingEnabled=!1);this.offscreen.context.drawImage(this.png.image,0,0);try{this.offscreen.img=this.offscreen.context.getImageData(0,0,this.png.image.width,this.png.image.height)}catch(c){a.CHROMEFILEWARNING&&"Chrome"===a.BROWSER[0]&&
-""===document.domain?alert("When using the file:// URI, Chrome must be run with the --allow-file-access-from-files switch to permit JS9 to access data."):alert("could not read off-screen image data [same-origin policy violation?]")}return this};a.Image.prototype.initLCS=function(c){var b=[[0,0,0],[0,0,0],[0,0,0]];c=c||this.raw.header;var d=c.CRPIX1||1,e=c.CRPIX2||1;if(c.LCSROTA2&&c.CROTA2){var g=-c.CROTA2*Math.PI/180;var f=Math.sin(g);var h=Math.cos(g);g=[[0,0,0],[0,0,0],[0,0,0]];g[0][0]=h;g[0][1]=
--f;g[0][2]=0;g[1][0]=f;g[1][1]=h;g[1][2]=0;(f=a.invertMatrix3(g))||(g=null)}b[0][0]=a.defNull(c.LTM1_1,1);b[1][0]=c.LTM2_1||0;b[0][1]=c.LTM1_2||0;b[1][1]=a.defNull(c.LTM2_2,1);b[2][0]=c.LTV1||0;b[2][1]=c.LTV2||0;if("image"===this.imtab&&this.params.ltvbug){if(a.notNull(c.LTV1))for(h=0;2>h;h++){var k=Math.abs(b[0][h]);0<k&&1>k&&(b[2][0]+=.5*k)}if(a.notNull(c.LTV2))for(h=0;2>h;h++)k=Math.abs(b[1][h]),0<k&&1>k&&(b[2][1]+=.5*k)}this.lcs.physical={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};
-this.lcs.physical.reverse?g&&(this.lcs.physical.frot=$.extend(!0,[],g),this.lcs.physical.rrot=$.extend(!0,[],f),this.lcs.physical.cx=d-b[2][0]-1,this.lcs.physical.cy=e-b[2][1]-1):delete this.lcs.physical;b[0][0]=a.defNull(c.DTM1_1,1);b[1][0]=c.DTM2_1||0;b[0][1]=c.DTM1_2||0;b[1][1]=a.defNull(c.DTM2_2,1);b[2][0]=c.DTV1||0;b[2][1]=c.DTV2||0;this.lcs.detector={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.detector.reverse?g&&(this.lcs.detector.frot=$.extend(!0,[],g),this.lcs.detector.rrot=
-$.extend(!0,[],f),this.lcs.detector.cx=d-b[2][0]-1,this.lcs.detector.cy=e-b[2][1]-1):delete this.lcs.detector;b[0][0]=a.defNull(c.ATM1_1,1);b[1][0]=c.ATM2_1||0;b[0][1]=c.ATM1_2||0;b[1][1]=a.defNull(c.ATM2_2,1);b[2][0]=c.ATV1||0;b[2][1]=c.ATV2||0;this.lcs.amplifier={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.amplifier.reverse?g&&(this.lcs.amplifier.frot=$.extend(!0,[],g),this.lcs.amplifier.rrot=$.extend(!0,[],f),this.lcs.amplifier.cx=d-b[2][0]-1,this.lcs.amplifier.cy=e-b[2][1]-
-1):delete this.lcs.amplifier;this.params&&!this.lcs[this.params.lcs]&&(this.params.lcs="image");this.params&&!this.params.wcssys0&&(this.setWCSSys("physical"),this.params.wcssys0=this.params.lcs);this.lcs.physical&&!this.lcs.ophysical&&(this.lcs.ophysical=$.extend(!0,{},this.lcs.physical));return this};a.Image.prototype.mkRawDataFromIMG=function(c){var b,d;if(c){var e=c.height;var g=c.width;var f=c.data;this.raws.push({from:"img"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;this.raw.data=
-new Float32Array(e*g);for(d=c=0;d<e;d++)for(b=0;b<g;b++){var h=.299*f[c]+.587*f[c+1]+.114*f[c+2];this.raw.data[(e-d)*g+b]=h;c+=4}this.raw.width=g;this.raw.height=e;this.raw.bitpix=-32;this.dataminmax();this.source="png";this.raw.header={SIMPLE:!0,NAXIS:2,NAXIS1:this.raw.width,NAXIS2:this.raw.height,BITPIX:this.raw.bitpix};this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");return this}};a.Image.prototype.mkRawDataFromPNG=function(){var c,b,d;var e=b=0;var g=[];var f=new ArrayBuffer(8);
-var h=new Uint8Array(f),k=new DataView(f);if(!this.offscreen.img)return this;this.raws.push({from:"png"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;var l=this.offscreen.img.data;for(c=f=0;f<l.length&&0!==l[f];f++)if(255!==l[f]&&(g[c]=String.fromCharCode(l[f]),c++),15===c&&'{"js9Protocol":'!==g.join("")){var m=!0;break}if(15>c||m)this.mkRawDataFromIMG(this.offscreen.img);else{c=g.join("");2<a.DEBUG&&a.log("jsonHeader: %s",c);try{var n=JSON.parse(c)}catch(p){a.error("can't read FITS header from PNG file: "+
-c,p)}if(1===n.js9Protocol)this.raw.header=n,this.raw.endian=this.raw.header.js9Endian,this.raw.protocol=this.raw.header.js9Protocol;else for(this.raw.endian=n.js9Endian,this.raw.protocol=n.js9Protocol,this.raw.cardstr=n.cardstr,this.raw.ncard=n.ncard,this.raw.header={},n=this.raw.ncard,c=0;c<n;c++)m=this.raw.cardstr.slice(80*c,80*(c+1)),m=a.cardpars(m),void 0!==m&&("HISTORY"===m[0]?this.raw.header[m[0]+"__"+b++]=m[1]:"COMMENT"===m[0]?this.raw.header[m[0]+"__"+e++]=m[1]:this.raw.header[m[0]]=m[1]);
-f+=1;this.raw.header.NAXIS1?this.raw.width=this.raw.header.NAXIS1:a.error("NAXIS1 missing from PNG-based FITS header");this.raw.header.NAXIS2?this.raw.height=this.raw.header.NAXIS2:a.error("NAXIS2 missing from PNG-based FITS header");this.raw.header.BITPIX?this.raw.bitpix=this.raw.header.BITPIX:a.error("BITPIX missing from PNG-based FITS header");"little"===this.raw.endian?d=!0:"big"===this.raw.endian?d=!1:a.error("js9Endian missing from PNG-based FITS header");this.object=this.raw.header.OBJECT;
-this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;b=this.raw.width*this.raw.height;e=f%4;switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(b);for(c=0;c<b;c++){switch(e){case 0:var q=l[f];f+=1;e=1;break;case 1:q=l[f];f+=1;e=2;break;case 2:q=l[f];f+=2;e=0;break;case 3:q=l[f+1],f+=2,e=1}this.raw.data[c]=q}break;case 16:case -16:16===this.raw.bitpix?(this.raw.data=new Int16Array(b),n=DataView.prototype.getInt16):(this.raw.data=new Uint16Array(b),n=DataView.prototype.getUint16);
-for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=2;e=2;break;case 1:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=3;e=0;break;case 2:h[0]=l[f];h[1]=l[f+2];q=n.call(k,0,d);f+=3;e=1;break;case 3:h[0]=l[f+1],h[1]=l[f+2],q=n.call(k,0,d),f+=3,e=2}this.raw.data[c]=q}break;case 32:case -32:32===this.raw.bitpix?(this.raw.data=new Int32Array(b),n=DataView.prototype.getInt32):(this.raw.data=new Float32Array(b),n=DataView.prototype.getFloat32);for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];
-h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=1;break;case 1:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=2;break;case 2:h[0]=l[f];h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=6;e=0;break;case 3:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],q=n.call(k,0,d),f+=6,e=1}this.raw.data[c]=q}break;case -64:this.raw.data=new Float64Array(b);for(c=0;c<b;c++){switch(e){case 0:case 4:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+6];h[6]=l[f+
-8];h[7]=l[f+9];q=k.getFloat64(0,d);f+=10;e=2;break;case 1:case 5:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+9];q=k.getFloat64(0,d);f+=11;e=0;break;case 2:case 6:h[0]=l[f];h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+6];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+10];q=k.getFloat64(0,d);f+=11;e=1;break;case 3:case 7:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],h[4]=l[f+6],h[5]=l[f+7],h[6]=l[f+9],h[7]=l[f+10],q=k.getFloat64(0,d),f+=11,e=2}this.raw.data[c]=q}break;
-default:a.error("unsupported bitpix in PNG file: "+this.raw.bitpix)}this.dataminmax();this.offscreen.img=null;this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");return this}};a.Image.prototype.mkRawDataFromHDU=function(c,b){var d=this,e,g,f,h;var k=h=0;b=b||{};if($.isArray(c)||a.isTypedArray(c)||c instanceof ArrayBuffer){$.isArray(c[0])&&(c=c.reduce(function(a,b){return a.concat(b)}));var l={image:c}}else"object"===typeof c?l=c:a.error("unknown or missing input for HDU creation");
-l.data&&!l.image&&(l.image=l.data);l.image||a.error("data missing from JS9 FITS object: "+JSON.stringify(l));2>l.naxis&&a.error("can't image a FITS file with less than 2 dimensions");if(this.raw){var m=this.raw;var n=this.raw.width;var q=this.raw.height;var p=this.raw.bitpix;var t=a.defNull(this.raw.header.LTM1_1,1);var r=this.params.wcssys;var u=this.params.wcsunits;this.freeWCS()}this.raws=this.raws||[];if(f=this.raws.length){b.rawid=b.rawid||a.RAWIDX;for(e=g=0;e<f;e++)if(b.rawid===this.raws[e].id){var v=
-this.raws[e].from;this.raws[e]={from:v,id:b.rawid};this.raw=this.raws[e];g++;break}g||(this.raws.push({from:"hdu",id:b.rawid}),this.raw=this.raws[f],m=null)}else this.raws.push({from:"hdu"}),this.raw=this.raws[f],this.raw.id=a.RAWID0;this.raw.hdu=l;l.axis?(this.raw.width=l.axis[1],this.raw.height=l.axis[2]):l.naxis1&&l.naxis2?(this.raw.width=l.naxis1,this.raw.height=l.naxis2):n&&q&&(this.raw.width=n,this.raw.height=q);l.bitpix?this.raw.bitpix=l.bitpix:p&&(this.raw.bitpix=p);if("base64"===l.encoding)for(v=
-window.atob(l.image),l.image=new ArrayBuffer(v.length),g=new Uint8Array(l.image),e=0;e<v.length;e++)g[e]=v.charCodeAt(e);$.isArray(l.image[0])&&(l.image=l.image.reduce(function(a,b){return a.concat(b)}));switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(l.image);break;case 16:this.raw.data=new Int16Array(l.image);break;case -16:this.raw.data=new Uint16Array(l.image);break;case 32:this.raw.data=new Int32Array(l.image);break;case -32:this.raw.data=new Float32Array(l.image);break;case -64:this.raw.data=
-new Float64Array(l.image)}this.raw.card=l.card;this.raw.cardstr=l.cardstr;this.raw.ncard=l.ncard;if(l.head)this.raw.header=l.head;else if(this.raw.card)for(this.raw.header={},g=this.raw.card.length,e=0;e<g;e++)f=a.cardpars(this.raw.card[e]),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else if(this.raw.cardstr)for(this.raw.header={},g=this.raw.ncard,e=0;e<g;e++)f=this.raw.cardstr.slice(80*e,80*(e+
-1)),f=a.cardpars(f),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else this.raw.header={},this.raw.header.SIMPLE=!0,this.raw.header.NAXIS=2,this.raw.header.NAXIS1=this.raw.width,this.raw.header.NAXIS2=this.raw.height,this.raw.header.BITPIX=this.raw.bitpix;e=this.raw.header;m||this.parentFile||this.parent||void 0===e.LTV1&&void 0===e.LTV2&&void 0===e.LTM1_1&&void 0===e.LTM2_2||(this.parent={},this.parent.raw=
-{header:$.extend(!0,{},e)},this.parent.lcs={},a.Image.prototype.initLCS.call(this.parent,this.parent.raw.header));if("image"===l.imtab&&void 0!==l.x1&&1!==l.x1||void 0!==l.y1&&1!==l.y1||void 0===l.bin||1!==l.bin)g=l.bin||1,h=void 0!==l.x1?l.x1:0,k=void 0!==l.y1?l.y1:0,void 0!==e.NAXIS1&&(e.NAXIS1/=g),void 0!==e.NAXIS2&&(e.NAXIS2/=g),void 0!==e.CRPIX1&&(e.CRPIX1=(e.CRPIX1-h)/g+.5),void 0!==e.CRPIX2&&(e.CRPIX2=(e.CRPIX2-k)/g+.5),void 0!==e.CDELT1&&(e.CDELT1*=g),void 0!==e.CDELT2&&(e.CDELT2*=g),void 0!==
-e.CD1_1&&(e.CD1_1*=g),void 0!==e.CD1_2&&(e.CD1_2*=g),void 0!==e.CD2_1&&(e.CD2_1*=g),void 0!==e.CD2_2&&(e.CD2_2*=g),e.LTM1_1=a.defNull(e.LTM1_1,1),e.LTM1_1/=g,e.LTM2_1=e.LTM2_1||0,e.LTM2_1/=g,e.LTM1_2=e.LTM1_2||0,e.LTM1_2/=g,e.LTM2_2=a.defNull(e.LTM2_2,1),e.LTM2_2/=g,e.LTV1=e.LTV1||0,e.LTV1=(e.LTV1-h)/g+.5,e.LTV2=e.LTV2||0,e.LTV2=(e.LTV2-k)/g+.5;b.lcsUseRota2&&(e.LCSROTA2=!0);b.file&&b.file!==this.file?(this.file=b.file,this.id=null):b.filename&&b.filename!==this.file?(this.file=b.filename,this.id=
-null):l.filename&&l.filename!==this.file&&(this.file=l.filename,this.id=null);this.file0=this.file=this.file||a.ANON+a.uniqueID();b.id&&(this.id0=b.id,this.id=a.getImageID(b.id,this.display.id,this));this.id||!this.file||this.file.match(/\[.*[^a-zA-Z0-9_].*\]/)||(b.extname||b.extnum?(b.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extname+"]"):b.extnum&&0<b.extnum&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extnum+"]"),l&&l.fits&&(b.extname&&(l.fits.extname=b.extname),
-b.extnum&&0<b.extnum&&(l.fits.extnum=b.extnum))):l.fits?l.fits.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+l.fits.extname+"]"):l.fits.extnum&&0<l.fits.extnum&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+l.fits.extnum+"]"):this.raw.header&&this.raw.header.EXTNAME&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+this.raw.header.EXTNAME+"]"));this.id||(this.id0=(this.parentFile||this.file).split("/").reverse()[0],this.id=a.getImageID(this.id0,this.display.id,
-this));b.proxyFile&&(this.proxyFile=b.proxyFile);this.raw.filter=b.filter||"";this.imtab=l.imtab?l.imtab:l.table?"table":"image";this.raw.imtab=this.imtab;void 0!==l.dmin&&void 0!==l.dmax?this.dataminmax(l.dmin,l.dmax):this.dataminmax();this.object=this.raw.header.OBJECT;this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;this.binning.bin="table"===this.imtab&&l.table?l.table.bin||1:l.bin?l.bin:1;b.ltm2obin&&e.LTM1_1?this.binning.obin=e.LTM1_1/t:m||(this.binning.obin=
-this.binning.bin);this.initWCS();r&&this.setWCSSys(r);u&&this.setWCSUnits(u);this.initLCS();try{if(b.hdus)this.hdus=b.hdus;else if(this.parentFile&&a.helper.connected&&a.helper.js9helper)c={id:this.expandMacro("$id"),cmd:this.expandMacro("js9Xeq listhdus $filename"),image:this.file,fits:this.parentFile,rtype:"text"},a.helper.send("listhdus",c,function(a){if(!a.stderr&&!a.errcode&&a.stdout)try{d.hdus=JSON.parse(a.stdout)}catch(w){d.hdus=null}});else if(this.raw&&this.raw.hdu&&this.raw.hdu.fits&&(v=
-a.listhdu(this.raw.hdu.fits.vfile)))try{this.hdus=JSON.parse(v)}catch(y){this.hdus=null}}catch(y){}if(this.raw.hdu.fits&&this.raw.hdu.fits.vfile){v=a.globalOpts.clearImageMemory;v=!1===v?["never"]:!0===v?["always"]:v.toLowerCase().split(/[,>]/);m=c=!1;e=0;for(b=!1;e<v.length&&!b;e++)switch(v[e]){case "never":c=!1;b=!0;break;case "always":b=c=!0;break;case "heap":m=!0;break;case "auto":2>=this.raw.header.NAXIS&&(!this.hdus||1===this.hdus.length)?c=!0:(c=!1,b=!0);break;case "nocube":2>=this.raw.header.NAXIS?
-c=!0:(c=!1,b=!0);break;case "noext":this.hdus&&1!==this.hdus.length?(c=!1,b=!0):c=!0;break;case "size":v[e+1]?a.vsize(l.fits.vfile)>1E6*v[e+1]?c=!0:(c=!1,b=!0):(c=!1,b=!0)}c?(2<a.DEBUG&&a.log("removing underlying FITS vfile for %s: %s",this.id,this.raw.hdu.fits.vfile),a.cleanupFITSFile(this.raw,!0)):m&&(2<a.DEBUG&&a.log("freeing heap space for %s: %s",this.id,this.raw.hdu.fits.vfile),a.cleanupFITSFile(this.raw,!1))}this.xeqPlugins("image","onrawdata");return this};a.Image.prototype.mkSection=function(c){for(var b=
-[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];d=this.rgb.sect;d.ozoom=d.zoom;switch(b.length){case 0:d.xcen=Math.floor(this.raw.width/2);d.ycen=Math.floor(this.raw.height/2);d.width=Math.min(this.raw.width,this.display.canvas.width);d.height=Math.min(this.raw.height,this.display.canvas.height);break;case 1:a.isNumber(b[0])||a.error("invalid input for generating section: "+b[0]);d.zoom=parseFloat(b[0]);d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width);d.height=Math.min(this.raw.height*
-d.zoom,this.display.canvas.height);break;case 2:a.isNumber(b[0])&&a.isNumber(b[1])||a.error("invalid input for generating section: "+b[0]+" "+b[1]);d.xcen=parseFloat(b[0]);d.ycen=parseFloat(b[1]);a.notNull(d.ix)&&(d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width));a.notNull(d.iy)&&(d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height));break;case 3:a.isNumber(b[0])&&a.isNumber(b[1])&&a.isNumber(b[2])||a.error("invalid input for generating section: "+b[0]+" "+b[1]+" "+
-b[2]),d.xcen=parseFloat(b[0]),d.ycen=parseFloat(b[1]),d.zoom=parseFloat(b[2]),d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width),d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height)}delete d.ix;delete d.iy;d.x0=d.xcen-d.width/(2*d.zoom);d.y0=d.ycen-d.height/(2*d.zoom);d.x1=d.xcen+d.width/(2*d.zoom);d.y1=d.ycen+d.height/(2*d.zoom);0>d.x0&&(a.globalOpts.panWithinDisplay?d.x1-=d.x0:d.ix=d.x0*d.zoom,d.x0=0);0>d.y0&&(a.globalOpts.panWithinDisplay?d.y1-=d.y0:d.iy=d.y0*d.zoom,
-d.y0=0);d.x1>this.raw.width&&(a.globalOpts.panWithinDisplay?d.x0-=d.x1-this.raw.width:d.ix=(d.x1-this.raw.width)*d.zoom,d.x1=this.raw.width);d.y1>this.raw.height&&(a.globalOpts.panWithinDisplay?d.y0-=d.y1-this.raw.height:d.iy=(d.y1-this.raw.height)*d.zoom,d.y1=this.raw.height);0<d.ix&&0<d.x0&&(b=Math.min(d.ix,d.x0),d.x0-=b,d.ix+=b*d.zoom);0>d.ix&&d.x1<this.raw.width&&(b=Math.min(this.raw.width-d.x1,Math.abs(d.ix)),d.x1+=b,d.ix-=b*d.zoom);0<d.iy&&0<d.y0&&(b=Math.min(d.iy,d.y0),d.y0-=b,d.iy+=b*d.zoom);
-0>d.iy&&d.y1<this.raw.height&&(b=Math.min(this.raw.height-d.y1,Math.abs(d.iy)),d.y1+=b,d.iy-=b*d.zoom);d.x0=Math.max(0,d.x0);d.x1=Math.min(this.raw.width,d.x1);d.y0=Math.max(0,d.y0);d.y1=Math.min(this.raw.height,d.y1);d.x0=Math.floor(d.x0);d.y0=Math.floor(d.y0);d.x1=Math.floor(d.x1);d.y1=Math.floor(d.y1);d.width=Math.ceil((d.x1-d.x0)*d.zoom);d.height=Math.ceil((d.y1-d.y0)*d.zoom);if(0>=d.width||0>=d.height)b=sprintf("invalid image section: %s,%s [%s,%s, %s,%s, %s]",d.width,d.height,d.x0,d.y0,d.x1,
-d.y1,d.zoom),a.error(b);this.offscreenRGB=null;this.params.zoom=d.zoom;return this};a.Image.prototype.mkColorData=function(){var c,b=a.SCALESIZE,d=this.params.scalemin,e=this.params.scalemax,g=this.raw.width*this.raw.height,f=(b-1)/(e-d);if(!this.colorData||this.colorData.length<g)this.colorData=new Int32Array(g);for(c=0;c<g;c++){var h=this.raw.data[c];this.colorData[c]=h<=d?0:h>=e?b-1:Math.floor((h-d)*f+.5)}return this};a.Image.prototype.calcContrastBias=function(c){var b=this.params.bias,d=a.COLORSIZE,
-e=this.params.contrast;if(1E-4>b-.5&&1E-4>e-1)return c;this.params.invert&&(b=1-b);c=Math.floor(((c/d-b)*e+.5)*d);return 0>c?0:c>=d?d-1:c};a.Image.prototype.mkColorCells=function(){var c,b=a.COLORSIZE;this.colorCells||(this.colorCells=[]);for(c=0;c<b;c++){var d=this.params.invert?b-c-1:c;d=this.calcContrastBias(d);this.colorCells[c]=this.cmapObj.mkColorCell(d)}return this};a.Image.prototype.mkScaledCells=function(){var c,b;var d=a.COLORSIZE;var e=a.SCALESIZE,g=a.INVSIZE;var f=a.HISTSIZE;if(!this.colorCells)return this;
-if(!this.psColors){var h=this.psColors=[];var k=this.params.nancolor;var l=[];"#"===k.charAt(0)&&(k=k.slice(1));k=k.toUpperCase();for(c=b=0;6>b;b+=2,c++){var m="0123456789ABCDEF".indexOf(k.charAt(b));var n="0123456789ABCDEF".indexOf(k.charAt(b+1));l[c]=16*m+n}h[NaN]=l}this.psInverse||(this.psInverse=[],this.psInverse[NaN]=0);k=this.params.scalemax-this.params.scalemin;b=this.params.scalemin;switch(this.params.scale){case "linear":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];
-for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*k+b;break;case "log":f=this.params.exp;for(h=0;h<e;h++)c=Math.log(f*h/e+1)/Math.log(f),c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=(Math.pow(f,h/g)-1)/f,this.psInverse[h]=c*k+b;break;case "power":f=this.params.exp;for(h=0;h<e;h++)c=(Math.pow(f,h/e)-1)/f,c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=Math.log(f*h/g+1)/Math.log(f),this.psInverse[h]=c*k+b;break;case "sqrt":for(h=
-0;h<e;h++)c=h/e,c=Math.floor(Math.sqrt(c)*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*c*k+b;break;case "squared":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=Math.sqrt(h/g),this.psInverse[h]=c*k+b;break;case "asinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.asinh(10*c)/3*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.sinh(3*c)/10,this.psInverse[h]=c*
-k+b;break;case "sinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.sinh(3*c)/10*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.asinh(10*c)/3,this.psInverse[h]=c*k+b;break;case "histeq":l=this.raw.data;var q=this.raw.width*this.raw.height;k=this.raw.dmax-this.raw.dmin;var p=this.raw.dmax;b=this.raw.dmin;var t=c=0;m=[];if(!this.hist||!this.hist.length){this.hist=[];for(h=0;h<f;h++)m[h]=0;for(h=0;h<q;h++)l[h]>=b&&l[h]<=p&&(n=Math.floor((l[h]-b)/k*f+.5),n<f&&(m[n]+=1));for(h=
-0;h<f;h++)t+=m[h];n=t/f;for(h=l=0;h<f&&l<f;h++)for(this.hist[h]=l/f,c+=m[h];c>=n&&l<f;)c-=n,l++;for(c=(f-1)/f;h<f;)this.hist[h++]=c}for(h=0;h<e;h++)c=this.hist[h*f/e],c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++){d=h/g;for(n=0;n<f-1&&!(this.hist[n]>d);n++);c=n/f;this.psInverse[h]=c*k+b}break;default:a.error("unknown scale '"+this.params.scale+"'")}return this};a.Image.prototype.mkRGBImage=function(){var c,b,d,e,g=null,f=null,h=null,k=!1;if(!this.rgb)return this;!a.globalOpts.rgb.active||
-this!==a.globalOpts.rgb.rim&&this!==a.globalOpts.rgb.gim&&this!==a.globalOpts.rgb.bim||(k=!0,a.globalOpts.rgb.rim&&(g=a.globalOpts.rgb.rim),a.globalOpts.rgb.gim&&(f=a.globalOpts.rgb.gim),a.globalOpts.rgb.bim&&(h=a.globalOpts.rgb.bim));var l=this.display.context;var m=this.rgb;var n=m.sect;if(this.MakeRGBImage&&"function"===typeof this.MakeRGBImage&&this.MakeRGBImage()||this.MakePrimaryImage&&"function"===typeof this.MakePrimaryImage&&this.MakePrimaryImage())return this;if(this.rgbFile){var q=n.width/
-n.zoom;var p=n.height/n.zoom;var t=n.x0;var r=this.offscreen.canvas.height-1-(n.y0+p);r=this.offscreen.context.getImageData(t,r,q,p);if(1===n.zoom)m.img=r;else for(m.img=l.createImageData(n.width,n.height),m=m.img,d=c=0;c<r.height;c++,d++){var u=c*r.width;var v=d*n.zoom;for(b=l=0;l<r.width;l++,b++){t=4*(u+l);var y=b*n.zoom;for(e=0;e<n.zoom;e++){var w=Math.floor(v+e);var x=w*n.width;for(w=0;w<n.zoom;w++){var z=Math.floor(y+w);z=4*(x+z);m.data[z]=r.data[t];m.data[z+1]=r.data[t+1];m.data[z+2]=r.data[t+
-2];m.data[z+3]=r.data[t+3]}}}}return this}m.img&&m.img.width===n.width&&m.img.height===n.height||(m.img=l.createImageData(n.width,n.height));m=m.img;if(!this.psColors)return this;var A=void 0!==this.params.opacity?255*this.params.opacity:void 0!==this.params.alpha?this.params.alpha:255;this.maskData&&(this.params.maskInvert?void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.opacity,q=255*this.params.maskOpacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?
-(r=this.params.alpha2,q=this.params.alpha1):(r=0,q=255):void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.maskOpacity,q=255*this.params.opacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?(r=this.params.alpha1,q=this.params.alpha2):(r=255,q=0));var B=Math.max(1,Math.floor(1/n.zoom));var E=n.zoom*B;c=Math.floor(n.y1-1);for(d=0;c>=n.y0;c-=B,d++)for(u=c*this.raw.width,v=d*E,l=Math.floor(n.x0),b=0;l<n.x1;l+=B,b++){if(k){p=g?g.colorData[u+l]:0;var C=f?f.colorData[u+
-l]:0;var F=h?h.colorData[u+l]:0;if(void 0===p||void 0===C||void 0===F)return a.globalOpts.rgb.active=!1,a.error("RGB images are incompatible. Turning off RGB mode.","",!1),this.mkRGBImage(),this}else t=this.colorData[u+l];this.maskData&&(A=0<this.maskData[u+l]?r:q);y=b*E;for(e=0;e<n.zoom;e++)for(w=Math.ceil(v+e),x=w*n.width,w=0;w<n.zoom;w++)if(z=Math.ceil(y+w),z=4*(x+z),z<m.data.length){if(k)m.data[z]=g?g.psColors[p][0]:0,m.data[z+1]=f?f.psColors[C][1]:0,m.data[z+2]=h?h.psColors[F][2]:0;else{if(void 0===
-this.psColors[t]){var D=sprintf("invalid image access: %s,%s",l,c);a.error(D)}m.data[z]=this.psColors[t][0];m.data[z+1]=this.psColors[t][1];m.data[z+2]=this.psColors[t][2]}m.data[z+3]=A}}return this};a.Image.prototype.blendImage=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];var e=$jscomp.makeIterator(b);d=e.next().value;var g=e.next().value;e=e.next().value;var f=/normal|multiply|screen|overlay|darken|lighten|color-dodge|color-burn|hard-light|soft-light|difference|exclusion|hue|saturation|color|luminosity|clear|copy|source-over|destination-over|source-in|destination-in|source-out|destination-out|source-atop|destination-atop|xor|lighter/i;
-if(0===b.length)return this.blend;if(!0===d||!1===d||"true"===d||"false"===d)return"true"===d?d=!0:"false"===d&&(d=!1),this.blend.active=d,this.xeqPlugins("image","onimageblend"),this.display.blendMode&&this.displayImage(),this;if(a.notNull(d)||a.notNull(g))a.notNull(d)&&(f.test(d)||a.error("invalid composite/blend operation: "+d),this.blend.mode=d),a.notNull(g)&&("string"===typeof g?g=parseFloat(g):"number"!==typeof g&&a.error("invalid opacity: "+g),this.blend.opacity=Math.min(Math.max(g,0),1)),
-a.notNull(e)&&("true"===e?e=!0:"false"===e&&(e=!1),this.blend.active=e),this.xeqPlugins("image","onimageblend"),this.display.blendMode&&this.blend.active&&this.displayImage();return this};a.Image.prototype.calcDisplayOffsets=function(c){var b=this.rgb.sect;this.ix=(this.display.canvas.width-this.rgb.img.width)/2;this.iy=(this.display.canvas.height-this.rgb.img.height)/2;a.notNull(b.ix)&&(this.ix-=b.ix/2);a.notNull(b.iy)&&(this.iy+=b.iy/2);this.ix=Math.floor(this.ix);this.iy=Math.floor(this.iy);if(c&&
-this.wcsAlign()){var d=this.wcsim;c=d.rgb.sect;d=a.pix2pix(d,this,d.getPan());var e=a.globalOpts.panWithinDisplay;a.globalOpts.panWithinDisplay=!0;this.tmp.ozoom=this.rgb.sect.ozoom;this.mkSection(d.x,d.y,c.zoom);this.rgb.sect.ozoom=this.tmp.ozoom;delete this.tmp.ozoom;a.globalOpts.panWithinDisplay=e;this.ix-=(b.xcen-(b.x0+b.x1)/2)*c.zoom;this.iy+=(b.ycen-(b.y0+b.y1)/2)*c.zoom}return this};a.Image.prototype.putImage=function(c){var b=this,d=this.rgb,e=this.display.context,g=function(c){if(!b.offscreenRGB){var d=
-document.createElement("canvas");var e=d.getContext("2d");d.width=c.width;d.height=c.height;a.ANTIALIAS||(e.imageSmoothingEnabled=!1,e.webkitImageSmoothingEnabled=!1,e.msImageSmoothingEnabled=!1);e.putImageData(c,0,0);b.offscreenRGB={canvas:d,context:e}}return b.offscreenRGB.canvas};c=c||{};"reproject"===this.rawDataLayer()&&c.wcsim&&(this.wcsim=c.wcsim,this.wcsim.isawcsim=!0);this.calcDisplayOffsets(!0);a.notNull(c.opacity)||a.notNull(c.blend)?(e.save(),void 0!==c.opacity&&(e.globalAlpha=c.opacity),
-void 0!==c.blend&&(e.globalCompositeOperation=c.blend),e.drawImage(g(d.img),this.ix,this.iy),e.restore()):e.putImageData(d.img,this.ix,this.iy);return this};a.Image.prototype.displayImage=function(c,b){var d=0;var e=[],g={};if(!1===c)return this.displayMode=!1,this;!0===c&&(this.displayMode=!0,c="all");if(!this.displayMode)return this;"object"===typeof c&&(b=c,c=null);c?"all"===c?(c="colors,scaled,rgb,display,plugins",g.notify=!0):"rgbonly"===c?(c="rgb,nodisplay",g.notify=!0):"display"===c&&(g.notify=
-!0):c="rgb";c.split(",").forEach(function(a,b,c){a=a.trim();g[a]=!0;switch(a){case "colors":g.scaled=!0;g.rgb=!0;break;case "scaled":g.rgb=!0}});g.display=!0;g.plugins=!0;this.rgbFile&&(g.colors=!1,g.scaled=!1);b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse displayImage opts: "+b,h)}if(this.display.blendMode&&!1!==b.blendMode)for(c=0;c<a.images.length;c++){var f=a.images[c];f.display===this.display&&f.blend.active&&(e.push(f),d++)}g.colors&&(this.mkColorData(),this.offscreenRGB=
-null);g.scaled&&(this.mkColorCells(),this.mkScaledCells(),this.offscreenRGB=null);if(g.rgb&&(this.mkRGBImage(),this.offscreenRGB=null,d))for(c=e.length-1;0<=c;c--)f=e[c],f.mkRGBImage(),f.offscreenRGB=null;if(g.nodisplay)return this;if(g.display){this.display.context.clear();if(d){for(c=e.length-1;0<=c;c--)e[c].calcDisplayOffsets(!1);for(c=e.length-1;0<=c;c--)f=e[c],d={wcsim:b.wcsim,blend:f.blend.mode,opacity:f.blend.opacity},f.putImage(d),f===this&&f.displayShapeLayers()}else this.putImage(b),this.displayShapeLayers();
-this.display.image=this;if(this.delayedShapes&&this.delayedShapes.length){for(;this.delayedShapes.length;)b=this.delayedShapes.shift(),this.addShapes(b.layer,b.shape,b.opts);delete this.delayedShapes}}this.xeqPlugins("image","onimagedisplay");return this};a.Image.prototype.refreshImage=function(c,b){b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse refresh opts: "+b,h)}if(c&&"string"!==typeof c){b.rawid=b.rawid||a.RAWID0;"function"===typeof b&&(b={onrefresh:b});!b.onrefresh&&
-a.imageOpts.onrefresh&&(b.onrefresh=a.imageOpts.onrefresh);if(!b.resetSection){var d=this.imageToLogicalPos({x:this.rgb.sect.xcen,y:this.rgb.sect.ycen});if(this.raw.wcs&&0<this.raw.wcs){var e=a.pix2wcs(this.raw.wcs,this.rgb.sect.xcen,this.rgb.sect.ycen);var g=e.trim().split(/\s+/);var f=a.saostrtod(g[0]);":"===String.fromCharCode(a.saodtype())&&"galactic"!==this.params.wcssys&&"ecliptic"!==this.params.wcssys&&(f*=15);g=a.saostrtod(g[1])}}e=this.rgb.sect.zoom;this.binning.obin=this.binning.bin;this.mkRawDataFromHDU(c,
-b);b.resetSection?(this.mkSection(),this.mkSection(e)):(this.raw.wcs&&0<this.raw.wcs&&a.notNull(f)&&a.notNull(g)?(g=a.wcs2pix(this.raw.wcs,f,g).trim().split(/ +/),c={x:parseFloat(g[0]),y:parseFloat(g[1])}):c=this.logicalToImagePos({x:d.x,y:d.y}),0<c.x&&c.x<this.raw.width&&0<c.y&&c.y<this.raw.height?this.mkSection(c.x,c.y,e):(this.mkSection(),this.mkSection(e)));this.displayImage("colors",b);this.reFlipRot90();this.notifyHelper();if(b.refreshRegions||b.resetSection||this.binning.obin!==this.binning.bin)this.refreshLayers(),
-this.updateShapes("regions","all","binning");this.xeqPlugins("image","onimagerefresh");a.waiting(!1);if(b.onrefresh)try{a.xeqByName(b.onrefresh,window,this)}catch(h){a.error("in image refresh callback",h)}return this}b.onrefresh&&(b.onload=b.onrefresh,delete b.onrefresh);b.refresh=this;e=document.domain?c||this.file:c||this.fitsFile||this.file;a.Load(e,b,{display:this.display})};a.Image.prototype.fileDimensions=function(){if(this.parent&&"BINTABLE"!==this.parent.raw.header.XTENSION){var a=this.parent.raw.header.TABDIM1?
-this.parent.raw.header.TABDIM1:this.parent.raw.header.NAXIS1;var b=this.parent.raw.header.TABDIM2?this.parent.raw.header.TABDIM2:this.parent.raw.header.NAXIS2}else a=this.raw.header.TABDIM1?this.raw.header.TABDIM1:this.raw.header.NAXIS1,b=this.raw.header.TABDIM2?this.raw.header.TABDIM2:this.raw.header.NAXIS2;return{xdim:a,ydim:b}};a.Image.prototype.maybePhysicalToImage=function(c){if("image"===this.imtab&&this.parent&&this.parent.lcs&&c.x&&c.y){c={x:c.x,y:c.y};c=a.Image.prototype.logicalToImagePos.call(this.parent,
-c,"ophysical");var b={x:Math.floor(c.x+.5),y:Math.floor(c.y+.5)}}return b};a.Image.prototype.displaySection=function(c,b){var d=this,e,g,f,h,k,l,m,n=function(b,c,d){var e;a.isNull(b)?a.isNull(c)||(e=c):e=b;return e||d},q=function(c,e){var f="";l=$.extend(!0,{},e||{});a.isNull(l.refreshRegions)&&(l.refreshRegions=!0);a.isNull(l.resetSection)&&(l.resetSection=!0);!1!==l.waiting&&a.waiting(!0,d.display);c.fits.extname?f="["+c.fits.extname+"]":c.fits.extnum&&0<c.fits.extnum?f="["+c.fits.extnum+"]":d.parent&&
-(d.parent.extname?f="["+d.parent.extname+"]":d.parent.extnum&&0<d.parent.extnum&&(f="["+d.parent.extnum+"]"));f&&(l.id=d.id.replace(/\[.*\]/,"")+f,l.file=d.file.replace(/\[.*\]/,"")+f);if(l.separate){delete l.xcen;delete l.ycen;if("string"===typeof l.separate){f=l.separate.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e)}else l.display=d.display;"parentFile"===g&&d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:
-d.fitsFile);h=d.listRegions("all",{mode:1,saveid:!0});b=l.ondisplaysection||l.onrefresh||b;k=new a.Image(c,l,b);k.binning.obin=k.binning.bin;h&&!1!==l.refreshRegions&&k.addShapes("regions",h,{restoreid:!0});d.reFlipRot90();k.setStatus("displaySection","complete")}else if("string"===typeof l.refresh){delete l.xcen;delete l.ycen;f=l.refresh.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e);l.display.image?(l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||
-l.onrefresh||b,l.display.image.refreshImage(c,l)):("parentFile"===g&&d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:d.fitsFile),h=d.listRegions("all",{mode:1,saveid:!0}),b=l.ondisplaysection||l.onrefresh||b,k=new a.Image(c,l,b),k.binning.obin=k.binning.bin,h&&k.addShapes("regions",h,{restoreid:!0}),d.reFlipRot90())}else l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||l.onrefresh||b,d.refreshImage(c,l);d.setStatus("displaySection","complete");a.waiting(!1)};this.raw&&
-this.raw.hdu&&this.raw.hdu.fits||a.error("invalid image for displaySection");c=c||{};if("full"===c){var p=this.fileDimensions();c={xdim:p.xdim,ydim:p.ydim,xcen:0,ycen:0}}else{if("selected"===c){this.selectShapes("regions","selected",function(a){a=a.pub;var c,e=0,f=0,g=1E6,h=0,k=1E6,m=0,n=a.shape;if(!d.parentFile&&a.lcs){a=a.lcs;var p=a.x;var t=a.y;if(c=d.maybePhysicalToImage({x:p,y:t}))p=c.x,t=c.y}else p=a.x,t=a.y;switch(n){case "annulus":var q=2*a.radii[a.radii.length-1];var r=2*a.radii[a.radii.length-
-1];break;case "box":q=a.width;r=a.height;break;case "circle":q=2*a.radius;r=2*a.radius;break;case "ellipse":q=2*a.r1;r=2*a.r2;break;case "polygon":case "line":for(q=0;q<a.pts.length;q++)e+=a.pts[q].x,f+=a.pts[q].y,a.pts[q].x>h&&(h=a.pts[q].x),a.pts[q].x<g&&(g=a.pts[q].x),a.pts[q].y>m&&(m=a.pts[q].y),a.pts[q].y<k&&(k=a.pts[q].y);a.x=e/a.pts.length;a.y=f/a.pts.length;"line"===a.shape&&2===a.pts.length?(q=Math.sqrt((a.pts[0].x-a.pts[1].x)*(a.pts[0].x-a.pts[1].x)+(a.pts[0].y-a.pts[1].y)*(a.pts[0].y-a.pts[1].y)),
-r=1):(q=h-g,r=m-k);break;case "text":r=q=10}l={xcen:p,ycen:t,xdim:q,ydim:r,from:"virtualFile",separate:!0,refreshRegions:!1,resetSection:!0};d.displaySection(l,b)});return}if("string"===typeof c)try{c=JSON.parse(c)}catch(y){a.error("can't parse section opts: "+c,y)}}var t=c.separate?$.extend(!0,{},this.raw.hdu):this.raw.hdu;(g=c.from)||(g=this.parentFile&&a.helper.connected&&a.helper.js9helper?"parentFile":"virtualFile");if(t.table)p=t.table;else{if("parentFile"===g&&this.raw.header&&a.notNull(this.raw.header.LTM1_1)){var r=
-1;var u=this.raw.header.LTM1_1}else r=t.bin||1,u=1;p={x:this.raw.width/2,y:this.raw.height/2};var v=this.imageToLogicalPos(p);p={};p.bin=Math.floor(r/u+.5);p.xcen=Math.floor(v.x+.5*(p.bin-1));p.ycen=Math.floor(v.y+.5*(p.bin-1));if(r=this.maybePhysicalToImage({x:p.xcen,y:p.ycen}))p.xcen=r.x,p.ycen=r.y;p.xdim=Math.floor(t.naxis1*p.bin);p.ydim=Math.floor(t.naxis2*p.bin);p.filter=this.raw.filter||""}if("string"===typeof c.bin)switch(c.bin.match(/[as]$/)&&(c.binMode=c.bin.slice(-1),c.bin=c.bin.slice(0,
--1)),r=p.bin||this.binning.bin,c.bin.charAt(0)){case "*":case "x":case "X":c.bin=r*parseInt(c.bin.slice(1),10);break;case "/":c.bin=r/parseInt(c.bin.slice(1),10);break;case "+":c.bin=r+parseInt(c.bin.slice(1),10);break;case "-":c.bin=r-parseInt(c.bin.slice(1),10);break;case "i":case "I":c.bin=2*r;break;case "o":case "O":c.bin=r/2;break;default:a.isNumber(c.bin)?c.bin=parseInt(c.bin,10):a.error("invalid bin for displaySection: "+c.bin)}c.xcen=n(c.xcen,p.xcen,0);c.ycen=n(c.ycen,p.ycen,0);switch(this.imtab){case "table":c.xdim=
-n(c.xdim,p.xdim,a.fits.options.table.xdim);c.ydim=n(c.ydim,p.ydim,a.fits.options.table.ydim);c.bin=n(c.bin,p.bin,a.fits.options.table.bin);break;default:c.xdim=n(c.xdim,p.xdim,a.fits.options.image.xdim),c.ydim=n(c.ydim,p.ydim,a.fits.options.image.ydim),c.bin=n(c.bin,p.bin,a.fits.options.image.bin)}c.binMode=n(c.binMode,p.binMode,a.globalOpts.binMode);"string"===typeof c.bin&&(c.bin.match(/[as]$/)&&(c.binMode=c.bin.slice(-1)),c.bin=parseInt(c.bin,10));c.bin=Math.max(1,c.bin||1);c.filter=n(c.filter,
-p.filter,"");this.raw.filter=c.filter||"";!1!==c.waiting&&a.waiting(!0,this.display);this.setStatus("displaySection","processing");window.setTimeout(function(){switch(g){case "parentFile":e=d.proxyFile;m=[];m.push({name:"xcen",value:c.xcen});delete c.xcen;m.push({name:"ycen",value:c.ycen});delete c.ycen;m.push({name:"xdim",value:c.xdim});m.push({name:"ydim",value:c.ydim});void 0!==c.xdim&&(c.xdim=0);void 0!==c.ydim&&(c.ydim=0);c.binMode&&(c.bin=""+c.bin+c.binMode,delete c.binMode);m.push({name:"bin",
-value:c.bin});delete c.bin;m.push({name:"filter",value:c.filter||""});m.push({name:"slice",value:c.slice||""});delete c.slice;f={id:d.expandMacro("$id"),image:d.file,fits:d.parentFile,rtype:"text"};f.cmd="js9Xeq imsection "+d.parentFile;c.extension&&(f.cmd=f.cmd.replace(/\[.*\]/,""),f.cmd+="["+c.extension+"]",delete c.extension);f.cmd+=d.expandMacro(" $xdim@$xcen,$ydim@$ycen,$bin $filter $slice",m);a.helper.send("imsection",f,function(b){b="object"===typeof b?b:0<=b.search(a.analOpts.epattern)?{stderr:b}:
-{stdout:b};if(b.stderr)a.error(b.stderr);else if(b.errcode)a.error("in displaySection: "+b.errcode);else{var f=b.stdout.split(/\n/);b=a.cleanPath(f[0]);"/"!==b.charAt(0)&&(b=a.InstallDir(b));c.proxyFile=b;e&&e!==c.proxyFile&&d.removeProxyFile(e);if(f[1]){try{var g=JSON.parse(f[1])}catch(z){a.log("couldn't parse imsection as JSON: %s",b),g=null}g&&(c.extname=g.extname,c.extnum=g.extnum,c.hdus=g.hdus,c.parent=g)}f[2]&&(g=a.cleanPath(f[2]),c.parentFile=g);c.ltm2obin=!0;a.fetchURL(b,b,c,function(b){a.cleanupFITSFile(d.raw,
-!0);!1!==c.waiting&&a.waiting(!0,d.display);a.fits.handleFITSFile(b,c,q)})}});break;case "virtualFile":a.cleanupFITSFile(d.raw,!1);a.getFITSImage(t.fits,t,c,function(a){q(a,c)});break;default:a.error("image section cannot be extracted from this data file")}},a.SPINOUT)};a.Image.prototype.displayExtension=function(c,b,d){var e=this,g,f,h=function(c){var f=$.extend(!0,{},b);f.separate=!0;if(c===e.hdus.length){if(d)try{a.xeqByName(d,window,e)}catch(p){a.error("in displayExtension callback",p,!1)}}else{var g=
-e.hdus[c];"image"===g.type&&2<=g.naxis?e.displayExtension(g.hdu,f,function(){h(c+1)}):h(c+1)}};b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(m){a.error("can't parse extension opts: "+b,m)}b.waiting=!1;this.hdus||a.error("no FITS HDUs found for displayExtension()");a.isNull(c)&&a.error("missing extname/extnum for displayExtension()");if("all"===c)h(0);else{if("string"===typeof c){b.extension=c;var k=c.toLowerCase();for(f=g=0;g<this.hdus.length;g++)if(this.hdus[g].name&&this.hdus[g].name.toLowerCase()===
-k){f++;break}f||a.error("no FITS HDU "+c+" for displayExtension()")}else"number"===typeof c&&(b.extension=c,this.hdus[c]?k=this.hdus[c].name||c.toString():a.error("no FITS HDU "+c+" for displayExtension()"));if(b.separate){g="["+k+"]";c=this.id.replace(/\[.*\]/,"")+g;for(f=g=0;g<a.images.length;g++){var l=a.images[g];if(c===l.id&&0<$("#"+l.display.id).length&&this.display.id===l.display.id){f++;break}}if(f){l.displayImage("display",b);l.display.clearMessage();if(d)try{a.xeqByName(d,window,this)}catch(m){a.error("in displayExtension callback",
-m,!1)}return}}b.separate||a.cleanupFITSFile(this.raw,!1);this.displaySection(b,d);return this}};a.Image.prototype.displaySlice=function(c,b,d){b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(g){a.error("can't parse slice opts: "+b,g)}b.waiting=!1;void 0===c&&a.error("missing slice for displaySlice()");if("all"===c&&3===this.raw.header.NAXIS)for(this.displaySlice(1,e,d),c=2;c<=this.raw.header.NAXIS3;c++){var e=$.extend(!0,{},b,{separate:!0});this.displaySlice(c,e,d)}else a.isNumber(c)?b.slice=
-"*:*:"+c:b.slice=c,a.cleanupFITSFile(this.raw,!1),this.displaySection(b,d);return this};a.Image.prototype.toArray=function(c){var b,d,e=this.raw.data.buffer;c=c||{};c.simple=!0;c=a.raw2FITS(this.raw,c);var g=2880-c.length%2880;2880===g&&(g=0);for(b=0;b<g;b++)c+=" ";g=2880-e.byteLength%2880;2880===g&&(g=0);b=new ArrayBuffer(c.length+e.byteLength+g);var f=new Uint8Array(b);for(b=0;b<c.length;b++)f[b]=c.charCodeAt(b);if(0<(new Int8Array((new Int16Array([1])).buffer))[0]){var h=c.length;var k=Math.abs(this.raw.bitpix)/
-8;var l=new Uint8Array(e);for(b=0;b<l.byteLength;b+=k){var m=b+k-1;for(d=0;d<k;m--,d++)f[h++]=l[m]}}else f.set(new Uint8Array(e),c.length);h=c.length+e.byteLength;for(b=0;b<g;b++)f[h++]=0;return f};a.Image.prototype.wcsAlign=function(){return this.wcsim&&this.params.wcsalign&&this.display===this.wcsim.display};a.Image.prototype.getPan=function(){var c=this.rgb.sect,b=(c.x0+c.x1)/2,d=(c.y0+c.y1)/2;a.notNull(c.ix)&&(b+=c.ix/(2*c.zoom));a.notNull(c.iy)&&(d+=c.iy/(2*c.zoom));return{x:b,y:d,ox:c.xcen,
-oy:c.ycen,x0:c.x0,y0:c.y0,x1:c.x1,y1:c.y1,ix:c.ix||0,iy:c.iy||0}};a.Image.prototype.setPan=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];var e;var g=$jscomp.makeIterator(b);d=g.next().value;g=g.next().value;if(!(0<=$.inArray("pan",this.params.disable))){0===b.length&&(d=this.raw.width/2,g=this.raw.height/2);if(1===b.length&&"string"===typeof d)if("mouse"===d&&this.ipos)d=this.ipos.x,g=this.ipos.y;else try{d=JSON.parse(d)}catch(m){a.error("can't parse setPan JSON: "+d,m)}if("object"===
-typeof d){b=d;a.notNull(b.x)&&a.notNull(b.y)&&(d=b.x,g=b.y);a.notNull(b.px)&&a.notNull(b.py)&&(g=this.logicalToImagePos({x:b.px,y:b.py}),d=g.x,g=g.y);if("string"===typeof b.wcs){var f=b.wcs.trim().split(/ +/);b.ra=f[0];b.dec=f[1];3<=f.length&&(b.wcssys=f[2])}if(a.notNull(b.ra)&&a.notNull(b.dec)&&0<this.raw.wcs){if(b.wcssys){var h=this.getWCSSys();var k=a.globalOpts.xeqPlugins;a.globalOpts.xeqPlugins=!1;this.setWCSSys(b.wcssys)}"string"===typeof b.ra&&(b.ra=a.saostrtod(b.ra),":"===String.fromCharCode(a.saodtype())&&
-"galactic"!==this.params.wcssys&&"ecliptic"!==this.params.wcssys&&(b.ra*=15));"string"===typeof b.dec&&(b.dec=a.saostrtod(b.dec));f=a.wcs2pix(this.raw.wcs,b.ra,b.dec).trim().split(/ +/);d=parseFloat(f[0]);g=parseFloat(f[1]);h&&(this.setWCSSys(h),a.globalOpts.xeqPlugins=k)}}a.isNumber(d)&&a.isNumber(g)||a.error("invalid input for setPan: "+d+" "+g);if(this.wcsAlign()||this.isawcsim){var l=a.globalOpts.panWithinDisplay;a.globalOpts.panWithinDisplay=!0}this.mkSection(d,g);if(this.wcsAlign()||this.isawcsim){for(h=
+resizeDivs:["JS9Menubar","JS9Colorbar","JS9Toolbar"],pinchWait:8,pinchThresh:6,xeqPlugins:!0,extendedPlugins:!0,intensivePlugins:!1,dynamicSelect:"click",dynamicHighlight:!0,corsProxy:"https://js9.si.edu/cgi-bin/CORS-proxy.cgi",simbadProxy:"https://js9.si.edu/cgi-bin/simbad-proxy.cgi",catalogs:{ras:["RA","_RAJ2000","RAJ2000"],decs:["Dec","_DEJ2000","DEJ2000"],shape:"circle",color:"yellow",width:7,height:7,radius:3.5,r1:5,r2:3.5,wcssys:"ICRS",skip:"#\n",save:!0,tooltip:"$data.ra $data.dec"},topColormaps:"grey heat cool viridis magma sls red green blue".split(" "),
+infoBox:"file object wcsfov wcscen wcspos impos physpos value regions progress".split(" "),infoBoxResize:!0,menuBar:"file edit view zoom scale color region wcs analysis help".split(" "),menubarStyle:"classic",userMenus:!1,userMenuDivider:"&nbsp;&nbsp;&nbsp;",imagesFileSubmenu:5,toolBar:"annulus box circle ellipse line polygon text linear log zoom+ zoom- zoom1".split(" "),syncOps:"colormap contrastbias pan regions scale wcs zoom".split(" "),syncReciprocate:!0,hiddenPluginDivs:[],separate:{layout:"auto",
+leftMargin:10,topMargin:10},imageTemplates:".fits,.fts,.png,.jpg,.jpeg,.fz,.ftz",wcsUnits:{FK4:"sexagesimal",FK5:"sexagesimal",ICRS:"sexagesimal",galactic:"degrees",ecliptic:"degrees",linear:"degrees",physical:"pixels",image:"pixels"},regionTemplates:".reg",sessionTemplates:".ses,.js9ses",colormapTemplates:".cmap",catalogTemplates:".cat,.tab",localTemplates:".fits,.fts",controlsMatchRegion:!1,internalColorPicker:!0,newWindowWidth:530,newWindowHeight:625,debug:0};a.desktopOpts={currentPath:!0,sessionPath:!0};
+a.imageOpts={inherit:!1,contrast:1,bias:.5,invert:!1,exp:1E3,colormap:"grey",scale:"linear",scaleclipping:"dataminmax",scalemin:Number.NaN,scalemax:Number.NaN,flip:"none",rot90:0,zscalecontrast:.25,zscalesamples:600,zscaleline:120,wcssys:"native",lcs:"physical",valpos:!0,opacity:1,sigma:"none",maskOpacity:.4,alpha:255,alpha1:100,zoom:1,zooms:6,topZooms:2,nancolor:"#000000",wcsalign:!0,rotationMode:"relative",crosshair:!1,disable:[],ltvbug:!1,listonchange:!1,whichonchange:"selected"};a.regionOpts=
+{};a.catalogOpts={};a.crosshairOpts={};a.gridOpts={};a.emscriptenOpts={};a.blendOpts={active:!0,mode:"screen",opacity:1};a.analOpts={epattern:/^(ERROR:[^\n]*)\n/,dpathURL:"params/datapath.html",fpathURL:"params/filepath.html"};a.lightOpts={nclick:0,dhtml:{top:".dhtmlwindow",drag:".drag-contentarea",dragBar:"drag-handle",format:"width=%spx,height=%spx,center=1,resize=%s,scrolling=0",textWin:"width=830px,height=400px,center=1,resize=1,scrolling=1",plotWin:"width=830px,height=420px,center=1,resize=1,scrolling=1",
+dpathWin:"width=830px,height=175px,center=1,resize=1,scrolling=1",lcloseWin:"width=512px,height=190px,center=1,resize=1,scrolling=1",paramWin:"width=830px,height=235px,center=1,resize=1,scrolling=1",regWin0:"width=600px,height=72px,center=1,resize=1,scrolling=1",regWin:"width=600px,height=235px,center=1,resize=1,scrolling=1",imageWin:"width=512px,height=598px,center=1,resize=1,scrolling=1",lineWin:"width=400px,height=60px,center=1,resize=1,scrolling=1"},lcloseURL:"params/lightclose.html"};a.textColorOpts=
+{regions:"#00FF00",info:"#00FF00",inimage:"#000000"};a.plotOpts={annotate:!1,annotateColor:"#FF0000",color:"blue",zoomStack:{enabled:!0},selection:{mode:"xy"},series:{clickable:!0,hoverable:!0,lines:{show:!0},points:{show:!1}},legend:{backgroundColor:null,backgroundOpacity:0},xaxis:{autorange:!0},yaxis:{autorange:!0}};a.helpOpts={user:{heading:"JS9Help",type:"help",url:"user.html",title:"User Manual"},install:{heading:"JS9Help",type:"help",url:"install.html",title:"Installing JS9"},webpage:{heading:"JS9Help",
+type:"help",url:"webpage.html",title:"Adding JS9 to a Web Page"},yourdata:{heading:"JS9Help",type:"help",url:"yourdata.html",title:"Adding Data to a Web Page"},localtasks:{heading:"JS9Help",type:"help",url:"localtasks.html",title:"Adding Local Analysis Tasks and Plugins"},helper:{heading:"JS9Help",type:"help",url:"helper.html",title:"Adding Server-side Analysis Tasks"},serverside:{heading:"JS9Help",type:"help",url:"serverside.html",title:"Server-side Analysis with JS9"},publicapi:{heading:"JS9Help",
+type:"help",url:"publicapi.html",title:"The JS9 Public API"},extmsg:{heading:"JS9Help",type:"help",url:"extmsg.html",title:"External Messaging"},desktop:{heading:"JS9Help",type:"help",url:"desktop.html",title:"JS9 on the Desktop"},python:{heading:"JS9Help",type:"help",url:"python.html",title:"JS9 with Python and Jupyter"},archives:{heading:"JS9Help",type:"help",url:"archives.html",title:"Accessing Data Archives"},preferences:{heading:"JS9Help",type:"help",url:"preferences.html",title:"Setting Site Preferences"},
+regions:{heading:"JS9Help",type:"help",url:"regions.html",title:"Regions Format"},changelog:{heading:"JS9Help",type:"help",url:"changelog.html",title:"ChangeLog"},repfile:{heading:"JS9Help",type:"help",url:"repfile.html",title:"Dealing with Large Files"},memory:{heading:"JS9Help",type:"help",url:"memory.html",title:"Dealing with Memory Limitations"},issues:{heading:"JS9Help",type:"help",url:"knownissues.html",title:"Known Issues"}};a.images=[];a.displays=[];a.colormaps=[];a.commands=[];a.plugins=
+[];a.preloads=[];a.auxFiles=[];a.supermenus=[];a.publics={};a.helper={};a.fits={};a.userOpts={};a.preloadwaiting={};a.scales="linear log histeq power sqrt squared asinh sinh".split(" ");a.wcssyss="FK4 FK5 ICRS galactic ecliptic native image physical".split(" ");a.wcsunitss=["degrees","sexagesimal","pixels"];a.bugs={};a.bugs.hide_menu=!1;"Firefox"===a.BROWSER[0]&&0<=a.BROWSER[2].search(/Linux/)&&(a.bugs.firefox_linux=!0);if("Chrome"===a.BROWSER[0]||"Safari"===a.BROWSER[0])a.bugs.webkit_resize=!0;"Chrome"!==
+a.BROWSER[0]&&(a.globalOpts.imageTemplates+=",.gz");/iPad|iPhone|iPod/.test(navigator.platform)&&/11_2_(?:[2-9])/.test(navigator.userAgent)&&(a.globalOpts.useWasm=!1);a.BROWSER[3]&&(a.globalOpts.maxMemory=Math.min(a.globalOpts.maxMemory,35E7),a.globalOpts.table.xdim=2048,a.globalOpts.table.ydim=2048,a.globalOpts.image.xdim=2048,a.globalOpts.image.ydim=2048,a.imageOpts.crosshair=!1,a.globalOpts.reproj={xdim:2048,ydim:2048});window.hasOwnProperty("Jupyter")&&(a.globalOpts.useWasm=!1);if(window.isElectron){"Chrome"===
+a.BROWSER[0]&&66<=parseFloat(a.BROWSER[1])&&(a.globalOpts.allowFileWasm=!0);if(!window.electronVersion||5>parseInt(window.electronVersion,10))a.globalOpts.internalColorPicker=!1;a.hasNode="object"===typeof process&&"function"===typeof require;a.hasNode&&(a.localMount=require("os").hostname()||"localAccess");window.multiElectron&&(a.globalOpts.localStorage=!1)}a.Image=function(c,b,d){var e=this,g=null,f=0,h=0,k=function(b){b=b||{};a.isNull(b.scaleclipping)?"zscale"===e.params.scaleclipping?e.zscale(!0):
+"zmax"===e.params.scaleclipping&&e.zscale("zmax"):"zscale"===b.scaleclipping?e.zscale(!0):"zmax"===b.scaleclipping&&e.zscale("zmax");a.notNull(b.scalemin)&&(e.params.scalemin=b.scalemin);a.notNull(b.scalemax)&&(e.params.scalemax=b.scalemax)},l=function(b){var c,d=a.globalOpts.imopts,f=a.globalOpts.imcmap,h=a.globalOpts.alerts;e.display.clearMessage();a.images.push(e);e.notifyHelper();e.showShapeLayer("regions",!0,{local:!0});g&&g.regions&&e.addShapes("regions",g.regions);a.globalOpts.alerts=!1;if(e.raw&&
+e.raw.header&&e.raw.header[f]){try{var k=JSON.parse(e.raw.header[f])}catch(x){k=null}if(k)try{a.AddColormap(k)}catch(x){}}if(e.raw&&e.raw.header&&e.raw.header[f+"1"]){var l=1;for(c="";100>l;l++){var m=f+String(l);if(e.raw.header[m])c+=e.raw.header[m];else break}if(c){try{k=JSON.parse(c)}catch(x){k=null}if(k)try{a.AddColormap(k)}catch(x){}}}if(e.raw&&e.raw.header&&e.raw.header[d]){try{k=JSON.parse(e.raw.header[d])}catch(x){k=null}if(k)try{e.setParam("all",k)}catch(x){}}if(e.raw&&e.raw.header&&e.raw.header[d+
+"1"]){l=1;for(c="";100>l;l++)if(m=d+String(l),e.raw.header[m])c+=e.raw.header[m];else break;if(c){try{k=JSON.parse(c)}catch(x){k=null}if(k)try{e.setParam("all",k)}catch(x){}}}a.globalOpts.alerts=h;e.xeqPlugins("image","onimageload");e.updateshapes&&e.updateShapes("regions","all","update");e.setStatus("load","complete");a.waiting(!1);if(b)try{a.xeqByName(b,window,e)}catch(x){a.error("in image onload callback",x,!1)}c=e.proxyURL||e.file;b=c.replace(/\[.*\]/,"");if(a.preloadwaiting[c]||a.preloadwaiting[b])if(delete a.preloadwaiting[c],
+delete a.preloadwaiting[b],!Object.keys(a.preloadwaiting).length&&a.notNull(a.globalOpts.onpreload))try{a.xeqByName(a.globalOpts.onpreload,window,e)}catch(x){a.error("in onpreload callback",x,!1)}g&&g.allext&&e.hdus&&0<e.hdus.length&&e.displayExtension("all")};if(b)if("object"===typeof b){if(g=b,g.display)var m=g.display}else m=b;m||(m=0<a.displays.length?a.displays[0].id:a.DEFID);this.type="image";this.display=a.lookupDisplay(m);this.params={};this.regstack=[];this.tmp={};this.params.xeqonchange=
+!0;this.params=$.extend(!0,this.params,a.imageOpts,g);this.display.image&&(this.params.inherit=this.display.image.params.inherit,this.params.inherit&&(this.params=$.extend(!0,this.params,this.display.image.params)));b=a.globalOpts.xeqPlugins;a.globalOpts.xeqPlugins=!1;this.setColormap(this.params.colormap);a.globalOpts.xeqPlugins=b;this.displayMode=!0;this.clickState=0;this.clickInRegion=!1;this.clickInLayer=null;this.queried=!1;g&&g.proxyFile&&(this.proxyFile=g.proxyFile);g&&g.proxyURL&&(this.proxyURL=
+g.proxyURL);g&&g.parentFile&&(this.parentFile=g.parentFile);if(g&&g.parent&&(this.parent=g.parent,this.parent.cardstr&&this.parent.ncard)){this.parent.raw={header:{},history:[],comments:[]};for(b=0;b<this.parent.ncard;b++)m=this.parent.cardstr.slice(80*b,80*(b+1)),m=a.cardpars(m),void 0!==m&&("HISTORY"===m[0]?this.parent.raw.header[m[0]+"__"+f++]=m[1]:"COMMENT"===m[0]?this.parent.raw.header[m[0]+"__"+h++]=m[1]:this.parent.raw.header[m[0]]=m[1]);this.parent.lcs={};a.Image.prototype.initLCS.call(this.parent,
+this.parent.raw.header)}g&&g.id&&(this.id=g.id);this.iy=this.ix=0;this.png={};this.png.image=new Image;this.status={};this.rgb={};this.rgb.sect={zoom:1,ozoom:1};this.layers={};this.zlayer=a.SHAPEZINDEX;this.lcs={};this.aux={};this.binning={bin:1,obin:1};this.raws=[];this.blend=$.extend(!0,{},a.blendOpts);this.updateshapes=!1;if(c)switch(a.waiting(!0,this.display),typeof c){case "object":this.source=g.source||"fits";this.mkRawDataFromHDU(c,$.extend({},{file:c.filename},g));k(g);if(this.params.zoom){var n=
+this.parseZoom(this.params.zoom);this.rgb.sect.zoom=n;this.rgb.sect.ozoom=n}this.mkSection();g&&g.rgbFile?(this.rgbFile=g.rgbFile,$(this.png.image).on("load",function(){if(e.png.image.width!==e.raw.width||e.png.image.height!==e.raw.height){var b=sprintf("rgb dims [%s,%s] don't match image [%s,%s]",e.png.image.width,e.png.image.height,e.raw.width,e.raw.height);a.error(b)}e.mkOffScreenCanvas();e.displayImage("all",g);l(d)}).on("error",function(){a.waiting(!1);a.error("could not load image: "+e.id)}),
+this.png.image.src=this.rgbFile):(this.displayImage("all",g),l(d));break;case "string":this.source=g.source||"fits2png";this.imtab="image";this.file=a.cleanPath(c);this.id0=this.file.split("/").reverse()[0];this.id=a.getImageID(this.id0,this.display.id);this.setStatus("load","loading");$(this.png.image).on("load",function(){e.mkOffScreenCanvas();e.mkRawDataFromPNG();e.params.zoom&&(n=e.parseZoom(e.params.zoom),e.rgb.sect.zoom=n,e.rgb.sect.ozoom=n);k(g);e.mkSection();e.displayImage("all",g);l(d);a.DEBUG&&
+a.log("JS9 image: %s dims(%d,%d) min/max(%d,%d)",e.file,e.raw.width,e.raw.height,e.raw.dmin,e.raw.dmax)}).on("error",function(){a.waiting(!1);a.error("could not load image: "+e.id)});this.png.image.src=c;break;default:a.error("unknown specification type for Load: "+typeof c)}};a.Image.prototype.getImageData=function(a){var b=null,c=this.fileDimensions(),e=c.xdim;c=c.ydim;if(a)if("array"===a)b=Array.from(this.raw.data);else if("base64"===a){b="";var g=new Uint8Array(this.raw.data.buffer),f=g.byteLength;
+for(a=0;a<f;a++)b+=String.fromCharCode(g[a]);b=window.btoa(b)}else a&&"false"!==a&&(b=this.raw.data);return{id:this.id,file:this.file,fits:this.fitsFile||"",source:this.source,imtab:this.imtab,width:this.raw.width,height:this.raw.height,bitpix:this.raw.bitpix,bin:this.binning.bin,header:this.raw.header,hdus:this.hdus,dwidth:this.display.width,dheight:this.display.height,fwidth:e,fheight:c,data:b}};a.Image.prototype.closeImage=function(c){var b,d=!1;var e=a.images.length;var g=a.Dysel.getDisplayOr(this.display);
+c=c||{};if("string"===typeof c)try{c=JSON.parse(c)}catch(h){a.error("can't parse closeImage opts: "+c,h)}for(b=0;b<e;b++)a.images[b].wcsim===this&&(a.images[b].wcsim=null);for(b=0;b<e;b++)if(this===a.images[b]){e=a.images[b];e===e.display.image&&(d=b+1);if(d)for(f in!1!==c.clear&&(e.display.clearMessage(),e.display.context.clear()),e.layers)e.layers.hasOwnProperty(f)&&("main"===e.layers[f].dlayer.dtype||e.display===g)&&e.showShapeLayer(f,!1,{local:!0});e.xeqPlugins("image","onimageclose");d&&(e.display.image=
+null);switch(e.cmapObj.name){case "red":a.globalOpts.rgb.rim=null;break;case "green":a.globalOpts.rgb.gim=null;break;case "blue":a.globalOpts.rgb.bim=null}for(c=0;c<e.raws.length;c++){var f=e.raws[c];f.hdu&&f.hdu.fits&&(g=a.lookupVfile(f.hdu.fits.vfile),1>=g.length&&a.cleanupFITSFile(f,!0));f.altwcs&&this.freeWCS(f)}e.removeProxyFile();e.rgb=null;e.offscreen=null;e.raw=null;e.colorData=null;e.colorCells=null;e.psColors=null;e.psInverse=null;a.images.splice(b,1);break}if(d){for(b=d-=2;0<=b;b--)if(e=
+a.images[b],this.display===e.display){e.displayImage("all");e.refreshLayers();d=a.images.length;break}for(b=a.images.length-1;b>d;b--)if(e=a.images[b],this.display===e.display){e.displayImage("all");e.refreshLayers();break}}};a.Image.prototype.mkOffScreenCanvas=function(){if(!this.png||!this.png.image)return this;this.offscreen={};this.offscreen.canvas=document.createElement("canvas");this.offscreen.canvas.setAttribute("width",this.png.image.width);this.offscreen.canvas.setAttribute("height",this.png.image.height);
+this.offscreen.context=this.offscreen.canvas.getContext("2d");a.ANTIALIAS||(this.offscreen.context.imageSmoothingEnabled=!1,this.offscreen.context.webkitImageSmoothingEnabled=!1,this.offscreen.context.msImageSmoothingEnabled=!1);this.offscreen.context.drawImage(this.png.image,0,0);try{this.offscreen.img=this.offscreen.context.getImageData(0,0,this.png.image.width,this.png.image.height)}catch(c){a.CHROMEFILEWARNING&&"Chrome"===a.BROWSER[0]&&""===document.domain?alert("When using the file:// URI, Chrome must be run with the --allow-file-access-from-files switch to permit JS9 to access data."):
+alert("could not read off-screen image data [same-origin policy violation?]")}return this};a.Image.prototype.initLCS=function(c){var b=[[0,0,0],[0,0,0],[0,0,0]];c=c||this.raw.header;var d=c.CRPIX1||1,e=c.CRPIX2||1;if(c.LCSROTA2&&c.CROTA2){var g=-c.CROTA2*Math.PI/180;var f=Math.sin(g);var h=Math.cos(g);g=[[0,0,0],[0,0,0],[0,0,0]];g[0][0]=h;g[0][1]=-f;g[0][2]=0;g[1][0]=f;g[1][1]=h;g[1][2]=0;(f=a.invertMatrix3(g))||(g=null)}b[0][0]=a.defNull(c.LTM1_1,1);b[1][0]=c.LTM2_1||0;b[0][1]=c.LTM1_2||0;b[1][1]=
+a.defNull(c.LTM2_2,1);b[2][0]=c.LTV1||0;b[2][1]=c.LTV2||0;if("image"===this.imtab&&this.params.ltvbug){if(a.notNull(c.LTV1))for(h=0;2>h;h++){var k=Math.abs(b[0][h]);0<k&&1>k&&(b[2][0]+=.5*k)}if(a.notNull(c.LTV2))for(h=0;2>h;h++)k=Math.abs(b[1][h]),0<k&&1>k&&(b[2][1]+=.5*k)}this.lcs.physical={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.physical.reverse?g&&(this.lcs.physical.frot=$.extend(!0,[],g),this.lcs.physical.rrot=$.extend(!0,[],f),this.lcs.physical.cx=d-b[2][0]-1,this.lcs.physical.cy=
+e-b[2][1]-1):delete this.lcs.physical;b[0][0]=a.defNull(c.DTM1_1,1);b[1][0]=c.DTM2_1||0;b[0][1]=c.DTM1_2||0;b[1][1]=a.defNull(c.DTM2_2,1);b[2][0]=c.DTV1||0;b[2][1]=c.DTV2||0;this.lcs.detector={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.detector.reverse?g&&(this.lcs.detector.frot=$.extend(!0,[],g),this.lcs.detector.rrot=$.extend(!0,[],f),this.lcs.detector.cx=d-b[2][0]-1,this.lcs.detector.cy=e-b[2][1]-1):delete this.lcs.detector;b[0][0]=a.defNull(c.ATM1_1,1);b[1][0]=c.ATM2_1||0;
+b[0][1]=c.ATM1_2||0;b[1][1]=a.defNull(c.ATM2_2,1);b[2][0]=c.ATV1||0;b[2][1]=c.ATV2||0;this.lcs.amplifier={forward:$.extend(!0,[],b),reverse:a.invertMatrix3(b)};this.lcs.amplifier.reverse?g&&(this.lcs.amplifier.frot=$.extend(!0,[],g),this.lcs.amplifier.rrot=$.extend(!0,[],f),this.lcs.amplifier.cx=d-b[2][0]-1,this.lcs.amplifier.cy=e-b[2][1]-1):delete this.lcs.amplifier;this.params&&!this.lcs[this.params.lcs]&&(this.params.lcs="image");this.params&&!this.params.wcssys0&&(this.setWCSSys("physical"),this.params.wcssys0=
+this.params.lcs);this.lcs.physical&&!this.lcs.ophysical&&(this.lcs.ophysical=$.extend(!0,{},this.lcs.physical));return this};a.Image.prototype.mkRawDataFromIMG=function(c){var b,d;if(c){var e=c.height;var g=c.width;var f=c.data;this.raws.push({from:"img"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;this.raw.data=new Float32Array(e*g);for(d=c=0;d<e;d++)for(b=0;b<g;b++){var h=.299*f[c]+.587*f[c+1]+.114*f[c+2];this.raw.data[(e-d)*g+b]=h;c+=4}this.raw.width=g;this.raw.height=e;this.raw.bitpix=
+-32;this.dataminmax();this.source="png";this.raw.header={SIMPLE:!0,NAXIS:2,NAXIS1:this.raw.width,NAXIS2:this.raw.height,BITPIX:this.raw.bitpix};this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");return this}};a.Image.prototype.mkRawDataFromPNG=function(){var c,b,d;var e=b=0;var g=[];var f=new ArrayBuffer(8);var h=new Uint8Array(f),k=new DataView(f);if(!this.offscreen.img)return this;this.raws.push({from:"png"});this.raw=this.raws[this.raws.length-1];this.raw.id=a.RAWID0;var l=this.offscreen.img.data;
+for(c=f=0;f<l.length&&0!==l[f];f++)if(255!==l[f]&&(g[c]=String.fromCharCode(l[f]),c++),15===c&&'{"js9Protocol":'!==g.join("")){var m=!0;break}if(15>c||m)this.mkRawDataFromIMG(this.offscreen.img);else{c=g.join("");2<a.DEBUG&&a.log("jsonHeader: %s",c);try{var n=JSON.parse(c)}catch(p){a.error("can't read FITS header from PNG file: "+c,p)}if(1===n.js9Protocol)this.raw.header=n,this.raw.endian=this.raw.header.js9Endian,this.raw.protocol=this.raw.header.js9Protocol;else for(this.raw.endian=n.js9Endian,
+this.raw.protocol=n.js9Protocol,this.raw.cardstr=n.cardstr,this.raw.ncard=n.ncard,this.raw.header={},n=this.raw.ncard,c=0;c<n;c++)m=this.raw.cardstr.slice(80*c,80*(c+1)),m=a.cardpars(m),void 0!==m&&("HISTORY"===m[0]?this.raw.header[m[0]+"__"+b++]=m[1]:"COMMENT"===m[0]?this.raw.header[m[0]+"__"+e++]=m[1]:this.raw.header[m[0]]=m[1]);f+=1;this.raw.header.NAXIS1?this.raw.width=this.raw.header.NAXIS1:a.error("NAXIS1 missing from PNG-based FITS header");this.raw.header.NAXIS2?this.raw.height=this.raw.header.NAXIS2:
+a.error("NAXIS2 missing from PNG-based FITS header");this.raw.header.BITPIX?this.raw.bitpix=this.raw.header.BITPIX:a.error("BITPIX missing from PNG-based FITS header");"little"===this.raw.endian?d=!0:"big"===this.raw.endian?d=!1:a.error("js9Endian missing from PNG-based FITS header");this.object=this.raw.header.OBJECT;this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;b=this.raw.width*this.raw.height;e=f%4;switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(b);
+for(c=0;c<b;c++){switch(e){case 0:var q=l[f];f+=1;e=1;break;case 1:q=l[f];f+=1;e=2;break;case 2:q=l[f];f+=2;e=0;break;case 3:q=l[f+1],f+=2,e=1}this.raw.data[c]=q}break;case 16:case -16:16===this.raw.bitpix?(this.raw.data=new Int16Array(b),n=DataView.prototype.getInt16):(this.raw.data=new Uint16Array(b),n=DataView.prototype.getUint16);for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=2;e=2;break;case 1:h[0]=l[f];h[1]=l[f+1];q=n.call(k,0,d);f+=3;e=0;break;case 2:h[0]=l[f];h[1]=
+l[f+2];q=n.call(k,0,d);f+=3;e=1;break;case 3:h[0]=l[f+1],h[1]=l[f+2],q=n.call(k,0,d),f+=3,e=2}this.raw.data[c]=q}break;case 32:case -32:32===this.raw.bitpix?(this.raw.data=new Int32Array(b),n=DataView.prototype.getInt32):(this.raw.data=new Float32Array(b),n=DataView.prototype.getFloat32);for(c=0;c<b;c++){switch(e){case 0:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=1;break;case 1:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=5;e=2;break;case 2:h[0]=l[f];
+h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];q=n.call(k,0,d);f+=6;e=0;break;case 3:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],q=n.call(k,0,d),f+=6,e=1}this.raw.data[c]=q}break;case -64:this.raw.data=new Float64Array(b);for(c=0;c<b;c++){switch(e){case 0:case 4:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+2];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+6];h[6]=l[f+8];h[7]=l[f+9];q=k.getFloat64(0,d);f+=10;e=2;break;case 1:case 5:h[0]=l[f];h[1]=l[f+1];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+5];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+9];q=k.getFloat64(0,
+d);f+=11;e=0;break;case 2:case 6:h[0]=l[f];h[1]=l[f+2];h[2]=l[f+3];h[3]=l[f+4];h[4]=l[f+6];h[5]=l[f+7];h[6]=l[f+8];h[7]=l[f+10];q=k.getFloat64(0,d);f+=11;e=1;break;case 3:case 7:h[0]=l[f+1],h[1]=l[f+2],h[2]=l[f+3],h[3]=l[f+5],h[4]=l[f+6],h[5]=l[f+7],h[6]=l[f+9],h[7]=l[f+10],q=k.getFloat64(0,d),f+=11,e=2}this.raw.data[c]=q}break;default:a.error("unsupported bitpix in PNG file: "+this.raw.bitpix)}this.dataminmax();this.offscreen.img=null;this.initWCS();this.initLCS();this.xeqPlugins("image","onrawdata");
+return this}};a.Image.prototype.mkRawDataFromHDU=function(c,b){var d=this,e,g,f,h;var k=h=0;b=b||{};if($.isArray(c)||a.isTypedArray(c)||c instanceof ArrayBuffer){$.isArray(c[0])&&(c=c.reduce(function(a,b){return a.concat(b)}));var l={image:c}}else"object"===typeof c?l=c:a.error("unknown or missing input for HDU creation");l.data&&!l.image&&(l.image=l.data);l.image||a.error("data missing from JS9 FITS object: "+JSON.stringify(l));2>l.naxis&&a.error("can't image a FITS file with less than 2 dimensions");
+if(this.raw){var m=this.raw;var n=this.raw.width;var q=this.raw.height;var p=this.raw.bitpix;var t=a.defNull(this.raw.header.LTM1_1,1);var r=this.params.wcssys;var u=this.params.wcsunits;this.freeWCS()}this.raws=this.raws||[];if(f=this.raws.length){b.rawid=b.rawid||a.RAWIDX;for(e=g=0;e<f;e++)if(b.rawid===this.raws[e].id){var v=this.raws[e].from;this.raws[e]={from:v,id:b.rawid};this.raw=this.raws[e];g++;break}g||(this.raws.push({from:"hdu",id:b.rawid}),this.raw=this.raws[f],m=null)}else this.raws.push({from:"hdu"}),
+this.raw=this.raws[f],this.raw.id=a.RAWID0;this.raw.hdu=l;l.axis?(this.raw.width=l.axis[1],this.raw.height=l.axis[2]):l.naxis1&&l.naxis2?(this.raw.width=l.naxis1,this.raw.height=l.naxis2):n&&q&&(this.raw.width=n,this.raw.height=q);l.bitpix?this.raw.bitpix=l.bitpix:p&&(this.raw.bitpix=p);if("base64"===l.encoding)for(v=window.atob(l.image),l.image=new ArrayBuffer(v.length),g=new Uint8Array(l.image),e=0;e<v.length;e++)g[e]=v.charCodeAt(e);$.isArray(l.image[0])&&(l.image=l.image.reduce(function(a,b){return a.concat(b)}));
+switch(this.raw.bitpix){case 8:this.raw.data=new Uint8Array(l.image);break;case 16:this.raw.data=new Int16Array(l.image);break;case -16:this.raw.data=new Uint16Array(l.image);break;case 32:this.raw.data=new Int32Array(l.image);break;case -32:this.raw.data=new Float32Array(l.image);break;case -64:this.raw.data=new Float64Array(l.image)}this.raw.card=l.card;this.raw.cardstr=l.cardstr;this.raw.ncard=l.ncard;if(l.head)this.raw.header=l.head;else if(this.raw.card)for(this.raw.header={},g=this.raw.card.length,
+e=0;e<g;e++)f=a.cardpars(this.raw.card[e]),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else if(this.raw.cardstr)for(this.raw.header={},g=this.raw.ncard,e=0;e<g;e++)f=this.raw.cardstr.slice(80*e,80*(e+1)),f=a.cardpars(f),void 0!==f&&("HISTORY"===f[0]?this.raw.header[f[0]+"__"+h++]=f[1]:"COMMENT"===f[0]?this.raw.header[f[0]+"__"+k++]=f[1]:this.raw.header[f[0]]=f[1]);else this.raw.header={},this.raw.header.SIMPLE=
+!0,this.raw.header.NAXIS=2,this.raw.header.NAXIS1=this.raw.width,this.raw.header.NAXIS2=this.raw.height,this.raw.header.BITPIX=this.raw.bitpix;e=this.raw.header;m||this.parentFile||this.parent||void 0===e.LTV1&&void 0===e.LTV2&&void 0===e.LTM1_1&&void 0===e.LTM2_2||(this.parent={},this.parent.raw={header:$.extend(!0,{},e)},this.parent.lcs={},a.Image.prototype.initLCS.call(this.parent,this.parent.raw.header));if("image"===l.imtab&&void 0!==l.x1&&1!==l.x1||void 0!==l.y1&&1!==l.y1||void 0===l.bin||1!==
+l.bin)g=l.bin||1,h=void 0!==l.x1?l.x1:0,k=void 0!==l.y1?l.y1:0,void 0!==e.NAXIS1&&(e.NAXIS1/=g),void 0!==e.NAXIS2&&(e.NAXIS2/=g),void 0!==e.CRPIX1&&(e.CRPIX1=(e.CRPIX1-h)/g+.5),void 0!==e.CRPIX2&&(e.CRPIX2=(e.CRPIX2-k)/g+.5),void 0!==e.CDELT1&&(e.CDELT1*=g),void 0!==e.CDELT2&&(e.CDELT2*=g),void 0!==e.CD1_1&&(e.CD1_1*=g),void 0!==e.CD1_2&&(e.CD1_2*=g),void 0!==e.CD2_1&&(e.CD2_1*=g),void 0!==e.CD2_2&&(e.CD2_2*=g),e.LTM1_1=a.defNull(e.LTM1_1,1),e.LTM1_1/=g,e.LTM2_1=e.LTM2_1||0,e.LTM2_1/=g,e.LTM1_2=e.LTM1_2||
+0,e.LTM1_2/=g,e.LTM2_2=a.defNull(e.LTM2_2,1),e.LTM2_2/=g,e.LTV1=e.LTV1||0,e.LTV1=(e.LTV1-h)/g+.5,e.LTV2=e.LTV2||0,e.LTV2=(e.LTV2-k)/g+.5;b.lcsUseRota2&&(e.LCSROTA2=!0);b.file&&b.file!==this.file?(this.file=b.file,this.id=null):b.filename&&b.filename!==this.file?(this.file=b.filename,this.id=null):l.filename&&l.filename!==this.file&&(this.file=l.filename,this.id=null);this.file0=this.file=this.file||a.ANON+a.uniqueID();b.id&&(this.id0=b.id,this.id=a.getImageID(b.id,this.display.id,this));this.id||
+!this.file||this.file.match(/\[.*[^a-zA-Z0-9_].*\]/)||(b.extname||b.extnum?(b.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extname+"]"):b.extnum&&0<b.extnum&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+b.extnum+"]"),l&&l.fits&&(b.extname&&(l.fits.extname=b.extname),b.extnum&&0<b.extnum&&(l.fits.extnum=b.extnum))):l.fits?l.fits.extname?(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+l.fits.extname+"]"):l.fits.extnum&&0<l.fits.extnum&&(this.file=this.file.replace(/\[.*\]/,
+""),this.file+="["+l.fits.extnum+"]"):this.raw.header&&this.raw.header.EXTNAME&&(this.file=this.file.replace(/\[.*\]/,""),this.file+="["+this.raw.header.EXTNAME+"]"));this.id||(this.id0=(this.parentFile||this.file).split("/").reverse()[0],this.id=a.getImageID(this.id0,this.display.id,this));b.proxyFile&&(this.proxyFile=b.proxyFile);this.raw.filter=b.filter||"";this.imtab=l.imtab?l.imtab:l.table?"table":"image";this.raw.imtab=this.imtab;void 0!==l.dmin&&void 0!==l.dmax?this.dataminmax(l.dmin,l.dmax):
+this.dataminmax();this.object=this.raw.header.OBJECT;this.telescope=this.raw.header.TELESCOP;this.instrument=this.raw.header.INSTRUME;this.binning.bin="table"===this.imtab&&l.table?l.table.bin||1:l.bin?l.bin:1;b.ltm2obin&&e.LTM1_1?this.binning.obin=e.LTM1_1/t:m||(this.binning.obin=this.binning.bin);this.initWCS();r&&this.setWCSSys(r);u&&this.setWCSUnits(u);this.initLCS();try{if(b.hdus)this.hdus=b.hdus;else if(this.parentFile&&a.helper.connected&&a.helper.js9helper)c={id:this.expandMacro("$id"),cmd:this.expandMacro("js9Xeq listhdus $filename"),
+image:this.file,fits:this.parentFile,rtype:"text"},a.helper.send("listhdus",c,function(a){if(!a.stderr&&!a.errcode&&a.stdout)try{d.hdus=JSON.parse(a.stdout)}catch(w){d.hdus=null}});else if(this.raw&&this.raw.hdu&&this.raw.hdu.fits&&(v=a.listhdu(this.raw.hdu.fits.vfile)))try{this.hdus=JSON.parse(v)}catch(y){this.hdus=null}}catch(y){}if(this.raw.hdu.fits&&this.raw.hdu.fits.vfile){v=a.globalOpts.clearImageMemory;v=!1===v?["never"]:!0===v?["always"]:v.toLowerCase().split(/[,>]/);m=c=!1;e=0;for(b=!1;e<
+v.length&&!b;e++)switch(v[e]){case "never":c=!1;b=!0;break;case "always":b=c=!0;break;case "heap":m=!0;break;case "auto":2>=this.raw.header.NAXIS&&(!this.hdus||1===this.hdus.length)?c=!0:(c=!1,b=!0);break;case "nocube":2>=this.raw.header.NAXIS?c=!0:(c=!1,b=!0);break;case "noext":this.hdus&&1!==this.hdus.length?(c=!1,b=!0):c=!0;break;case "size":v[e+1]?a.vsize(l.fits.vfile)>1E6*v[e+1]?c=!0:(c=!1,b=!0):(c=!1,b=!0)}c?(2<a.DEBUG&&a.log("removing underlying FITS vfile for %s: %s",this.id,this.raw.hdu.fits.vfile),
+a.cleanupFITSFile(this.raw,!0)):m&&(2<a.DEBUG&&a.log("freeing heap space for %s: %s",this.id,this.raw.hdu.fits.vfile),a.cleanupFITSFile(this.raw,!1))}this.xeqPlugins("image","onrawdata");return this};a.Image.prototype.mkSection=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];d=this.rgb.sect;d.ozoom=d.zoom;switch(b.length){case 0:d.xcen=Math.floor(this.raw.width/2);d.ycen=Math.floor(this.raw.height/2);d.width=Math.min(this.raw.width,this.display.canvas.width);d.height=Math.min(this.raw.height,
+this.display.canvas.height);break;case 1:a.isNumber(b[0])||a.error("invalid input for generating section: "+b[0]);d.zoom=parseFloat(b[0]);d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width);d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height);break;case 2:a.isNumber(b[0])&&a.isNumber(b[1])||a.error("invalid input for generating section: "+b[0]+" "+b[1]);d.xcen=parseFloat(b[0]);d.ycen=parseFloat(b[1]);a.notNull(d.ix)&&(d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width));
+a.notNull(d.iy)&&(d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height));break;case 3:a.isNumber(b[0])&&a.isNumber(b[1])&&a.isNumber(b[2])||a.error("invalid input for generating section: "+b[0]+" "+b[1]+" "+b[2]),d.xcen=parseFloat(b[0]),d.ycen=parseFloat(b[1]),d.zoom=parseFloat(b[2]),d.width=Math.min(this.raw.width*d.zoom,this.display.canvas.width),d.height=Math.min(this.raw.height*d.zoom,this.display.canvas.height)}delete d.ix;delete d.iy;d.x0=d.xcen-d.width/(2*d.zoom);d.y0=d.ycen-
+d.height/(2*d.zoom);d.x1=d.xcen+d.width/(2*d.zoom);d.y1=d.ycen+d.height/(2*d.zoom);0>d.x0&&(a.globalOpts.panWithinDisplay?d.x1-=d.x0:d.ix=d.x0*d.zoom,d.x0=0);0>d.y0&&(a.globalOpts.panWithinDisplay?d.y1-=d.y0:d.iy=d.y0*d.zoom,d.y0=0);d.x1>this.raw.width&&(a.globalOpts.panWithinDisplay?d.x0-=d.x1-this.raw.width:d.ix=(d.x1-this.raw.width)*d.zoom,d.x1=this.raw.width);d.y1>this.raw.height&&(a.globalOpts.panWithinDisplay?d.y0-=d.y1-this.raw.height:d.iy=(d.y1-this.raw.height)*d.zoom,d.y1=this.raw.height);
+0<d.ix&&0<d.x0&&(b=Math.min(d.ix,d.x0),d.x0-=b,d.ix+=b*d.zoom);0>d.ix&&d.x1<this.raw.width&&(b=Math.min(this.raw.width-d.x1,Math.abs(d.ix)),d.x1+=b,d.ix-=b*d.zoom);0<d.iy&&0<d.y0&&(b=Math.min(d.iy,d.y0),d.y0-=b,d.iy+=b*d.zoom);0>d.iy&&d.y1<this.raw.height&&(b=Math.min(this.raw.height-d.y1,Math.abs(d.iy)),d.y1+=b,d.iy-=b*d.zoom);d.x0=Math.max(0,d.x0);d.x1=Math.min(this.raw.width,d.x1);d.y0=Math.max(0,d.y0);d.y1=Math.min(this.raw.height,d.y1);d.x0=Math.floor(d.x0);d.y0=Math.floor(d.y0);d.x1=Math.floor(d.x1);
+d.y1=Math.floor(d.y1);d.width=Math.ceil((d.x1-d.x0)*d.zoom);d.height=Math.ceil((d.y1-d.y0)*d.zoom);if(0>=d.width||0>=d.height)b=sprintf("invalid image section: %s,%s [%s,%s, %s,%s, %s]",d.width,d.height,d.x0,d.y0,d.x1,d.y1,d.zoom),a.error(b);this.offscreenRGB=null;this.params.zoom=d.zoom;return this};a.Image.prototype.mkColorData=function(){var c,b=a.SCALESIZE,d=this.params.scalemin,e=this.params.scalemax,g=this.raw.width*this.raw.height,f=(b-1)/(e-d);if(!this.colorData||this.colorData.length<g)this.colorData=
+new Int32Array(g);for(c=0;c<g;c++){var h=this.raw.data[c];this.colorData[c]=h<=d?0:h>=e?b-1:Math.floor((h-d)*f+.5)}return this};a.Image.prototype.calcContrastBias=function(c){var b=this.params.bias,d=a.COLORSIZE,e=this.params.contrast;if(1E-4>b-.5&&1E-4>e-1)return c;this.params.invert&&(b=1-b);c=Math.floor(((c/d-b)*e+.5)*d);return 0>c?0:c>=d?d-1:c};a.Image.prototype.mkColorCells=function(){var c,b=a.COLORSIZE;this.colorCells||(this.colorCells=[]);for(c=0;c<b;c++){var d=this.params.invert?b-c-1:c;
+d=this.calcContrastBias(d);this.colorCells[c]=this.cmapObj.mkColorCell(d)}return this};a.Image.prototype.mkScaledCells=function(){var c,b;var d=a.COLORSIZE;var e=a.SCALESIZE,g=a.INVSIZE;var f=a.HISTSIZE;if(!this.colorCells)return this;if(!this.psColors){var h=this.psColors=[];var k=this.params.nancolor;var l=[];"#"===k.charAt(0)&&(k=k.slice(1));k=k.toUpperCase();for(c=b=0;6>b;b+=2,c++){var m="0123456789ABCDEF".indexOf(k.charAt(b));var n="0123456789ABCDEF".indexOf(k.charAt(b+1));l[c]=16*m+n}h[NaN]=
+l}this.psInverse||(this.psInverse=[],this.psInverse[NaN]=0);k=this.params.scalemax-this.params.scalemin;b=this.params.scalemin;switch(this.params.scale){case "linear":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*k+b;break;case "log":f=this.params.exp;for(h=0;h<e;h++)c=Math.log(f*h/e+1)/Math.log(f),c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=(Math.pow(f,h/g)-1)/f,this.psInverse[h]=c*k+
+b;break;case "power":f=this.params.exp;for(h=0;h<e;h++)c=(Math.pow(f,h/e)-1)/f,c=Math.floor(c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=Math.log(f*h/g+1)/Math.log(f),this.psInverse[h]=c*k+b;break;case "sqrt":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.sqrt(c)*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,this.psInverse[h]=c*c*k+b;break;case "squared":for(h=0;h<e;h++)c=h/e,c=Math.floor(c*c*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=
+0;h<g;h++)c=Math.sqrt(h/g),this.psInverse[h]=c*k+b;break;case "asinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.asinh(10*c)/3*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.sinh(3*c)/10,this.psInverse[h]=c*k+b;break;case "sinh":for(h=0;h<e;h++)c=h/e,c=Math.floor(Math.sinh(3*c)/10*d),c>=d&&(c=d-1),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++)c=h/g,c=Math.asinh(10*c)/3,this.psInverse[h]=c*k+b;break;case "histeq":l=this.raw.data;var q=this.raw.width*this.raw.height;
+k=this.raw.dmax-this.raw.dmin;var p=this.raw.dmax;b=this.raw.dmin;var t=c=0;m=[];if(!this.hist||!this.hist.length){this.hist=[];for(h=0;h<f;h++)m[h]=0;for(h=0;h<q;h++)l[h]>=b&&l[h]<=p&&(n=Math.floor((l[h]-b)/k*f+.5),n<f&&(m[n]+=1));for(h=0;h<f;h++)t+=m[h];n=t/f;for(h=l=0;h<f&&l<f;h++)for(this.hist[h]=l/f,c+=m[h];c>=n&&l<f;)c-=n,l++;for(c=(f-1)/f;h<f;)this.hist[h++]=c}for(h=0;h<e;h++)c=this.hist[h*f/e],c=Math.floor(c*d),this.psColors[h]=this.colorCells[c];for(h=0;h<g;h++){d=h/g;for(n=0;n<f-1&&!(this.hist[n]>
+d);n++);c=n/f;this.psInverse[h]=c*k+b}break;default:a.error("unknown scale '"+this.params.scale+"'")}return this};a.Image.prototype.mkRGBImage=function(){var c,b,d,e,g=null,f=null,h=null,k=!1;if(!this.rgb)return this;!a.globalOpts.rgb.active||this!==a.globalOpts.rgb.rim&&this!==a.globalOpts.rgb.gim&&this!==a.globalOpts.rgb.bim||(k=!0,a.globalOpts.rgb.rim&&(g=a.globalOpts.rgb.rim),a.globalOpts.rgb.gim&&(f=a.globalOpts.rgb.gim),a.globalOpts.rgb.bim&&(h=a.globalOpts.rgb.bim));var l=this.display.context;
+var m=this.rgb;var n=m.sect;if(this.MakeRGBImage&&"function"===typeof this.MakeRGBImage&&this.MakeRGBImage()||this.MakePrimaryImage&&"function"===typeof this.MakePrimaryImage&&this.MakePrimaryImage())return this;if(this.rgbFile){var q=n.width/n.zoom;var p=n.height/n.zoom;var t=n.x0;var r=this.offscreen.canvas.height-1-(n.y0+p);r=this.offscreen.context.getImageData(t,r,q,p);if(1===n.zoom)m.img=r;else for(m.img=l.createImageData(n.width,n.height),m=m.img,d=c=0;c<r.height;c++,d++){var u=c*r.width;var v=
+d*n.zoom;for(b=l=0;l<r.width;l++,b++){t=4*(u+l);var y=b*n.zoom;for(e=0;e<n.zoom;e++){var w=Math.floor(v+e);var x=w*n.width;for(w=0;w<n.zoom;w++){var z=Math.floor(y+w);z=4*(x+z);m.data[z]=r.data[t];m.data[z+1]=r.data[t+1];m.data[z+2]=r.data[t+2];m.data[z+3]=r.data[t+3]}}}}return this}m.img&&m.img.width===n.width&&m.img.height===n.height||(m.img=l.createImageData(n.width,n.height));m=m.img;if(!this.psColors)return this;var A=void 0!==this.params.opacity?255*this.params.opacity:void 0!==this.params.alpha?
+this.params.alpha:255;this.maskData&&(this.params.maskInvert?void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.opacity,q=255*this.params.maskOpacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?(r=this.params.alpha2,q=this.params.alpha1):(r=0,q=255):void 0!==this.params.opacity&&void 0!==this.params.maskOpacity?(r=255*this.params.maskOpacity,q=255*this.params.opacity):void 0!==this.params.alpha1&&void 0!==this.params.alpha2?(r=this.params.alpha1,q=this.params.alpha2):
+(r=255,q=0));var B=Math.max(1,Math.floor(1/n.zoom));var E=n.zoom*B;c=Math.floor(n.y1-1);for(d=0;c>=n.y0;c-=B,d++)for(u=c*this.raw.width,v=d*E,l=Math.floor(n.x0),b=0;l<n.x1;l+=B,b++){if(k){p=g?g.colorData[u+l]:0;var C=f?f.colorData[u+l]:0;var F=h?h.colorData[u+l]:0;if(void 0===p||void 0===C||void 0===F)return a.globalOpts.rgb.active=!1,a.error("RGB images are incompatible. Turning off RGB mode.","",!1),this.mkRGBImage(),this}else t=this.colorData[u+l];this.maskData&&(A=0<this.maskData[u+l]?r:q);y=
+b*E;for(e=0;e<n.zoom;e++)for(w=Math.ceil(v+e),x=w*n.width,w=0;w<n.zoom;w++)if(z=Math.ceil(y+w),z=4*(x+z),z<m.data.length){if(k)m.data[z]=g?g.psColors[p][0]:0,m.data[z+1]=f?f.psColors[C][1]:0,m.data[z+2]=h?h.psColors[F][2]:0;else{if(void 0===this.psColors[t]){var D=sprintf("invalid image access: %s,%s",l,c);a.error(D)}m.data[z]=this.psColors[t][0];m.data[z+1]=this.psColors[t][1];m.data[z+2]=this.psColors[t][2]}m.data[z+3]=A}}return this};a.Image.prototype.blendImage=function(c){for(var b=[],d=0;d<
+arguments.length;++d)b[d-0]=arguments[d];var e=$jscomp.makeIterator(b);d=e.next().value;var g=e.next().value;e=e.next().value;var f=/normal|multiply|screen|overlay|darken|lighten|color-dodge|color-burn|hard-light|soft-light|difference|exclusion|hue|saturation|color|luminosity|clear|copy|source-over|destination-over|source-in|destination-in|source-out|destination-out|source-atop|destination-atop|xor|lighter/i;if(0===b.length)return this.blend;if(!0===d||!1===d||"true"===d||"false"===d)return"true"===
+d?d=!0:"false"===d&&(d=!1),this.blend.active=d,this.xeqPlugins("image","onimageblend"),this.display.blendMode&&this.displayImage(),this;if(a.notNull(d)||a.notNull(g))a.notNull(d)&&(f.test(d)||a.error("invalid composite/blend operation: "+d),this.blend.mode=d),a.notNull(g)&&("string"===typeof g?g=parseFloat(g):"number"!==typeof g&&a.error("invalid opacity: "+g),this.blend.opacity=Math.min(Math.max(g,0),1)),a.notNull(e)&&("true"===e?e=!0:"false"===e&&(e=!1),this.blend.active=e),this.xeqPlugins("image",
+"onimageblend"),this.display.blendMode&&this.blend.active&&this.displayImage();return this};a.Image.prototype.calcDisplayOffsets=function(c){var b=this.rgb.sect;this.ix=(this.display.canvas.width-this.rgb.img.width)/2;this.iy=(this.display.canvas.height-this.rgb.img.height)/2;a.notNull(b.ix)&&(this.ix-=b.ix/2);a.notNull(b.iy)&&(this.iy+=b.iy/2);this.ix=Math.floor(this.ix);this.iy=Math.floor(this.iy);if(c&&this.wcsAlign()){var d=this.wcsim;c=d.rgb.sect;d=a.pix2pix(d,this,d.getPan());var e=a.globalOpts.panWithinDisplay;
+a.globalOpts.panWithinDisplay=!0;this.tmp.ozoom=this.rgb.sect.ozoom;this.mkSection(d.x,d.y,c.zoom);this.rgb.sect.ozoom=this.tmp.ozoom;delete this.tmp.ozoom;a.globalOpts.panWithinDisplay=e;this.ix-=(b.xcen-(b.x0+b.x1)/2)*c.zoom;this.iy+=(b.ycen-(b.y0+b.y1)/2)*c.zoom}return this};a.Image.prototype.putImage=function(c){var b=this,d=this.rgb,e=this.display.context,g=function(c){if(!b.offscreenRGB){var d=document.createElement("canvas");var e=d.getContext("2d");d.width=c.width;d.height=c.height;a.ANTIALIAS||
+(e.imageSmoothingEnabled=!1,e.webkitImageSmoothingEnabled=!1,e.msImageSmoothingEnabled=!1);e.putImageData(c,0,0);b.offscreenRGB={canvas:d,context:e}}return b.offscreenRGB.canvas};c=c||{};"reproject"===this.rawDataLayer()&&c.wcsim&&(this.wcsim=c.wcsim,this.wcsim.isawcsim=!0);this.calcDisplayOffsets(!0);a.notNull(c.opacity)||a.notNull(c.blend)?(e.save(),void 0!==c.opacity&&(e.globalAlpha=c.opacity),void 0!==c.blend&&(e.globalCompositeOperation=c.blend),e.drawImage(g(d.img),this.ix,this.iy),e.restore()):
+e.putImageData(d.img,this.ix,this.iy);return this};a.Image.prototype.displayImage=function(c,b){var d=0;var e=[],g={};if(!1===c)return this.displayMode=!1,this;!0===c&&(this.displayMode=!0,c="all");if(!this.displayMode)return this;"object"===typeof c&&(b=c,c=null);c?"all"===c?(c="colors,scaled,rgb,display,plugins",g.notify=!0):"rgbonly"===c?(c="rgb,nodisplay",g.notify=!0):"display"===c&&(g.notify=!0):c="rgb";c.split(",").forEach(function(a,b,c){a=a.trim();g[a]=!0;switch(a){case "colors":g.scaled=
+!0;g.rgb=!0;break;case "scaled":g.rgb=!0}});g.display=!0;g.plugins=!0;this.rgbFile&&(g.colors=!1,g.scaled=!1);b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse displayImage opts: "+b,h)}if(this.display.blendMode&&!1!==b.blendMode)for(c=0;c<a.images.length;c++){var f=a.images[c];f.display===this.display&&f.blend.active&&(e.push(f),d++)}g.colors&&(this.mkColorData(),this.offscreenRGB=null);g.scaled&&(this.mkColorCells(),this.mkScaledCells(),this.offscreenRGB=null);if(g.rgb&&
+(this.mkRGBImage(),this.offscreenRGB=null,d))for(c=e.length-1;0<=c;c--)f=e[c],f.mkRGBImage(),f.offscreenRGB=null;if(g.nodisplay)return this;if(g.display){this.display.context.clear();if(d){for(c=e.length-1;0<=c;c--)e[c].calcDisplayOffsets(!1);for(c=e.length-1;0<=c;c--)f=e[c],d={wcsim:b.wcsim,blend:f.blend.mode,opacity:f.blend.opacity},f.putImage(d),f===this&&f.displayShapeLayers()}else this.putImage(b),this.displayShapeLayers();this.display.image=this;if(this.delayedShapes&&this.delayedShapes.length){for(;this.delayedShapes.length;)b=
+this.delayedShapes.shift(),this.addShapes(b.layer,b.shape,b.opts);delete this.delayedShapes}}this.xeqPlugins("image","onimagedisplay");return this};a.Image.prototype.refreshImage=function(c,b){b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(h){a.error("can't parse refresh opts: "+b,h)}if(c&&"string"!==typeof c){b.rawid=b.rawid||a.RAWID0;"function"===typeof b&&(b={onrefresh:b});!b.onrefresh&&a.imageOpts.onrefresh&&(b.onrefresh=a.imageOpts.onrefresh);if(!b.resetSection){var d=this.imageToLogicalPos({x:this.rgb.sect.xcen,
+y:this.rgb.sect.ycen});if(this.raw.wcs&&0<this.raw.wcs){var e=a.pix2wcs(this.raw.wcs,this.rgb.sect.xcen,this.rgb.sect.ycen);var g=e.trim().split(/\s+/);var f=a.saostrtod(g[0]);":"===String.fromCharCode(a.saodtype())&&"galactic"!==this.params.wcssys&&"ecliptic"!==this.params.wcssys&&(f*=15);g=a.saostrtod(g[1])}}e=this.rgb.sect.zoom;this.binning.obin=this.binning.bin;this.mkRawDataFromHDU(c,b);b.resetSection?(this.mkSection(),this.mkSection(e)):(this.raw.wcs&&0<this.raw.wcs&&a.notNull(f)&&a.notNull(g)?
+(g=a.wcs2pix(this.raw.wcs,f,g).trim().split(/ +/),c={x:parseFloat(g[0]),y:parseFloat(g[1])}):c=this.logicalToImagePos({x:d.x,y:d.y}),0<c.x&&c.x<this.raw.width&&0<c.y&&c.y<this.raw.height?this.mkSection(c.x,c.y,e):(this.mkSection(),this.mkSection(e)));this.displayImage("colors",b);this.reFlipRot90();this.notifyHelper();if(b.refreshRegions||b.resetSection||this.binning.obin!==this.binning.bin)this.refreshLayers(),this.updateShapes("regions","all","binning");this.xeqPlugins("image","onimagerefresh");
+a.waiting(!1);if(b.onrefresh)try{a.xeqByName(b.onrefresh,window,this)}catch(h){a.error("in image refresh callback",h)}return this}b.onrefresh&&(b.onload=b.onrefresh,delete b.onrefresh);b.refresh=this;e=document.domain?c||this.file:c||this.fitsFile||this.file;a.Load(e,b,{display:this.display})};a.Image.prototype.fileDimensions=function(){if(this.parent&&"BINTABLE"!==this.parent.raw.header.XTENSION){var a=this.parent.raw.header.TABDIM1?this.parent.raw.header.TABDIM1:this.parent.raw.header.NAXIS1;var b=
+this.parent.raw.header.TABDIM2?this.parent.raw.header.TABDIM2:this.parent.raw.header.NAXIS2}else a=this.raw.header.TABDIM1?this.raw.header.TABDIM1:this.raw.header.NAXIS1,b=this.raw.header.TABDIM2?this.raw.header.TABDIM2:this.raw.header.NAXIS2;return{xdim:a,ydim:b}};a.Image.prototype.maybePhysicalToImage=function(c){if("image"===this.imtab&&this.parent&&this.parent.lcs&&c.x&&c.y){c={x:c.x,y:c.y};c=a.Image.prototype.logicalToImagePos.call(this.parent,c,"ophysical");var b={x:Math.floor(c.x+.5),y:Math.floor(c.y+
+.5)}}return b};a.Image.prototype.displaySection=function(c,b){var d=this,e,g,f,h,k,l,m,n=function(b,c,d){var e;a.isNull(b)?a.isNull(c)||(e=c):e=b;return e||d},q=function(c,e){var f="";l=$.extend(!0,{},e||{});a.isNull(l.refreshRegions)&&(l.refreshRegions=!0);a.isNull(l.resetSection)&&(l.resetSection=!0);!1!==l.waiting&&a.waiting(!0,d.display);c.fits.extname?f="["+c.fits.extname+"]":c.fits.extnum&&0<c.fits.extnum?f="["+c.fits.extnum+"]":d.parent&&(d.parent.extname?f="["+d.parent.extname+"]":d.parent.extnum&&
+0<d.parent.extnum&&(f="["+d.parent.extnum+"]"));f&&(l.id=d.id.replace(/\[.*\]/,"")+f,l.file=d.file.replace(/\[.*\]/,"")+f);if(l.separate){delete l.xcen;delete l.ycen;if("string"===typeof l.separate){f=l.separate.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e)}else l.display=d.display;"parentFile"===g&&d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:d.fitsFile);h=d.listRegions("all",{mode:1,saveid:!0});b=l.ondisplaysection||
+l.onrefresh||b;k=new a.Image(c,l,b);k.binning.obin=k.binning.bin;h&&!1!==l.refreshRegions&&k.addShapes("regions",h,{restoreid:!0});d.reFlipRot90();k.setStatus("displaySection","complete")}else if("string"===typeof l.refresh){delete l.xcen;delete l.ycen;f=l.refresh.split(":");switch(f.length){case 1:e=f[0];break;default:e=f[0],l.id=f[1]}l.display=a.lookupDisplay(e);l.display.image?(l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||l.onrefresh||b,l.display.image.refreshImage(c,l)):("parentFile"===g&&
+d.fitsFile&&(e=a.lookupImage(d.fitsFile),l.parentFile=e&&e.parentFile?e.parentFile:d.fitsFile),h=d.listRegions("all",{mode:1,saveid:!0}),b=l.ondisplaysection||l.onrefresh||b,k=new a.Image(c,l,b),k.binning.obin=k.binning.bin,h&&k.addShapes("regions",h,{restoreid:!0}),d.reFlipRot90())}else l.rawid=d.raw.id,l.onrefresh=l.ondisplaysection||l.onrefresh||b,d.refreshImage(c,l);d.setStatus("displaySection","complete");a.waiting(!1)};this.raw&&this.raw.hdu&&this.raw.hdu.fits||a.error("invalid image for displaySection");
+c=c||{};if("full"===c){var p=this.fileDimensions();c={xdim:p.xdim,ydim:p.ydim,xcen:0,ycen:0}}else{if("selected"===c){this.selectShapes("regions","selected",function(a){a=a.pub;var c,e=0,f=0,g=1E6,h=0,k=1E6,m=0,n=a.shape;if(!d.parentFile&&a.lcs){a=a.lcs;var p=a.x;var t=a.y;if(c=d.maybePhysicalToImage({x:p,y:t}))p=c.x,t=c.y}else p=a.x,t=a.y;switch(n){case "annulus":var q=2*a.radii[a.radii.length-1];var r=2*a.radii[a.radii.length-1];break;case "box":q=a.width;r=a.height;break;case "circle":q=2*a.radius;
+r=2*a.radius;break;case "ellipse":q=2*a.r1;r=2*a.r2;break;case "polygon":case "line":for(q=0;q<a.pts.length;q++)e+=a.pts[q].x,f+=a.pts[q].y,a.pts[q].x>h&&(h=a.pts[q].x),a.pts[q].x<g&&(g=a.pts[q].x),a.pts[q].y>m&&(m=a.pts[q].y),a.pts[q].y<k&&(k=a.pts[q].y);a.x=e/a.pts.length;a.y=f/a.pts.length;"line"===a.shape&&2===a.pts.length?(q=Math.sqrt((a.pts[0].x-a.pts[1].x)*(a.pts[0].x-a.pts[1].x)+(a.pts[0].y-a.pts[1].y)*(a.pts[0].y-a.pts[1].y)),r=1):(q=h-g,r=m-k);break;case "text":r=q=10}l={xcen:p,ycen:t,xdim:q,
+ydim:r,from:"virtualFile",separate:!0,refreshRegions:!1,resetSection:!0};d.displaySection(l,b)});return}if("string"===typeof c)try{c=JSON.parse(c)}catch(y){a.error("can't parse section opts: "+c,y)}}var t=c.separate?$.extend(!0,{},this.raw.hdu):this.raw.hdu;(g=c.from)||(g=this.parentFile&&a.helper.connected&&a.helper.js9helper?"parentFile":"virtualFile");if(t.table)p=t.table;else{if("parentFile"===g&&this.raw.header&&a.notNull(this.raw.header.LTM1_1)){var r=1;var u=this.raw.header.LTM1_1}else r=t.bin||
+1,u=1;p={x:this.raw.width/2,y:this.raw.height/2};var v=this.imageToLogicalPos(p);p={};p.bin=Math.floor(r/u+.5);p.xcen=Math.floor(v.x+.5*(p.bin-1));p.ycen=Math.floor(v.y+.5*(p.bin-1));if(r=this.maybePhysicalToImage({x:p.xcen,y:p.ycen}))p.xcen=r.x,p.ycen=r.y;p.xdim=Math.floor(t.naxis1*p.bin);p.ydim=Math.floor(t.naxis2*p.bin);p.filter=this.raw.filter||""}if("string"===typeof c.bin)switch(c.bin.match(/[as]$/)&&(c.binMode=c.bin.slice(-1),c.bin=c.bin.slice(0,-1)),r=p.bin||this.binning.bin,c.bin.charAt(0)){case "*":case "x":case "X":c.bin=
+r*parseInt(c.bin.slice(1),10);break;case "/":c.bin=r/parseInt(c.bin.slice(1),10);break;case "+":c.bin=r+parseInt(c.bin.slice(1),10);break;case "-":c.bin=r-parseInt(c.bin.slice(1),10);break;case "i":case "I":c.bin=2*r;break;case "o":case "O":c.bin=r/2;break;default:a.isNumber(c.bin)?c.bin=parseInt(c.bin,10):a.error("invalid bin for displaySection: "+c.bin)}c.xcen=n(c.xcen,p.xcen,0);c.ycen=n(c.ycen,p.ycen,0);switch(this.imtab){case "table":c.xdim=n(c.xdim,p.xdim,a.fits.options.table.xdim);c.ydim=n(c.ydim,
+p.ydim,a.fits.options.table.ydim);c.bin=n(c.bin,p.bin,a.fits.options.table.bin);break;default:c.xdim=n(c.xdim,p.xdim,a.fits.options.image.xdim),c.ydim=n(c.ydim,p.ydim,a.fits.options.image.ydim),c.bin=n(c.bin,p.bin,a.fits.options.image.bin)}c.binMode=n(c.binMode,p.binMode,a.globalOpts.binMode);"string"===typeof c.bin&&(c.bin.match(/[as]$/)&&(c.binMode=c.bin.slice(-1)),c.bin=parseInt(c.bin,10));c.bin=Math.max(1,c.bin||1);c.filter=n(c.filter,p.filter,"");this.raw.filter=c.filter||"";!1!==c.waiting&&
+a.waiting(!0,this.display);this.setStatus("displaySection","processing");window.setTimeout(function(){switch(g){case "parentFile":e=d.proxyFile;m=[];m.push({name:"xcen",value:c.xcen});delete c.xcen;m.push({name:"ycen",value:c.ycen});delete c.ycen;m.push({name:"xdim",value:c.xdim});m.push({name:"ydim",value:c.ydim});void 0!==c.xdim&&(c.xdim=0);void 0!==c.ydim&&(c.ydim=0);c.binMode&&(c.bin=""+c.bin+c.binMode,delete c.binMode);m.push({name:"bin",value:c.bin});delete c.bin;m.push({name:"filter",value:c.filter||
+""});m.push({name:"slice",value:c.slice||""});delete c.slice;f={id:d.expandMacro("$id"),image:d.file,fits:d.parentFile,rtype:"text"};f.cmd="js9Xeq imsection "+d.parentFile;c.extension&&(f.cmd=f.cmd.replace(/\[.*\]/,""),f.cmd+="["+c.extension+"]",delete c.extension);f.cmd+=d.expandMacro(" $xdim@$xcen,$ydim@$ycen,$bin $filter $slice",m);a.helper.send("imsection",f,function(b){b="object"===typeof b?b:0<=b.search(a.analOpts.epattern)?{stderr:b}:{stdout:b};if(b.stderr)a.error(b.stderr);else if(b.errcode)a.error("in displaySection: "+
+b.errcode);else{var f=b.stdout.split(/\n/);b=a.cleanPath(f[0]);"/"!==b.charAt(0)&&(b=a.InstallDir(b));c.proxyFile=b;e&&e!==c.proxyFile&&d.removeProxyFile(e);if(f[1]){try{var g=JSON.parse(f[1])}catch(z){a.log("couldn't parse imsection as JSON: %s",b),g=null}g&&(c.extname=g.extname,c.extnum=g.extnum,c.hdus=g.hdus,c.parent=g)}f[2]&&(g=a.cleanPath(f[2]),c.parentFile=g);c.ltm2obin=!0;a.fetchURL(b,b,c,function(b){a.cleanupFITSFile(d.raw,!0);!1!==c.waiting&&a.waiting(!0,d.display);a.fits.handleFITSFile(b,
+c,q)})}});break;case "virtualFile":a.cleanupFITSFile(d.raw,!1);a.getFITSImage(t.fits,t,c,function(a){q(a,c)});break;default:a.error("image section cannot be extracted from this data file")}},a.SPINOUT)};a.Image.prototype.displayExtension=function(c,b,d){var e=this,g,f,h=function(c){var f=$.extend(!0,{},b);f.separate=!0;if(c===e.hdus.length){if(d)try{a.xeqByName(d,window,e)}catch(p){a.error("in displayExtension callback",p,!1)}}else{var g=e.hdus[c];"image"===g.type&&2<=g.naxis?e.displayExtension(g.hdu,
+f,function(){h(c+1)}):h(c+1)}};b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(m){a.error("can't parse extension opts: "+b,m)}b.waiting=!1;this.hdus||a.error("no FITS HDUs found for displayExtension()");a.isNull(c)&&a.error("missing extname/extnum for displayExtension()");if("all"===c)h(0);else{if("string"===typeof c){b.extension=c;var k=c.toLowerCase();for(f=g=0;g<this.hdus.length;g++)if(this.hdus[g].name&&this.hdus[g].name.toLowerCase()===k){f++;break}f||a.error("no FITS HDU "+c+" for displayExtension()")}else"number"===
+typeof c&&(b.extension=c,this.hdus[c]?k=this.hdus[c].name||c.toString():a.error("no FITS HDU "+c+" for displayExtension()"));if(b.separate){g="["+k+"]";c=this.id.replace(/\[.*\]/,"")+g;for(f=g=0;g<a.images.length;g++){var l=a.images[g];if(c===l.id&&0<$("#"+l.display.id).length&&this.display.id===l.display.id){f++;break}}if(f){l.displayImage("display",b);l.display.clearMessage();if(d)try{a.xeqByName(d,window,this)}catch(m){a.error("in displayExtension callback",m,!1)}return}}b.separate||a.cleanupFITSFile(this.raw,
+!1);this.displaySection(b,d);return this}};a.Image.prototype.displaySlice=function(c,b,d){b=b||{};if("string"===typeof b)try{b=JSON.parse(b)}catch(g){a.error("can't parse slice opts: "+b,g)}b.waiting=!1;void 0===c&&a.error("missing slice for displaySlice()");if("all"===c&&3===this.raw.header.NAXIS)for(this.displaySlice(1,e,d),c=2;c<=this.raw.header.NAXIS3;c++){var e=$.extend(!0,{},b,{separate:!0});this.displaySlice(c,e,d)}else a.isNumber(c)?b.slice="*:*:"+c:b.slice=c,a.cleanupFITSFile(this.raw,!1),
+this.displaySection(b,d);return this};a.Image.prototype.toArray=function(c){var b,d,e=this.raw.data.buffer;c=c||{};c.simple=!0;c=a.raw2FITS(this.raw,c);var g=2880-c.length%2880;2880===g&&(g=0);for(b=0;b<g;b++)c+=" ";g=2880-e.byteLength%2880;2880===g&&(g=0);b=new ArrayBuffer(c.length+e.byteLength+g);var f=new Uint8Array(b);for(b=0;b<c.length;b++)f[b]=c.charCodeAt(b);if(0<(new Int8Array((new Int16Array([1])).buffer))[0]){var h=c.length;var k=Math.abs(this.raw.bitpix)/8;var l=new Uint8Array(e);for(b=
+0;b<l.byteLength;b+=k){var m=b+k-1;for(d=0;d<k;m--,d++)f[h++]=l[m]}}else f.set(new Uint8Array(e),c.length);h=c.length+e.byteLength;for(b=0;b<g;b++)f[h++]=0;return f};a.Image.prototype.wcsAlign=function(){return this.wcsim&&this.params.wcsalign&&this.display===this.wcsim.display};a.Image.prototype.getPan=function(){var c=this.rgb.sect,b=(c.x0+c.x1)/2,d=(c.y0+c.y1)/2;a.notNull(c.ix)&&(b+=c.ix/(2*c.zoom));a.notNull(c.iy)&&(d+=c.iy/(2*c.zoom));return{x:b,y:d,ox:c.xcen,oy:c.ycen,x0:c.x0,y0:c.y0,x1:c.x1,
+y1:c.y1,ix:c.ix||0,iy:c.iy||0}};a.Image.prototype.setPan=function(c){for(var b=[],d=0;d<arguments.length;++d)b[d-0]=arguments[d];var e;var g=$jscomp.makeIterator(b);d=g.next().value;g=g.next().value;if(!(0<=$.inArray("pan",this.params.disable))){0===b.length&&(d=this.raw.width/2,g=this.raw.height/2);if(1===b.length&&"string"===typeof d)if("mouse"===d&&this.ipos)d=this.ipos.x,g=this.ipos.y;else try{d=JSON.parse(d)}catch(m){a.error("can't parse setPan JSON: "+d,m)}if("object"===typeof d){b=d;a.notNull(b.x)&&
+a.notNull(b.y)&&(d=b.x,g=b.y);a.notNull(b.px)&&a.notNull(b.py)&&(g=this.logicalToImagePos({x:b.px,y:b.py}),d=g.x,g=g.y);if("string"===typeof b.wcs){var f=b.wcs.trim().split(/ +/);b.ra=f[0];b.dec=f[1];3<=f.length&&(b.wcssys=f[2])}if(a.notNull(b.ra)&&a.notNull(b.dec)&&0<this.raw.wcs){if(b.wcssys){var h=this.getWCSSys();var k=a.globalOpts.xeqPlugins;a.globalOpts.xeqPlugins=!1;this.setWCSSys(b.wcssys)}"string"===typeof b.ra&&(b.ra=a.saostrtod(b.ra),":"===String.fromCharCode(a.saodtype())&&"galactic"!==
+this.params.wcssys&&"ecliptic"!==this.params.wcssys&&(b.ra*=15));"string"===typeof b.dec&&(b.dec=a.saostrtod(b.dec));f=a.wcs2pix(this.raw.wcs,b.ra,b.dec).trim().split(/ +/);d=parseFloat(f[0]);g=parseFloat(f[1]);h&&(this.setWCSSys(h),a.globalOpts.xeqPlugins=k)}}a.isNumber(d)&&a.isNumber(g)||a.error("invalid input for setPan: "+d+" "+g);if(this.wcsAlign()||this.isawcsim){var l=a.globalOpts.panWithinDisplay;a.globalOpts.panWithinDisplay=!0}this.mkSection(d,g);if(this.wcsAlign()||this.isawcsim){for(h=
 0;h<a.images.length;h++)k=a.images[h],k!==this&&k.display===this.display&&(k.wcsim===this||this.wcsim===k||k.wcsim&&k.wcsim===this.wcsim)&&(k.params.wcsalign||this.params.wcsalign)&&(b=a.pix2pix(this,k,{x:d,y:g}),k.mkSection(b.x,b.y));a.globalOpts.panWithinDisplay=l}this.displayImage("rgb");for(e in this.layers)this.layers.hasOwnProperty(e)&&this.layers[e].show&&this.layers[e].opts.panzoom&&this.refreshShapes(e);a.globalOpts.extendedPlugins&&this.xeqPlugins("image","onsetpan");return this}};a.Image.prototype.getZoom=
 function(){return this.rgb.sect.zoom};a.Image.prototype.parseZoom=function(a){var b=this.rgb.sect.zoom;switch(typeof a){case "string":switch(a.charAt(0)){case "*":case "x":case "X":a=b*parseFloat(a.slice(1));break;case "/":a=b/parseFloat(a.slice(1));break;case "I":case "i":a=2*b;break;case "O":case "o":a=b/2;break;case "T":case "t":a=Math.min(this.display.width/this.raw.width,this.display.height/this.raw.height);a=Math.round(1E6*(a+1E-7))/1E6;break;default:a=parseFloat(a)}break;case "number":break;
 default:return}return a};a.Image.prototype.setZoom=function(c){var b,d;if(!(0<=$.inArray("zoom",this.params.disable))){(b=this.parseZoom(c))||a.error("invalid input for setZoom: "+c);if(this.wcsAlign()||this.isawcsim){var e=a.globalOpts.panWithinDisplay;a.globalOpts.panWithinDisplay=!0}this.mkSection(b);if(this.wcsAlign()||this.isawcsim){for(c=0;c<a.images.length;c++){var g=a.images[c];if(g!==this&&g.display===this.display&&(g.wcsim===this||this.wcsim===g||g.wcsim&&g.wcsim===this.wcsim)&&(g.params.wcsalign||
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