1.8.0

New features

Element grid has been completely overhauled with many additional features
Element axis has been completely overhauled with many additional features
Pointer and keyboard control of 3D views.
New events click and dblclick on desktop browsers
Tick labels can now be displayed as fractions

Improvements

API docs
Lines: new method Direction
New method Math.roundToStep
New method 'JXG.parseNumber to handle various unit numbers in strings
New method JXG.parsePosition to handle combinations of position options in strings
New methods JXG.Math.decToFraction and JXG.toFraction to convert float to fraction
New text attribute formatNumber
Various new features in the measurement element
String positioning in SVG
Add various geometry methods to JessieCode
3D: elevation now runs from 0 to 2pi
"arrowparallel": is of type vector now

Bug fixes

Handling of font size after call of setAttribute
Slope triangle: handling of label
Implicit curve handling of string input
Ticks of tape measures
dragging of 3D points

1.7.0

New features

New element implicitcurve: plot curve given by an equation F(x, y) = 0
New element parallelogram
New element measurement and new simple prefix parser
New element vectorfield3d
Add board attribute theme
Add theme mono_thin
New function JXG.stack2jsxgraphNew method JXG.Math.Numerics.polzeros
Extend method Value for angle, arc and sector.
New method Coords for point, image and text

Improvements

New function JXG.Math.Geometry.distPointSegment: computes distance point from segment
New function JXG.Math.Numerics.glomin: Brent's global minimizer
New function JXG.Math.hypot: Euclidean length of a vector
New function JXG.Math.hstep: Heaviside unit step function
New function JXG.Math.Numerics.polzeros to compute all zeros (including the complex ones) of a polynomial
New quadtree implementation BoxQuadtree for storing segments
Add new point face <<>> or diamond2 (enlarged to match size of [])
API reference: many bug fixes, improvements, many new examples
Improve Jessiecode support in text elements
JessieCode support of available functions and methods
Angle element: set correct radius in sub-object arc
Remove bst.js and heap.js from core
Adapt mediawiki plug-in for the latest version of mediawiki
Improve fullscreen mode
JessieCode: improved handling of expressions containing a slider value a
Defining points of axes
Curves: set default values for min and max values of the parameter
Attribute handling
Massive speed up of board.removeObject
Allow change of arrow heads with setAttribute
Navigation buttons: individual CSS classes
Refactor board.registerEvents
Refactor JavaScript (replace String.substr())
New method for complex numbers: JXG.C.copy
Arc: add method 'L'
Sector: add methods Area and Perimeter

Bug fixes

Address many eslint warnings
Tangent on sector
Intersection curve, circle
Use absolute lengths for circle construction by radius and fixed segment lengths
pinch-to-zoom
function plot algorithm
Retire geonext2js
Symbolic derivatives
Circum circle handling
slopetriangle: attribute borders
glider.free
Remove jsxcompressor.min.js from version control
super- und sub-scripts without TeX
inequality: attribute inverse
Handling of lower case in deepCopy, copyAttributes
ES6 support of JSXGraph

1.6.2

New features

JXG.JSXGraph.initBoard() accepts a reference to the hosting HTML element

Improvements

Quadtree functionality

Bug fixes

foreignobject regression

1.6.1

New features

Slider snap values
New text attributes autoPositionMaxDistance, autoPositionMinDistance for label positioning

Improvements

Fullscreen mode scaling is independent from original CSS
Fullscreen mode reacts to orientation change
Riemann sum: Display Simpson's rule as quadratic function
Enhance quadtree API

Bug fixes

API docs
Runge-Kutta method

1.6.0

New features

New elements vectorfield and slopefield
New element smartlabel for displaying measurements
New method: board.setAttribute()
Add internationalization for formatting numbers: new attribute intl
Dotted lines (with attribute dash:7)
New attribute dashScale for line dashes
Allow KaTeX macros
Line elements: New values for label attribute `position:first' and 'position:last'
Transformations can handle HTML texts now
New board attributes: registerResizeEvent and registerFullscreenEvent

Improvements

New circle method circle.Perimeter()
New line method line.Slope()
New polygon method "L()", alias for Perimeter()
JXG.Math.Numerics: New methods getLagrangePolynomialCoefficients, f.getCoefficients
New method Sector.setRadius
Allow all text elements to be rotated
3D: Improved API and bug fixes
3D: Allow vertical movements of 3D points by pressing the shift key
3D: add method removeObject, set/getAttribute
3D: azimuth rotates around center of box, not around origin
Keyboard control: move texts and polygons, keep elements highlighted while having focus
Much improved two-finger handling of objects
Logging of user activity: add more data, like positions
Improved TypeScript support
API documentation
Intersections: allow function as number of the intersection
Metapost curves: new API, improved support of tension, curl, ...
Allow slashes in IDs, i.e. SVG IDs are escaped.
Numerical stability of path clipping
New method JXG.isBoard()
Add attribute lineCap for circles
foreignObjects has new default attribute needsRegularUpdate:false
Make touchpoint offset dependent on point visibility
PointerDownListener: Add parameter to prevent evt canceling
Refactor ticks, especially insertTicks algorithm
Ticks: mark attribute precision as deprecated
Add missing options entries for various derived elements like tangent
Enable infobox attributes as sub-attribute of the board
New attribute `polygon.highlightByStrokeWidth``
Add pointerleave listener

Bug fixes

Dependency check for transformations. This bug broke reflections and mirror elements
hasPoint method of curves of Bezier degree 3
Fix regression: dragging of lines
Triangles were hexagons
intersection of polygons with line through infinite point
Add and remove polygon vertices
`circle.setRadius(0)``
Attributes for foreignobject
3D panning
Invisible button, checkbox, input element was not created correctly
Point face 'triangleup'
Out of memory bug for grid size 0
hasPoint if one axis is "flipped"
Some API doc hyperrefs
Imports in index.js
JessieCode dump: remove name conflict of function variables and object names
Projection of glider to curve, if curve is partly undefined.
Ignore touchFirstPoint, touchLastPoint for invisible points
Initial positioning with snapToGrid
Jessiecode compile(): introduce needsAngleBrackets to distinguish parenthesis in functions and property delimiters.
SVG dump: remove " from URLs
Numerical instability in meetLineLine
Ticks: fix numerical instability with includeBoundaries
Visibility issue if a polygon becomes undefined
Touch events: executed twice
polygons and snapToGrid: prevent rotation, scaling by two fingers
Correct symbolic simplification

1.5.0

New features

API change in JSXCompressor. Old: JXG.decompress New: JSXCompressor.default.decompress
Code base switched from AMD to ES6 imports
New attributes majorTickEndings, ignoreInfiniteTickEndings
New math class Mat.Heap
New board attribute browserPan: allows to scroll web page by swiping in JSXGraph board
New element attribute shadow: enables individual shadows for each stroke element (in SVG)
New turtle methods: getPenColor, getHighlightPenColor, getPenSize
New events for keyboard handling:
- keymove for board
- keydrag for elements
New board attribute fullscreen{ scale: 0.85 }
New board attribute logging: enables logs of user activity
New attribute transitionProperties: enables more flexible transitions
New point faces | ('divide') and - ('minus')
New attributes distanceX/Y for infobox element

Improvements

Stability of bounding box after orientation changes or resizes if keepaspectratio=true
Remove all 3rd party dependencies of jsxgraphcore.js, e.g. canvas.
Ecosystem:
- .gitignore, Makefile, package.json
- Add github actions
- Add distrib/jsxgraphcore.js and distrib/jsxgraphsrc.js to .gitignore
- Update README.md
- Add version number to API references
Add unit tests
Continuous improvement of index.d.ts
Deep merging of attributes: new method mergeAttr in env.js
Merge document attribute as black box instead of object (shadowDOM)
Improve shadow DOM support
Improve browserless support
API docs
Click on slider triggers 'drag' event
Add dependence on elements when creating JessieCode function
startAnimation: allow functions as parameters
Update JSXCompressor package

Bug fixes

3D curves
Swap ids of navigation buttons up/down
Coords event handler
Pass explicit reference to $jc$ in jessiecode.js
inherited visibility of hatch
Keep resized view centered if not setting bounding box
Set renderer argument when loading board from string
Some fixes for IE11 compatibility
Fix regression in snapToGrid
updateContainerDims: avoid NaN when containerObj is not attached to the page
Remove the global variable x_internalload
Speed improvement in defaultAxes

1.4.6

New features

New feature: ids for navigation buttons
New ticks attribute ticksPerLabel: allows minor ticks to be labelled as well
Attribute hasInnerPoints for curves
Set evenodd fill rule for polygon fills

Improvements

Refactor 3D API
Refactor text handling (MathJax / JessieCode / HTML)
Allow functions as input for labels of checkbox, input and button
TypeScript: fontUnit added to TextOptions
Clipping: handle more extreme cases
Fullscreen mode support independent from browser zoom level (webkit)

Bug fixes

Conflicting 2D and 3D calls
polygonalchain: add / remove points
Replace fullscreen icon by SVG image
Problems with integral element / gliders on function graphs which are not defined everywhere (like log)

1.4.5

New features

New element attribute rotatable
3D points: new method setPosition3D()

Improvements

Allow value tags in strings in combination with MathJax
Gradually improvement of index.d.ts
API doc
JSXGraph in shadowDOM
FullscreenMode in shadowDOM
Speed improvement COBYLA

Bug fixes

Handling of backslashes in strings. Improves MathJax in JessieCode
Keyboard mode: allow o-key and arrow keys in input fields
Precision problem in tick labels
Fix regression: snapToGrid for lines
Fix regression: resizeObserver was broken in v1.4.4

1.4.4

New features

Intersecting points of polygons with other elements
Support usage of jsxgraph in shadowDOM

Improvements

Additions to index.d.ts
Initial API doc for some 3D elements
Handling of parallel lines and parallel arrows
Support of 3D elements

Bug fixes

Add file options3d.js to jsxgraphcore.js
Resize of deleted container

1.4.3

New features

Experimental support of 3D elements

Improvements

Many improvements to index.d.ts
Make JSXGraph available as ES6 module

Bug fixes

Ticks are now parents of their tick labels
polygon.insertPoints and polygon.addPoints
JessieCode dump of slider elements
Resolve shortcuts also for trace attributes

1.4.2

Improvements

Gradient fill color for points
Many improvements to index.d.ts
Improved keyboard control
Some preparations for 3D support
Reduce thick focus box on webkit browsers

Bug fixes

Fix touch events for iOS < 13
Bug fix: beautifulScientificTickLabels for numbers with negative exponents

1.4.1

New features

API change: the number of digits in a text element is now set generally with the attribute digits. The attribute "precision" is used to decide if a pointer device is close enough to a JSXGraph element to be considered as touching the element. The old attributes precision for the number of digits are still working but marked as deprecated.

Improvements

Update JessieCode parser
View point with keepaspectratio:true is now centered
JessieCode: points can now have names like X, Y, L. Previously, there was a conflict with function names with the same name
JessieCode: allow map functions without parameters
Refactor ca.js
API docs
index.d.ts

Bug fixes

Clipping: various bug fixes
Fullscreen mode
SVG screen shots
Default axis ticks in JXG.Dump.toJessie and JXG.Dump.toJavaScript.
Fix problems with board.resizeContainer()

Ecosystem

npm package does not rely on the npm package canvas anymore
Add unit tests for JXG.Math.Clip
Use eslint for linting
Use terser for minifying

Many thanks go to David Holmes for his contributions.

1.4.0

New features

New element boxplot
New element foreignobject, shortcut fo
New point attribute attractToGrid
New method Polygon.pnpoly()
New method JXG.Math.statistics.percentile
New method JXG.Math.Numerics.lagrangePolynomialTerm(), also available as JXG.Math.Numerics.lagrangePolynomial.geTerm()
Curve / circle intersection
New color scheme, optimised for color blindness, see JXG.palette. Old color scheme can be restored by calling JXG.setClassicColors().

Improvements

Keyboard interaction
isOn method for elements with hasInnerPoints attribute
Much smoother two finger handling for pointer events
Intersection of curves having different Bezier degrees
API docs: many bug fixes and new examples
Jessiecode tag
Security: sanitize HTML in texts in case of JessieCode

Bug fixes

zoom100() restores the original bounding box
Button.setText()
Regression on glider.position
ResizeContainer conflicted with zoom level
Regular polygon
setAngle()
JessieCode

Ecosystem

Testing with Travis is enabled again
Revoke unit tests using Karma and Jasmine
Update Makefile and package.json, less dependencies from npmjs. make core-min is now included in make core.

Many thanks go to Christian Lawson-Perfect for his contributions.

1.3.2

Improvements

Fullscreen mode is now also possible with an out div, see https://jsxgraph.org/docs/symbols/JXG.Board.html#toFullscreen

Bug fixes

Fixed regression regarding full screen mode
Fixed board freeze when certain devices are hit with the palm

1.3.1

New features

New method: JXG.Math.Geometry.affineRatio

Improvements

Responsiveness: more stable reaction to size changes
Improved fullscreen mode in cases where the JSXGraph div does not have fixed width or height
isOn method covers also polygons with hasInnerPoints:true
API doc

Bug fixes

Fixed: computation of intersection between parallel and (half-)bounded line
Fixed: Intersection points between circle and line with straights off
Fixed: handling of many (uncontrolled) simultaneous pointer events
Fixed regression: points defined as transformations of other points

1.3.0

New features

Responsiveness:
- JSXGraph updates bounding box on resize events triggered by resizeObserver, also e.g. when changing from display:none.
- New board attribute moveTarget allows to continue dragging outside of the board
- New attribute fontUnit for texts
Accessibility: keyboard control of JSXGraph boards
New JSXGraph objects curvedifference, curveintersection, curveunion
New arrow head type 7
JessieCode: JessieCode tags support attribute src.
Angle: new attribute value radius:'auto'
New math functions erf, erfc, erfi, ndtr, ndtri, acosh, asinh
New math functions (comparisons and logical operators as functions): lt, gt, leq, geq, eq, neq, and, or, not, xor
New method: point.isOn(element)

Improvements

Arrows on curves: default arrow type 7
Smoother animations of texts: pixel position of texts is no longer rounded
Remove internal helper points if parent object is deleted (somewhat experimental)
New default: minimizeReflow:'none'
New method coordsOnArc
In fixed angles (set with setAngle) all three points now be dragged.
Intersection with arc behaves like intersection with circle
TypeScript: improve and update index.d.ts
API docs

Bug fixes

slopeTriangle: attribute topPoint
Snapping of glider to curve
Magnetized points on polygons
JessieCode parser
Clipping: shapes with holes

1.2.3

Improvements

el.hideElement(), el.showElement() not deprecated anymore. Same as el.setAttribute({visible:false/true})
Better auto positiong of labels
board.fullUpdate() updates size info of text elements. This is helpful for JSXGraph constructions which are initialised in a hidden parent element. When the board becomes visible, a call of board.fullUpdate() is sufficient to correct the position of the text elements. This can be triggered in an event listener (by the developer). See jsxgraph#348.

Bug fixes

Fix bugs in API doc
MathJax texts in fullscreen mode
Plot of conic sections of type parabola

New features

KaTex support (useKatex:true)
Add Typescript definition file index.d.ts (not yet complete). Thanks to David Holmes!!!
el.hide(), el.show(), alias for el.hideElement(), el.showElement().
Experimental: new polygon points will be deleted if polygon is deleted. In the future, this might be done in other cases, too.

1.2.2

Improvements

Clipping: allow clipping of arcs and sectors, as well as rings, i.e. clipping of clipped paths
Update WordPress plug-in
Update MediaWiki plug-in
Improve plotting stability (v2 and v4)

Bug fixes

Clipping
camelCase for radiusPoint and anglePoint attributes
Arrow heads on curves
API docs
JessieCode procedure calls

Experimental

Add cobyla port (non-linear programming)

1.2.1

Bug fixes

board attribute maxFrameRate
Fix regression in interval arithemetics
Plot version 4: take prime number as number of steps
Fix disappearing glider on natural spline

1.2.0

New Features

New board attributes:
- title
- description
- drag
- showInfobox
- maxFrameRate
New arrow heads
Ticks and hatches for curves
New curve type: metapost
New element: metapostspline
New math function: ratpow(base, m, n)
Chandrupatla's root finding algorithm
Interval arithmetics
New attribute: precision for elements for method hasPoint
New color function JXG.contrast

Improvements

Experimental new curve plotting algorithm
Root finding algorithm: improved bracketing
API docs
ARIA attributes
Simulate touch event property evt.scale for pointer events
Enable setAttribute for attribute layer
Enable centripetal cardinal splines
JXG.Math.Clip: allow coordinate arrays as input
JXG.Math.Clip: improve stability and supported cases
Scientific notation for ticks labels
Allow floating point numbers for attributes strokeWidth and size
Add methods for sequence acceleration (math/extrapolate.js)
New helper functions in JXG.type

Bug fixes

Inequality element
Polygon intersection
Axis ticks, arrow heads
Projective transformations of curves
alwaysIntersect attribute for line intersections
Sliders with visible:false
Links in API docs
generateGaussian
Dashed curves
RDP algorithm for curves with singularities

1.1.0

New Features

New JSXGraph element polygonalchain
New attribute gradient for color gradients. See API documentation for more attributes like gradient angle.
New method JXG.Math.statistics.generateGaussian
Slider values can be set by "up" events on the base line.

Improvements

Support for MathJax 3
Exact position of arrow heads for curves
Autoposition of labels
API documentation
Support for arrow heads on curves in canvas renderer

Bug fixes

Fix intersection of polygons with polygon1.intersect(polygon2)
Update build scripts
Remove unnecessary files from NPM repsository

1.00.0

Compatibility:

Safari / iOS 13 use pointer events.
Since Safari 12, board.renderer.screenshot() also supports texts in Safari.
JessieCode parse errors are handed over to the user and can be catched by try {} catch (e) {}

New Features

Polygon / curve clipping and boolean operation on curves is now enabled. Possible operations are intersection, union or difference of curves, polygones or circles.
New math functions: cot and acot, nthroot, cbrt, binomial. Available as JXG.Math.cot, ...
New method JXG.math.norm: Euclidean norm of a vector
Add board attributes "showFullscreen" and "fullscreen"
New board attribute maxBoundingBox
Faces for hatch marks and ticks (|><)
Create parabola given by a point and a pair of coordinate pairs.
Styling and highlighting of navigation bars with CSS
Add new parameter delay for CoordsElement.startAnimation()
Polar grids
New attribute highlightSize for arrow heads.
Reflection, mirroring of polygons
New attribute for labels autoPosition: true/false enables automatic positioning of labels.

Improvements

screenshot and base64 dumps include images now (dumpToURI)
API documentation contains many new examples
API documetation for Chart and Legend elements
Curve plotting: massive speed improvements and plotting precision
Multi-touch rotations are much more stable for pointer events
Pointer events use different precision when using pen, mouse or touch. New events for pen: pendrag, pendown, penmove.
Highlighting and hit event for touch and pointer events
Fire hit event also when dragging an element
Increased precision in JXG.Math.Numerics.Jacobi
Improved zoomElements
Enable attributes for parabola subelement line
Sketch reader: copy of polygons
Sketch reader: enable reflection of circle to be circle
Massive speed-up if many elements are deleted
Use '\u26f6' unicode symbol for fullscreen
Better compromise for _insideCanvas() for labels.
JessieCode handling of sliders
JessieCode: Use JSXGraph method JXG.Math.pow for a^b. This fixes problems like plotting of (-3)^(1/3)
JessieCode: Add all JSXGraph math functions
Work on unit tests
Refactor reflection and mirrorelement
Code refactoring
Update wordpress plug-in to use jsxgraphcore.js from jsxgraph.org
Update MediaWiki plug-in
Update package.json
Improved pan / pinch-to-zoom handling

Bug fixes

Glider on transformed curves
Fix call of free()
Address npm security alerts
Line rotation with pointer events on Edge
Dragging of labels
Input functions for curves failed for certain JessieCode functions
Bug fix: handling of pointer events
Speed-up by preventing multiple updates of drag element.
Precision of hasPoint for curves
Make all examples in API docs ready for fullscreen mode
Fix a very old bug in unzip algorithm for multi-file archives
size[] for axis labels of display='internal'
Animation of gliders on lines with slope!=0
Fix arrow head placement for type=3
Convert attributes in subobjects to lowerCase
Fix ticks for certain axes which are neither horizontal nor vertical
Firefox multi-touch pointer events
Ticks labels in canvas renderer
Better support of JSXGraph with nodejs
Manipulating ticks visibility during `board.suspendUpdate()``
Prevent flickering of text elements during creation
Stop using deprecated hide method in changePointStyle
Various changes in sketch reader for sketchometry
Geogebra reader: Fix argument order when mirroring across line

0.99.7

Compatibility:

Option.semicirclearc.midpoint -> Option.semicirclearc.center

New Features

New elements: 'cardinalspline', 'comb':
New element: (numerical) derivative (experimental).
New element 'reflection': allows point, line, curve, polygon, circle, arc, sector and angle
New element 'mirrorelement': allows point, line, curve, polygon, circle, arc, sector and angle
New possibility to create element by supplying element + transformation: This is possible for point, line, curve, polygon, circle, arc, conics, sector and angle.
New method Curve.moveTo()
Add option'auto' for anchorX and anchorY attribute of labels
SVGRenderer.screenshot: Add parameter "ignoreTexts
New board attribute value for renderer: 'auto'.
Pointer events are enabled now for Chrome and Edge on Windows
New curve attributes recursionDepthLow and recursionDepthHigh allow user controlled plot quality
The inequality element takes now also the functiongraph element as input
New function JXG.Math.lcm(a, b)
New attribute 'sizeUnit` to enable the user to supply the point size in COORDS_BY_USER units

Improvements

require.js support (especially in moodle)
Documentation
Enable transformation "rotate" of type [angle, [x,y]]
Default position of line labels
Improved trim() method
Improve code quality by using suggestion from jslint
Add method Type.isTransformationOrArray()
New default value selection:'auto' for arcs and sectors
Use <label for> for checkbox label
Add attribute "checked" for checkboxes
Improved screenshot functionality
Cardinal spline: attribute to prevent creation of points
Improve stability of glider and intersection computations on curves
New default values for pinch / zoom: shift+wheel is true now for zoom
New attribute isArrayOfCoordinates for cardinalspline element
Improved output in Dump.toJavaScript()
Add attribute hasInnerPoints for all arc types: arc, sector, angle
Polygon reflection now creates vertex names A', B', ...

Bug fixes

HTML elements: set id and allow anchors
Glider on arcs and sectors
line.hasPoint()
hasPoint() for polar and parametric curves
Visibility of non-existing objects
slider dragging
Remove trailing commas
Mediawiki plug-in
Catch error if MathJax loading is not yet complete
Correct handling of UTF-8 characters in JSXCompressor
Intersection of line / curve with transformed curve
Update of group elements
Visibility of in cloneToBackground
Automatic detection of dependencies among elements
Fix events hit, mousehit

Contributors:

Saluev: comb element
nikolas: documentation
Nik: documentation

0.99.6

New Features

new board attribute "showZoom"
new board attribute "defaultAxes"
board attributes zoom and pan: pan and zoom can be restricted to horizontal or vertical axis
board zoom and pan on touch devices: enable pan and zoom independently
allow function as value for attribute "visible"
new attribute value "visible:inherit"
allow CSS transistions for highlighting of objects: attribute "transitionDuration"
centripetal parametrization for Cardinal splines and Catmull-Rom splines
Visvalingam-Whyatt algorithm for curve simplification
new polygon method "Perimeter()"
new line attribute "lineCap"
more arrow heads and individual sizing of arrow heads. lastArrow: {type: 2, size: 8}
new attribute: "dragToTopOfLayer"
new text attribute: "cssStyle"
new input attribute: "maxlength"
screenshots for SVG renderer
symbolic differentiation in JessieCode
allow positioning of hatches and ticks, see example in doc

Improvements

Moodle plug-in is now a separate githup project at https://github.com/jsxgraph/moodle-jsxgraph-plugin
navigation bar can be controlled with the navbar attribute subject
Improved docs
JSXGraph is (again) working in AMD, CommonJS, and much more
Improved Cardinal splines
Allow adding of points for Cardinal splines
Improved alignment of tick labels for default axes
Speed improvements: prevent updates triggered by sub-pixel movements
Better merging of attributes for axes and default axes
More tasteful color selection for integrals
Unify handling of shift and ctrl key
Improved zoom and pan experience
Crisp lines in canvas renderer
Improved sensitivity for very thick lines
Adapt mediawiki and wordpress JSXGraph plug-ins to work with https
Initial support for arrows on curves
dumpToCanvas()
Ticks labels for sliders
Work on charts
Allow functions as values for attributes anchorX, anchorY and dragArea
Cathedes in slope triangles are now vectors
Improve evaluation of attribute values given by functions
Improved toFixed() method

Bug fixes

Touch support for IE
Hide context menu
JessieCode
infinte loop in parser
Axis labels which are mostly outside of the canvas are hidden
Bug fix: two finger meovement of objects
Unique Ids
hasPoint for curves
Development: update dependencies
Disable text selection in navigation bar
Refactoring
Fill correct half-plane for inequality
"Intersection" of circle and tangent
Add /remove points to polygon

Contributors:

Christian Lawson-Perfect
Kaspar Peulen
Markus Henn
Martin ?
micahscopes
Ninmesara

0.99.5

New Features

Make JSXGraph available as Nodejs package
New method JXG.Image.setSize()

Improvements

Handling of touch and mouse events should work now in all browsers, even if user-scalable viewport is allowed.
Improved pinch to zoom and pan
Much improved documentation: more examples, fixed links
Better support for reveal.js
Attracting of points
Allow homogeneous screen coordinates in setCoordinates() and setPositionDirectly()
Trigger JSXGraph mousewheel events on mousewheel

Bug fixes

hasPoint() on major sector
Intersection of Bezier curves
Dump construction to JessieCode or JavaScript
Image.updateSize()
Highlighting of images
SVG: handling of opacity
Make JessieCode compatible to IE 6-8
Nodejs compatibility for make
Dragging of very long lines
Color of arrow heads in SVG
Display copyright in canvas renderer
Bug fix for IE (SVG) with huge lines.

0.99.4

New Features

Allow gradients for polygons
Improved dragging of images and texts
More numerical routines for integration:
- Romberg
- QUADPACK routines
- Gauss-Legendre
Docs for transformations
New attribute ignoredSnapToPoints
New attribute for ticks: useUnicodeMinus (default true)
New board attribute maxNameLength: Controls the maximum number of digits of automatic labels. The default value has been reduced from 2 to 1
Allow shortened math syntax in Text.generateTerm() and in texts with <value&rt;-tag
Better support for the method bounds() for curves, texts and polygons
Allow gliders on polygons
New methods setMax() and setMin() for sliders.
Extend riemannsum to two function graphs
Introduce Boolean attribute disabled for button, checkbox and input
Improved dump methods: toJessie() and toJavaScript()
New method: intersection of two convex polygons with the algorithm by Sutherland-Hodgman
Board selection mode: Allow a graph to be in a selectionMode by calling the function board.startSelectionMode(). Once in this mode, the mouse allow to draw a rectangle selection on the board. To stop selectingMode, the function board.stopSelectionMode() must be called.
First implementation of texts as foreignObjects in SVG with attribute externalHTML:false
New method dumpToCanvas() for the SVG renderer
New construction variant for slope triangle based on just one glider.
Introduce property margin for lines. Controls where infinite lines end.
Allow arbitrary size units in moodle plugin.
New functions JXG.Math.sign(), JXG.Math.gcd()
New function JXG.Math.relDif() computes the relative difference between two numbers
Improved function plotting. Logarithmic curves should reach to the boundary of the canvas now, i.e. improved plotting of asymptotes.
Update JessieCode parser
New board attributes: zoom.min and zoom.max. This attributes allow to limit the zoom factors. zoom.min limits zoomOut (click on -) and zoom.max limits zoomIn (click on +). zoom.min supersedes zoom.eps whis is deprecated. zoom.min defaults to 0.0001 and zooom.max to 10000.0.
Improve plot quality of low-quality-mode function plotting.
Use linear interpolation for animation. If interpolation is set to false in moveAlong() linear interpolation is used.

Bug fixes

IE bug with innerhtml
Intersection of curve with line
GGB reader
SnapToGrid
Bug fix: setLabel, label for integral
Improved ticks
Bug fix: X() and Y() of hyperbola
Bug fix: animation callback is not executed
Handling of frozen elements: allow frozen elements to be draggable
Bug fix: Value() method for reflexangle and nonreflexangle
Bug fix: deepCopy
Make pointer events more stable
Bug fix: signedPolygon
Improved isPoint()
Enable polygons with no vertices
Add mouse wheel support to devices which support pointer events.
Fix hatch marks
Bug fix: dragging curves on touch devices.
Bug fix font-size of input and button elements.
Bug fix: slider.setValue()
Bug fix: exclude the border-width when the reading the dimension of the canvas.
Increase precision in root finding.
fixed return value of deprecated function Board.createElement
Bug fix: glider on undefined line. If one of the defining points is undefined the glider will disappear now.
Fixed grid so that fractional upper and lower bounds of the grid (fractions of gridX and gridY) arent rounded to the nearest multiple of gridX and gridY.
Bug fix: removeObject(turtle)
Bug fix projectCoordToCurve
Bug fixes for renderer='no'

Improved docs, unit tests

0.99.3

Important Notes

The property glider.position for gliders on circular objects like arcs and circles was changed from radians to relative values between 0 and 1. This may result in a different behaviour of gliders on arcs. If you need the previous mode, you have to set isGeonext:true as attribute.

New Features

This release contains the first steps of unifying the handling of elements defined by one coordinate, namely points, texts and images. At this point, all these elements allow the same construction methods and allow to be bound to an anchor element.
Improved dragging of texts and images
Much more complete docs. For example, all board attributes are now documented.

Bug fixes

Fix visibility of texts with coordinates defined by functions, e.g. slider labels.
Gliders on arcs and circles now keep their relative position.
Allow use of user supplied board id in JXG.boards
Fix group element to prevent infinite recursion if containing a dependent element
Make ticks for sliders less obtrusive
Improved (non-)handling of frozen objects
Fix several bugs in GEONExT reader

0.99.2

Important Notes

New Features

New element "checkbox" (ae3a29a1)
New element "input" (a21b20d3)
New element "button" (54b075ef)
New elements "majorsector" and "minorsector" (13eaed86)
New elements "nonreflexangle" and "reflexangle" (cae9ac35)
New attributes touchFirstPoint and touchLastPoint for lines with arrow heads (60b613f1)
New board attribute "ignoreLabels" to control when labels are chosen as drag elements (c8fb1063)
New functions sinh and cosh in JessieCode (6302869d)
New function log(x, b) in JessieCode (acc263dd)
New method for points: makeIntersection() (93f25574)
New method boundingBox() for polygons (23ee2d67)
Every element which accepts a point as parent element, now also accepts a coordinate array or a function returning a coordinate array as parent element. An invisible point having these coordiantes will be constructed. (aa9e4738)
Major speed up function graphs (a150405e, 13c3086c)
Improved automatic ticks positioning for axes and lines (4a44a516)
Enable dragging of sectors defined by three points (d00aec2b)
Groups: Allow manipulations of group by translation, rotation and scaling.

New group methods setRotationCenter(), setScaleCenter(), setRotationPoints(), addRotationPoint(), removeRotationPoint(), setScalePoints(), addScalePoint(), removeScalePoint(), setTranslationPoints(), addTranslationPoint(), removeTranslationPoint() (d21cb9b6)
Add arc as a subobject to sectors (82a7002a)
Improved docs (e9eaeed7)
Axis: allow zero minorTicks (59a72325)
Update moodle plugin (750c70df)
Introduce new elementClass OBJECT_CLASS_TEXT (49638421)
New generic method addParents() for GeometryElement (152ee279)
Enable dragging of curves (152ee279)

Bug fixes

Rotation of parabola based on a line defined by an ideal point (f6840b0)
Subscripts in labels work again (82a7002a)
Canvas renderer ignored line width zero (71669733)
Consider corner cases for upper/lower riemannsums (bc398d2d)
IE 11: show infobox on "over" event (1f82c9f50)
setName(): slider labels are not longer overwritten (99877c0d)
SVG line-endings of paths are set to "round" (e475c5e1)
hide/show polygons having labels (519c0a7b)
All edges of a polygon disappear if one of the defining points of the polygon is not real (5d3de96936)
labels of curves, sectors, angles stayed invisible in case they were previously non existing (62eb6b94)
Set attribute "needsRegularUpdate" of axis-ticks-labels to false. This speeds up rendering (6e9ce207)
Fix typo in Board.getCoordsTopLeftCorner, which forced JSXGraph to access the DOM during DRAG mode (f5b8af8f)
SVG markers in IE 10/11 (a35a2fee)
Sector defined by two lines was visible (at the wrong position) if the lines were parallel (6acb23fe)
Geogebra reader: Search for expression if element is not found (981ccd63)
Geogebra reader: Support hidden axes (4bd103e1)
CreatePolarLine: elementClass was compared with OBJECT_TYPE_CIRCLE (bc6b4bdd)
Rotation of internal texts (0fa3fa9e)
Rotation of VML texts and images (bc58740d)
Rename the method RamenDouglasPeuker to RamenDouglasPeucker (18042970)
Attribute generateLabelValue replaced by attribute generateLabelText (d5172614)
Simplify joinTransforms() in abstractRenderer (5eb86b1f)
Labels for sectors and arcs were not draggable (b914bba0)
Type.trunc(n, p) did truncate for p=0 and round for p>0 (09331d4c)
Do not generate sub and sup tags in texts if MathJax is used (ed9d94a4)
Ignore touch move events triggered outside the board (8a7e22e8)
Intersections involving circles with NaN radius (31d2900c)
Circumcircle of colinear points has wrong intersections (0998a284)

0.99.1

Bug fixes

Typo: polepoint
Docs: JXG.Math.Numerics has been ignored

0.99

Important Notes

This release contains a completely new plotting algorithm for function graphs and curves. If one wants to use the plotting algorithm of version 0.98, the attribute doAdvancedPlotOld:true can be supplied.

New Features

Add new method Value() to Arc which returns the arc length (12e64c9)
Allow jsxgraph board in a new window (opened by window.open()) (97742e7)
Enable snapToGrid for text and image elements. (bf4bd35)
New elements: polarline, polarpoint, radicalaxis (3d3154a2, 5f38b01b)
New element: stepfunction (989cb1f15)
Improved plotting algorithm (69f2f065b)
New board attribute "showClearTraces:true/false" (988a855b)
New function CardinalSpline. Catmull-Rom splines are a special case (33272063de1)
Use the MS pointer API starting with IE11
Improve the visual appearance of the navigation bar (b4cc30f08)
New method for GeometryElement: setName() (9c6009c07)
Speed improvements for text elements
Improved positioning of text elements (39c6be44)

Bug fixes

Fix and update documentation (9ec97a5)
Fix arrowparallel element in reader/geonext (71c8799)
Fix renderer/vml css position (#53, 149ffff)
Remove CSS .navbar class definition (c4bc15f)
Fix segment and glider on circle elements in reader/geogebra (6238190)
Fix dynamic domain for function plots in reader/geogebra (d6479b6)
Enforce the board's coordinate system for axes (#54, 25b6bc5, 8f7ff59, e4f6798)
Fix SVG arrow head positioning (2899284)
Remove pointerUpListener from document instead of the board container (bbcc73a)
Fix visibility of labels on default axes (#73, 2dd0f4b)
Fix attractors on curves with bezierDegree==3 (d8bcee9)
Fix dragging of images on touch devices (#88, 04018a6d)
Fix: angular bisector of parallel lines (#16, 2f8eb20fd)
Fix: multiple mousedown events (338c7eb2c)
Fix: VML renderer displays strokes with strokewidth==0 (565eeb9429)
Improved intersection line-curve ()2fed72fff3)
Bug fix Gauss-Bareiss determinant (a6a74c9ab)
Fix inequalities (01a06bdac5)
Fix case t=0 for cardinal splines (921a296)
Fix slopetriangle issue #79 (374a8632)
Fix visibility issue of polygon label (36a7e75f)
Fix ticks with negative distance (#82, c821364a385)
Fix visibility of polygon lines (#78, a82c50a1dc)
Bug fix: very short arrow heads (a794ef81a)
Bug fix: fill attribute for lines (5d7fc25c6f)
Bug fix: Circumvent a bug in the Safari JIT comiler on iOS which affects JSXGraph's unzip (d965574c)
Bug fix: snapToPoint, snapToGrid for linelines and circles (c1988ab5)
Fix getParents() for GeometryElement (120f536f2)
Bug fixes IE8 (eeeb0395d29)
Fix UTF8.decode() (5bb5dd66)
Fix text content parsing (ce157f194)

0.98

Important Notes

The text element representing an element el's label was moved from el.label.content to el.label
Speed improvements for SVG updates. This is realized by removing the whole SVG tree from the DOM, updating it and then re-adding it to the DOM. Please note that during some event handlers (e.g. update) the DOM elements that belong to the board that is updated CAN NOT BE FOUND by document.getElementById(). References to these elements need to be stored before the event handler is called. Also problematic are click handlers on elements on the board, in some browsers these might be ignored. To establish full backwards compatibility, a new board attribute called 'minimizeReflow' is introduced and has to be set to 'none'. To restrict this optimization to the SVG root node set it to 'svg' (default). For best optimization use 'all'.
New Moodle plugin for Moodle 2

New Features

Allow the user to forbid the emitting of events in JXG.Coords (49fa92d)
New attribute "attractorUnit" for points (0a21d6e)
Moved the label of an element el from el.label.content to el.label (d60dbd7, 4aecb4a, 087f2d2, 7e9d672, e443a7a, 2467aa2, #34)
Extend board.select() (14d8188, 8a3184b, bd18995, bec25a4, e8460a1)
The grid element can be restrained to a fixed area (30bc74f)
New option "axis" for integral; value can be 'x' or 'y' with a default of 'x' (40c5585, 9d87782, 42e00cd)
Slider max and min values can now be changed by setting its properties _max and _min (cb51daa)
New element "slopetriangle" (b6a8107)
Change element selection based on what was dragged last (a994fec, c9141c5)
Sectors (incl. angles etc) can now be defined by two lines instead of three points (5d50e28, 0ba4ba1, 3714dff, 4c56a3a)
Unify Sectors and Arcs (608c4e4, 03fac4c, 36eaaa2, f2256cf)
New type for the riemannsum element (674cb34, bd0d0d0)
Allow the user to set the maximum length of a tick label and the max precision (f4b9076)
New Moodle2 plugin (6d11868, 0ba96fe, a54d8d2, 8c8f2fa, 2b76da3, 8a8625f)
Texts may now be dragged by clicking anywhere in the text (a624b6d)
Allow the user to not register mobile Safari specific gesture events (56b057a, 17a5179)
Add new board attributes offsetX/Y (f8a0262)
Points can now also be created with a coordinate array instead of 2 resp. 3 numbers (cfe4a43)
Element name changes are now automatically reflected by its label (8aa9269, e9a9cf1)

Bug fixes

Set the board quality to low during touch and ms-pointer events (f17ec49, c4aa38f)
Make arrow heads exact (0a39704, 939339f, f1682d3)
Make circles centers snap to points if the circle line is dragged (a80c07e)
Fix touch and ms-pointer events (16f07d8)
Speed up axis updates (997eba4)
Attracting a glider to a point fixed (801b964)
Fix missing curve update when a curve's isReal flag switches (a8e1683, 35dc2a7, 8589b8b)
Fix Canvas and SVG root node size definitions (03a47fe)
Hide the right angle indicator dot when the angle is hidden (e3f3bf3)
Improve epub handling in Sigil (69b04c1)
The integral label now considers the offset attribute (396ca30)
Fix utils/type.sanitizeHTML() (0001071)
Fix polygons (231dd4a)
Fix point constraints handling (d5da0d0)
Element highlighting in IE fixed (c8fe0be)
Improved ms pointer api event handlers (1bc85b0)
Fixed jumping html texts (01716b3, 857f2e2, fb9a1b7)
Extend math/geometry.perpendicular to handle points that are far away (5e6c3d0)
Improving automatic tick handling (8ca2380)
Bugfix traced circles (f1532b1)
Fix Board.getCoordsTopLeftCorner() (47ecb27)
Fix ticks scale attribute (4afb67c)
Reduce closures (6e06d65, fbd40ba, 6a8be48, 7c56513, e11c2a6, 7165e4a, #44)
Fix the radius attribute of the angle and sector elements (6d11868)
Fix point attraction handling (0582747)
Fix Text.hasPoint() (608e697)
Text position in WebKit browsers was broken (89a6d6a)
Work around a dashed path bug in webkit (9c5ab12)
Pie chart highlight fixed (ab75d6e)
Fixed shear transformation (e0e8140)
Element 'hash' renamed to 'hatch', 'hash' is kept as an alias (5b7ecd4)
Point.free() now also removes transformations (8baa48d)
generateLabelValue() should not be used for fixed ticks (d5f3821)
Bugfix and performance enhancement of UTF8.decode() (#50, ecbf4af, 6044803, 576efbe, 53dadce, 124d94c, 88c9b44)
Fix slider attributes and properties (11f2250, 2684070)
Fix intersection arcs with lines (cb42d77)
Fix integral start/end interval (b8365bf)
Update the glider when the user leaves the drag mode (b75ad28)
Fixed deleting an attractor (2a91eb2)

0.97

Important Notes

Wrappers.js was removed. This includes the removal of several wrapper functions in JXG.Board. Please use their non-wrapped corresponding methods in Math, JXG.Math, JXG.Math.Geometry, and JXG.Math.Numerics (c857dc4, d8f8f6a)
- angle, rad, distance: Use JXG.Math.Geometry.*
- D, I, root, lagrangePolynomial, neville, riemannsum: Use JXG.Math.Numerics.*
- factorial, binomial, cosh, sinh: Use JXG.Math.*
- round, abs, acos, asin, atan, ceil, cos, exp, floor, log, pow, max, min, random, sin, sqrt, tan: Use Math.*
- trunc: Use Math.floor
- sgn: No replacement
New makefile: make.py was replaced by a GNU make Makefile. Type make core-min to build a jsxgraphcore.js and see the Makefile for other build targets (245c1e3, 8d8ed2c, 824725e, 8b5aa0e, 160964c, b8f576f, 1c2ee4a, 057e05d, df4a13a)
The GeonextParser now outputs JessieCode (https://github.com/jsxgraph/JessieCode) instead of JavaScript.
Board attributes in JXG.Options were moved from JXG.Options to JXG.Options.board (3e39b82): showCopyright, showNavigation, takeSizeFromFile, renderer, takeFirst, animationDelay, zoom, and pan.
The list of boards and the list of available elements were moved from JXG.JSXGraph to JXG (c0048e7, e202e15)
Pstricks was removed
Board.getElement was renamed to Board.select and will replace JXG.getRef(erence) in a future release (c857dc4, 92c18ac)
Reorganization of the repository: All files in src/ were renamed to all lowercase and moved into subfolders (bb301e0, 5eaf33b, fe457c9, 66ba3f2)
Intersection points now have a type value of JXG.OBJECT_TYPE_INTERSECTION (86a21fe)
The board methods intersection, intersectionFunc, and otherintersection were removed. Please use the elements 'intersection' and 'otherintersection' (b76004c)
The unused methods JXG.readOption and JXG.collectionContains were removed (f322fa6, 8879354)
JXG.JSXGraph.registerElement was moved to JXG.registerElement (e202e15)
XML parsing routines were moved from JXG.FileReader to JXG.XML (c2e25ac)
Bugfix texts in headless environments (like WebWorkers or node) (97cb102)
Export JXG namespace to WebWorker environments (f4816e1)
Fix the size definition of SVG and Canvas renderers (e202a54, c0b40cc)
Fix Tick creator function (41d97be)

New features

Prepared "virtual finger" (2bd4583, d71230a, 11548fd, 11548fd, 3e7d1e5, 5134b0b, 45d3d76)
Snap to grid for lines (86b2295)
Hash marks for lines (#7, f8a6723, c2179a4, 2643817, ffbd40e, b548f59)
Implemented Pointer API support (#18, 8820f3f, 4d22876, 235ee34, 97a3f6e, 24827d3, 535f871)
Take CSS transformations of type matrix, scale, and translate into consideration (a1da3b7). This ensures better combatibility with EaselJS.
New element 'tapemeasure' (f1698c2, e6bb86a, 5717f14)
JXG.Math.Numerics.regressionPolynomial now also accepts arrays of JXG.Coords (2fef545)
New linear regression algorithm TheilSenRegression in math/statistics (3fdd673)
Polygon vertices will snap to grid if the polygon is dragged (19a5a1d)
Implemented innerPoints attribute for ellipse (#20, 3a9180e)
Configure and use linting tools, minor refactoring (c790fcb, 5ec6a53, 9f1b6c4, 2545716, 985ea61, ee2be46, b2d95ce, 18d32e0, 479e39c, 069033a, 3e39b82, e139837, 3234de5, 20c6b43, 7f58c56, 367596a, fa4f5ec, 99da70a, b8a9ebd, 85637c9, 224a2a8, 56a9bdc, 27ba870, fe457c9, ae9f7a3, 27a03fe, 9e9f429, e5e5216, 6533125, daa2239, 5e037b3, 8250d55, 1ed9914, ae9609d, 73fdd68)
New helper function JXG.swap; Used to swap two elements in an array (bdea634)
New optional parameter for ticks: generateLabelValue (7511ee7)
New board event 'boundingbox', fired everytime the boundingbox changes (2dbeb60)
Function and number arrays are allowed as parent elements for sectors, too (74f6482)
A predefined div can now be provided to jessiecode/jessiescript tags (550dcd2)
New arrow head for the SVG renderer (9b161a9)
New tick property: tickEndings (7bfc59c)
The interpolation along an array of (x,y) coordinates in Point.moveAlong() can be overriden (2ef875c)
Implemented the AMD pattern (e1dd0fc, e202e15, e4d74e2, e2ef764, 2d76afc, c451f7c, 0aea31e, 0260f46, 14d1a1e, c53fb42, 1d13837, 3c2fa9a, 82dcf24, f707aab, 8695226)
JXG.debugLine outputs the given debug strings and the line from which it was called (9e4460f)
New build scripts using requirejs and uglifyjs (46e0237, ea12ae8, a53516a)
JXG.merge: merge one object into another one without creating a copy (99bc1bc)
New property for ticks: anchor, defines the position of the tick with value 0 and accepts 'left', 'middle', and 'right' (f8a6723, c2179a4, 2643817)
Enable the use of the Google caja html sanitizer function if available. The use is controlled via the 'usecaja' attribute for texts (3a9180e, 3205b13)
Don't analyze the content of a text if its new attribute 'parse' is set to false (3205b13)
Allow specific Geonext tags in texts (935df2b)
loadBoardFrom*() functions now accept a callback function which is called when the file readers are finished loading the construction (#33, 25aa537)
Expose Turtle methods and properties to JC (f11c037)
JXG.Dump preserves snapToPoint attribute (228567c)
Improved availability of element properties and methods in JessieCode(7af504a)
Polygon can be hidden independently from their borders (8e95f2c4, 3d219f4)
The label of a curve will disappear if the curve is not real (209cfc1)
Allow multiple versions of JSXGraph (arbitrary many 0.97 or higher, one 0.96 or lower) simultaneously on the same HTML page (2de1da4)
Enhanced intersection methods for curves (c0491e7, ea23470, 1301d5e, afaa691, 2d5d668, 4c53147, 6fa16e8, 9de88fb, be247fd, 4df27a3, 7ba41bf, d030108)
Preparations for a better integration of parameter normalization (d3f4ead)
New algorithm GrahamScan in math/geometry to determine the convex hull of a set of points (33a9add)

Bug fixes

Speed improvements in unzipping routines (b5cb640)
Enabled file reader support for node (274eb21)
Speed improvements for EventEmitter (8f05b9c)
Fixed border placement of polygons (a72c31e)
Set axis name to '' (a72c31e)
migratePoint: remove old label (e2259cb)
Handle snaptopoint/grid/attractors during creation (0f30c60)
Fixed grids in inverted bounding boxes (e26214f)
Fixed Point.Dist() in case one point is not real (8a51da4)
migratePoint() label fix (8a51da4, edcf13c, 184c66f, 285de98, 2cd6613, 4e371dd, 7dc981d)
prevent access to incomplete bezier segments (fd09f8e)
fixed gliders on points (ccf2c58)
prevent event bubbling on mouseup and touchend for navigation bar (#25, 860491c, 1694e4f)
fixed attribute frozen (146a702)
jessiecode: fixed NaN value (9ee04d8)
migratePoint: new parameter copyName to enable the transfer of the point's name (6c0234a)
Speed improvements for html texts and SVG texts (fabc54a)
triggerEventHandlers now only accepts an array of events and parameters (5f88bac, 234c136)
Bugfix conic (3a3605b)
Speed improvements coords (4633732)
bugfix JXG.Math.factorial (9f1b6c4)
bugfix line label offsets (98b6a95)
Update the glider relative position during suspended updates (3317a1e)
Fixed ticks on "skew" lines (7bfc59c)
Fixed a division by zero in the parabola element (e6c714a)
Fixed traces of curve elements (3d6813b, 8f23d84, bbee2a4)
Reverted text colors to black (1a28fc9)
Handle degenerate conics more gracefully (ffe4f7d)
Make projectCoordsToCurve() more robust for function graphs (0c0abb3, 7df9f48)
Prevent double update for gliders (f34c724)
Prevent endless loops in EventEmitter.trigger() (b751699, 9abb0d7)
Fixed groups (#11, 4ed4feb, e424c63, 11699d2)
Fixed JXG.Point.visit() (b16c713)
Elements with the attribute highlight set to false now will never be automatically highlighted (25d986a)
JXG.Dump lost required attribute values (4e69297)
GeonextReader: Change the background color of the board (4e69297)
Increase precision in MathNumerics.fminbr to make gliders stay constant on curves (5c8c02a)
The labels of initially hidden elements will be shown when the element is made visible (a716501)
Pass the visibility of a polygon down to its borders on creation (4b5af66)
Bugfix ellipse hasPoint method (280f018)
In case there is no label subelement in JXG.Options for a specified element the label attributes given by the user were discarded (397208b)
Bugfix tick label rounding for values close to zero (ae93bac, aeabd18)
Fixed polygon gliders (2f68165, 5745c67)
Circumcircles created with the circle creator will use circle default attributes (501e916)

0.96

Important Notes

New Features

Polygons can be dragged (402b92c, 4541ce3, 6187eb0)
Introducing new GeometryElement attribute scalable (6187eb0)
Angles can be fixed via setAngle() and freed via free() (5ee106f, b9bd601, 1f25a5f, 8e1bce6, ad857bd, 8d95d75)
Image hasPoint now checks the whole image area (8d95d75, d96e6d7, a4e0bc5, a9f3f73)
JSXGraph can be used inside node.js; Rendering to PNG requires node-canvas (ab00ec3, 6106356, 8b00933)
Construction can be zoomed by dragging ticks (1215fba, bf01231, 818e013, 9ef977f, 31690db, bdf1159, b0e6f6a, cdb2ac7, 459fba6)
'random' option for Riemann sums (d498fa2)
Documentation now lists events (a7ae116, da9b0a0, 63cc708, 66fb7a7, 13e4993,
New interface EventEmitter which implements event handling (eeffbe1)
JSXGraph can be run inside Windows 8 "Metro" Apps (1281086, b1935d8)
GeometryElements fire events when an attribute gets changed (7fb8ab6)
Introducing a .sketch file reader (08c8f02, de3c4b2, 3cf0d30, efc806d, 9febcdf, 9e19054, 8232d43)
Enable Curve.X() and Curve.Y() for curves with bezierDegree=3 (10c8c3e)
Intersection of segments (de10bc4, eef5264)
New attribute alwaysIntersect for interesction points of e.g. segments to be shown even if the segments don't interesect anymore (9670c8e, 488946f)
Introduce JXG.Math.Geometry.distPointLine() (9b0bad3)
Curve-line intersection now respects property alwaysIntersect (856db81)
Improved speed of freeBoard() (3d3dc72)
The distance of ticks can be set via setAttribute/setProperty now (cb80999)
GeonextReader now uses the viewport tag if available (d06a020)
Implement boolean attribute hasInnerPoints for circles (84e0d58)
Curves can be dragged (a729000)
Restrict zoom with JXG.Options.zoom.eps (d63c8de)
Get current JSXGraph version with JXG.version (c46d563)
Implemented X() and Y() methods for labels (#17, 8acaa51)
Zooming and panning can now be configured (#5, f7e7799)
Segment labels are placed on 'top' (1b53f3a)

Bug fixes

Fixed the return value of removeObject (0aa328f)
Tick calculation with majorHeight and minorHeight equal to zero was broken (9bfcb47, e9535d2)
Texts won't jump while being dragged anymore (2ba238e)
Several documentation errors fixed (84f10ce, 917250a, 6277684, dcd0c6b, 394e149, fed7998)
Bug fix: intersection of line with curve, where curve has curveType 'plot' (c10bbeb, 7e8c358, d5500e9, 0f7cb59)
Fixed and improved groups (0145603, 5f9841b, de01c99, 7b03a70, 06bae53)
Bugfix arrow head creation (6f90382)
Arc/Arc intersections fixed (acac2e5)
radar charts fixed (8b458b6)
Added newline in Point.js (4054a7e)
Include CSS transformations in the computation of the coordinates of the top left corner of the board (13226bf, 0c19743, c9b25d8, c3fc4f5, acf844a)
Polygon labels fixed (#14, 3c4f4c5)
fontSize given as a string caused problems (e2f94b0)
bugfix createLabel() (8e5c8d1)
0 ticks are hidden again (3419ecf)
Images now use the absolute value of the given height/width (1468387)
Fixing turtle.hideTurtle(), turtle.showTurtle() (bc549a1)
Remove ticks only of they exist (e74a68a)
Work around a FF17 bug regarding SVG fill attribute with value 'none' (1760350)
Bugfix turtle (b09af0e)
Arrows can't be set on curves with less than two datapoints (75faf54)

0.95

Important Notes

We migrated from subversion to git. To access pre-git changesets you can use our trac system that is still online. You can use this url and append the revision number to see the changelog http://sourceforge.net/apps/trac/jsxgraph/changeset/, e.g. http://sourceforge.net/apps/trac/jsxgraph/changeset/1234 for revision r1234.
Merged coordinate parameters into arrays for all setPosition, setPositionDirectly, and setPositionByTransform methods (r2825)
Old intersection functions are now marked as deprecated, you should not rely on them being available in future releases (r2846)
Hooks have been refactored and improved. Please use on/addEvent resp off/removeEvent now to add or remove events to the board. The addHook, removeHook and updateHooks functions have been marked as deprecated and might be dropped in a future release (r2864, r2866 & r2867)
The behaviour of board event handlers have been changed. mousedown and touchstart events started outside a board do no longer trigger any mouseup resp. touchend events (r2886 & r2887)
Default names for texts, angles (af4701e, 18ac2ae)
The offsets property has been renamed to offset (5ea97f5)

New Features

Attributes for grid and axis can be given on initBoard (r2841)
Scale ticks and represent the scale by appending a string to each tick label (r2842)
JSXGraph can now be used inside WebWorkers (r2807, r2811 & r2874)
Two finger manipulation of circles (r2896 & r2897)
objectsList in Board holds the elements in order of creation (r2898, r2899 & r2901)
added rgba values to RGBParser (r2912)
Allow in Curve.hasPoint() for plots to start search at an arbitrary position (r2939)
Animate the size of a point (r2950)
Implemented minor and major arcs. They can be constructed by using the element type minorarc and majorarc or by using the element type arc with property type set to minor or major.
New input specific events (877d5ac)
New board option animationDelay which controls the animation fps (d093a9e)
New options for texts: anchorX 'left', 'middle', or 'right' and anchorY 'top', or 'bottom' (78608c0, f1aa9de, 8d7f467, bc8cbd6, bbb607b, 7e69d11) and rotate (181ee73)
Circles and lines have a new property snapToGrid. Whenever a line or circle is moved and this property is set, the parent points with the snapToGrid set to true will snap to grid once the users releases the circle or line (#3, 2a774e1)
New option labels for Ticks. In case of special ticks the n strings given in labels are taken as labels for the first n ticks (c188efe)
New options type, orthoType and orthoSensitivity for angles. See the docs for their meaning (8f0ed8c)
New options for infobox which shows the coordinates of a point. Beside the text options, the number of digits can be adjusted. Default css class is JXGinfobox.

Bug fixes

Fixed flickering of gliders on plots (r2828 - r2829 & r2876)
Bugfix setPosition of text elements (r2833)
Simplified creation of intersection points (r2833)
Added error check in tangent creator (r2833)
Offsets for ticks (r2834)
Fixed ticks ($68, r2835, r2836, r2843, r2845, r2889, r2890 & r2925)
Fixed JXG.Text.getSize() (r2837)
Bug fix: createArrow, createArrowParallel: arrows are shown if strokeOpacity is a function with inital value 0 (r2849)
Disabled and re-enabled drag highlighting devices (r2860, r2934 & r2935)
Slowed down zooming with gestures (r2855)
Fixed placement of labels (r2863, r2911, r2913)
Transformation "reflect" on lines defined by ideal (infinite) points (r2872)
Jumpy scroll wheel zooming fixed (r2873)
Enhance sensitive area for points with non-default stroke width (r2877)
Fixed issues with gliders on lines with at least one ideal point (r2878, r2880, r2882)
Bugfix event handlers for elements (r2879)
Using the touches property of the event object instead of targetTouches fixes some bugs (r2888)
Fixed arrows (r2891)
Enlarge the drawing region slightly to hide the small sides of thick lines (r2892)
Rays through ideal points change their orientation (r2893)
Fixed reflections: instead of JXG.Math.Geometry.reflection use transformations (r2894)
Load all available renderers that could be used in the current host (r2900)
Bug fix: Filled polygon in CanvasRenderer? in case one point does not exist (r2907)
Use asynchronous Mathjax (r2914)
Fixed JXG.Curve.bounds() (r2918)
Remove deleted elements from their ancestors dependents list (r2919)
Bugfix event handler flags (r2923)
touchMoveHandler: Ignore slowpoke events (r2927 & r2929)
reset board mode if no more touches are found (r2931)
Bugfix: hide invisible grids (r2936 & r2938)
Fixed tick heights issue in boards where unitX != unitY (r2940)
Fixed move origin on touch devices (r2942)
Adjust size of arrow heads at least for small stroke width values (r2948)
Suspend update in JXG.freeBoard() to prevent dependency errors (r2949)
Bug fix: layer for gliders (r2952)
Bug fix: properties of gliders (r2953)
Pass event objects to internal event handlers, if available (929cb40)
Copy general element properties only when creating primitives (95603ef, d5f2b87, 1b54d9a, 5e0486d, 39b3e82)
Do a full update after changing the properties of an element with needsRegularUpdate set to false (6463b8c, ff4fe3a)
Angle texts are moving again (e9c68b1)
Set margin to zero if the line has arrows set (6582086, bd7518a)
Hide circles with non-real midpoints (381b287)
Don't update ticks if board height or width equals zero (c7c2e23)
Various fixes in GeonextReader (006c5da, 59ac4c2, 1fecf7a)
Ticks are now deleted when their line is removed (bda7e7f)
Text rendering speed improved (d4c0bf2, b955052, fa91ce0, 434c87b, 12b9922)
Speed improvements for arcs and sectors (d2fdee1, e0ee6c9, 572d123, fdabf15, c6a70a4, 8acbb60)
If no element is dragged or found, don't stop the event propagation (324f7c6)
The radius of an angle can be set via setProperty() (bc0e21c)

0.94

Important Notes

The property line.labelOffsets has been moved to element.label.offsets (r2765)

New Features

Update build script: allow the user to choose the test server via --server (r2691)
Implemented mathematical modulo JXG.Math.mod (r2698)
Multitouch handling of lines in case one defining point is an ideal point and general improvement of multitouch dragging of lines (r2700, r2701)
Make normals and parallels (to a line) through one point draggable (r2706)
Improved gliders on lines defined by an ideal point (r2744)
Added hex2rgb conversion (r2745 & r2746)
Introduced the point options snapToPoints (r2758, r2759, 2760 & r2762)
Label positioning (r2764 - r2767, r2769, r2770)
Prevent reevaluation of a curve if neither the viewport nor the definition of the curve have changed (r2781)
GeonextReader: visibility of labels of lines and circles (r2792)
setProperty() called on a group sets the properties of all members of the group (r2794)
Internal event handling system (r2795)
Enabled transformations for data plot curves (r2799)

Bug fixes

Fixed vertical navigation (r2684)
Fixed a problem with the artificial endpoints of Catmull-Rom splines (r2688)
Fixed typos regarding integral helper points in Options.js (r2690)
Disallow dragging of elements depending on a glider (r2693 & r2694)
fixes for circumcircle (r2695)
degenerated case (r2695)
circle should be draggable if defined by free points (r2695, r2696 & r2697)
Fixed translation of lines in case one of the defining points is an ideal point (r2699)
Fixed problems with degenerated circles (r2702)
Fixed a bug regarding multitouch dragging (r2704)
Use curve.Y() instead of curve.yterm() in the integral element (r2710)
Update text in JXG.Text.setText()
Deactivate mouse events as soon as the first touch events occurs to fix mixed mouse/touch events on the iPad (r2715, r2748-r2753)
Update the board after setting a new radius (r2716)
Created points in regularpolygon now have the type JXG.OBJECT_TYPE_CAS instead of the (free) JXG.OBJECT_TYPE_POINT (r2717)
Refactored glider update (r2719 - r2722, r2724 & r2725)
Fixed ids and names of parallel and normal far points (r2718 & r2723)
Fixed polygons in GeonextReader (r2726)
Fixed angles in GeonextReader (r2727)
Bugfix orthogonalprojection (r2730, r2731)
Fixed of lines as parametric curves (r2736)
Added missing board update in JXG.Text (r2737)
Glider on polygon fixed (r2761 & r2762)
JXG.Line.hasPoint() fixed (r2763)
Fixed Canvas- and SVGRenderer inside divs without explicit height/width (r2780 & r2801)
Ticks with ticksDistance set and insertTicks: false are now displayed correctly (r2782)
Fixed "undefined is not an error" bug on iPad (r2785)

0.93

Important Notes

Renamed element perpendicular to perpendicularsegment. perpendicular now is a straight line instead of a segment (r2360)
Mouse wheel zoom is disabled by default, you can enable it by setting the property zoom to true in JXG.JSXGraph.initBoard ($34 & r2369)
Hooks 'mousedown', 'mouseup', and 'mousemove' have been renamed to 'down', 'up', 'move'. Those hooks work on mouse & touch devices. Their mouse equivalents now only work on devices controlled by a mouse. The corresponding touch versions are called 'touchstart', 'touchend', and 'touchmove' (r2514, r2515 & r2516)
Removed obsolete method JXG.Turtle.evalCoords (r2378)
JXG.Curve.{doAdvancedPlot,numberPointsHigh,numberPointsLow} moved to JXG.Curve.visProp. Use JXG.Curve.setProperty() to set them (r2489)
Some of the subelements had to be renamed. Please check your constructions with this version and consult our documentation (http://jsxgraph.uni-bayreuth.de/docs/) if you're having trouble accessing any subelements. ($61 & r2623)

New Features

New board properties to use in initBoard: zoom (Boolean, default false) and pan (Boolean, default true) ($34 & r2369)
Element 'perpendicularsegment' replaces 'perpendicular' which now is a straight line by default (r2360)
Element 'tracecurve' (r2372 to 2379)
New methods for JXG.Polygon: addPoints (attaches new vertices at the end of the vertex list), insertPoints (insert new points behind an arbitrary vertex) and removePoints (removes arbitrary set of vertices) ($39, r2398, r2400 and r2401)
Construction alternatives for lines: Use two functions returning the point's coordinates in an array or use one function returning the line's homogeneous coordinates ($9, r2407 & r2408)
Traces can now have different visual properties than the traced element they belong to. Use the traceAttributes property of the traced element just as an properties object like in setProperty ($17 & r2410)
The new Angle attribute type defines the look of the angle: sector, if it should be a sector all the time, square for a square (right angle)/parallelogram (general) to indicate a right angle, and auto for a sector in general and square if the angle is close to a right angle ($49, r2437, r2438 & r2479)
Parallel lines are now constructed without an invisible parallel point (r2451)
Label properties can now be given via a subelement label in the properties object given in create() ($43 & r2453)
JXG.Curve has a new attribute called handdrawing (r2458 & r2459)
Magnetized points, see the new point attributes attractor, attractorDistance, and snatchDistance for details (r2460-r2463)
snapToGrid is now an attribute of JXG.Point instead of JXG.Board. This way, it can be decided for every single point to snap onto a grid and what grid ($46, r2463 & r2487). If snapSize* is less or equal zero the axis is used (if available (r2611)
Highlighting can now be disabled with the element attribute highlight. Default value is true ($47 & r2476)
The radius of an angle can now be a function ($50 & r2481)
Preparations for polynomial arithmetics (r2484)
Preparations for a file format (r2485, r2488, r2495, r2499 - r2502, r2507, r2509)
Segments can have a fixed length now (r2492 - r2494)
Catmull-Rom-splines (r2510, r2512 & r2528)
Introducing themes (r2539, r2541 & r2545)
Angle has a new method called Value() that returns the currently displayed angle (r2548)
Set the zoom level of a board directly with JXG.Board.setZoom (r2563)
Attributes cssClass & highlightCssClass for texts (r2564 - r2567)
Method free() for JXG.Point and JXG.Text, to free a bound point/text (r2572 & 2612)
New method def() for JXG to ease default parameter handling (r2617)
JXG.indexOf() finds elements in an array (r2629)
New attribute for JXG.Polygon hasInnerPoints changes the behaviour of JXG.Polygon.hasPoint(): If true, hasPoint returns true if the user points inside the polygon (r2651 & r2652)

Bug fixes

Fixed freeBoard issue ($35 & r2365)
Hide infobox on touchend (r2362)
Updated reference card (r2363)
Resizing the container now works with Canvas, too ($38 & r2368)
Disabling a label via setProperty({withLabel: false}) and re-enabling it won't cause a second label to appear ($37 & r2370)
A midpoint with complex parents could be misplaced (r2375)
Prevent dragging of axis points (r2391)
Fixed layer of the glider in a slider (r2397)
Fixed width and height computation of texts (r2399)
gradientSecondColor got lost during setProperty (r2415)
Set property withLabel to true on an element without a label produced an error ($40 & r2416)
Listen on the whole document for touchEnd events, not only on the board's container (r2420)
Enable navigation controls on touch devices (r2464)
The ids of the points used to generate a regular polygon can now be given in the attribute object ($48 & r2478)
Dragged objects are now highlighted (r2490)
Improved multitouch dragging of lines (r2497, r2498 & r2503)
Traces are deleted as soon as the element's trace attribute is set to false (r2511)
Sliders with snapWidth set to e.g. 1 not always returned an integer value (r2519 & r2520)
Fixed an issue with major ticks with height < 0 ($55, r2517, r2518 & r2522) and improved ticks in general (r2523, r2524, r2525 & r2553)
Fixed some bugs in Turtles ($56, r2526, r2527, r2529, r2533 & r2537)
JXG.trim now deletes whitespaces, not 'w's (r2543)
If a free point is converted to a glider with JXG.Point.makeGlider(), it is now located near its last position as a free point (r2544)
JXG.Legend had no visProp (r2561)
Constrained points were visible only after an update (r2584)
Hide Polygon if at least one of the vertices is non-real ($59 & r2585)
Fillcolor of a point was set to highlightStrokeColor on highlight (r2587)
The z-Index of the board's div is now added to the z-Index for html text elements (r2598)
Minor bug in GeometryElement fixed (r2602)
Set infobox to fixed (r2603)
Clear traces on object removal (r2610)
Repaired JXG.Point.visit() (r2631)
Fixed a bug in JXG.Polygon.remove() (r2634)
Fixed highlighting using custom DOM events (r2637)
Fixed a bug in JXG.addEvent() (r2638)
Set grid dash from 2 to 0, because 2 slows down the iPad considerably (r2641)
Fixed a bug in JXG.createGroup (r2653)
Fixed a bug preventing the automatic labeling of Angles (r2655 & r2656)

0.92

Important Notes

JXG.Math.Numerics.RamenDouglesPeucker has been renamed to JXG.Math.Numerics.RamerDouglasPeucker (r2317)
JXG.Board.getRelativeMouseCoordinates() has been renamed to JXG.Board.getCoordsTopLeftCorner (r2327 & r2329)

New Features

Bug fixes

Fixed restriction to max 34 Boards on a single HTML web page and raised it to 65535 (r2313)
Line with undefined endpoint is fixed ($15 & r2322)

0.91

Important Notes

JXG.Point.visit()'s parameter repeat has been replaced by the new parameter options which can used to provide settings like a repeat value, a callback function or speeding effects. It is however still possible to provide repeat as a third parameter instead of an options object to support older mathlets ootb without the author having to make readjustments. This behaviour might be dropped in future releases, so please adjust your scripts accordingly.

New Features

Zoom with mouse wheel (r2188 & r2272)
Optional dot for right angles ($18 & r2197)
Adjust the renderer size if the board is resized (r2207, r2208 & $21)
Callback functions for animated point movement ($25, r2211 & r2214)
Callback functions for visprop animation ($26 & r2222)
Point movement animations got the new option "effect" ($5, r2279)
User defined execution context for hooks ($29 & r2220)
New Slider attribute 'precision': manages precision of slider value displayed in its label (r2230)
Polygons can now be removed via board.removeObject() (r2240)
Improved zooming (r2231, r2241, r2242 & r2243)
Improved mouse and touch events and enabled dragging lines, circles and texts (r2251, r2253-r2254, r2256-r2264, r2266-r2271)
Max number of iterations in JXG.Math.Numerics.fminbr can be adjusted with JXG.Math.Numerics.maxIterationsMinimize (r2283 & r2288)
Max number of iterations in JXG.Math.Numerics.fzero can be adjusted with JXG.Math.Numerics.maxIterationsRoot (r2285)
Implemented remove() for sliders ($31 & r2296)

Bug fixes

Element copies from tracing sent to background ($13 & r2190)
Traced intersections leave a copy at [0, 0] on initialization ($14 & r2191)
General elements should not be put into the highest layer but into the lowest ($16 & r2192)
Attribute 'withLabel' was missing in the docs (r2193)
Suppress error message caused by empty path strings (r2194 & r2205)
Draw segments correctly from the start (r2196)
CanvasRenderer: Don't draw invisible points (r2196)
Implement show/hideElement for JXG.Ticks (r2203 & $20)
createCircumcircle does not return arrays anymore (r2204)
Check if document.selection.empty is a function in Board.mouseDownListener (r2206)
Perpendiculars can now be constructed as straight lines ($23 & r2213)
Drag'n'Drop of elements bug on Android devices fixed ($27, r2215 & r2216)
initial position of helper point in createPerpendiculer fixed ($24 & r2223)
initial positions of axis labels fixed (r2232)
harmonized default tick distance attributes and documented ticks (r2234 & r2235)
fixed display of 0 with certain ticks distances (r2236 & r2237)
fixed using HTML tables as datasource for charts (r2238)
proper placement of axis labels ($1 & r2277)
GeonextReader: straightLines (r2284)
Adjusted Layers of Compositions: Polygons are now below lines (r2287)
IntergeoReader & CinderellaReader: Compositions are working now (r2289 & r2290)

Files

CHANGELOG.md

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CHANGELOG.md

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1.8.0

New features

Improvements

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1.7.0

New features

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1.6.2

New features

Improvements

Bug fixes

1.6.1

New features

Improvements

Bug fixes

1.6.0

New features

Improvements

Bug fixes

1.5.0

New features

Improvements

Bug fixes

1.4.6

New features

Improvements

Bug fixes

1.4.5

New features

Improvements

Bug fixes

1.4.4

New features

Improvements

Bug fixes

1.4.3

New features

Improvements

Bug fixes

1.4.2

Improvements

Bug fixes

1.4.1

New features

Improvements

Bug fixes

Ecosystem

1.4.0

New features

Improvements

Bug fixes

Ecosystem

1.3.2

Improvements

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1.3.1

New features

Improvements

Bug fixes

1.3.0

New features

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1.2.3

Improvements

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New features

1.2.2

Improvements

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Experimental

1.2.1

Bug fixes