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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| import pya | ||
| import math | ||
| from . import * | ||
| from pya import * | ||
| from SiEPIC.utils import get_technology_by_name | ||
|
|
||
| class Ring(pya.PCellDeclarationHelper): | ||
| def __init__(self): | ||
|
|
||
| super(Ring, self).__init__() | ||
| TECHNOLOGY = get_technology_by_name('EBeam') | ||
|
|
||
| # declare the parameters | ||
| self.param("silayer", self.TypeLayer, "Layer", default = TECHNOLOGY['Si']) | ||
| self.param("r", self.TypeDouble, "Radius", default = 10) | ||
| self.param("w", self.TypeDouble,"Width",default = 0.5) | ||
| self.param("g", self.TypeDouble,"Gap",default = 0.2) | ||
| self.param("b", self.TypeDouble,"Bus Length",default = 50) | ||
| self.param("d", self.TypeBoolean, "Drop", default = False) | ||
| self.param("n", self.TypeInt, "Number of points", default = 2048) | ||
| self.param("p",self.TypeLayer,"Pin Layer",default = pya.LayerInfo(1,10)) | ||
| self.param("oxideopen", self.TypeLayer, "Oxide Open Layer", default = TECHNOLOGY['Oxide open (to BOX)']) | ||
| self.param("devrec", self.TypeLayer, "Dev Rec Layer", default = TECHNOLOGY['DevRec']) | ||
|
|
||
| def display_text_impl(self): | ||
| return "Ring(R=" + ('%.3f' % self.r) + ",g=" + ('%g' % (1000*self.g)) + ")" | ||
|
|
||
| def coerce_parameters_impl(self): | ||
| pass | ||
|
|
||
| def can_create_from_shape(self, layout, shape, layer): | ||
| return False | ||
|
|
||
| def produce_impl(self): | ||
|
|
||
| # compute the arc | ||
| # fetch the parameters | ||
| from SiEPIC._globals import PIN_LENGTH | ||
| from SiEPIC.extend import to_itype | ||
| import math | ||
| from pya import DPolygon | ||
|
|
||
| pi = math.pi | ||
| # This is the main part of the implementation: create the layout | ||
|
|
||
| dbu = self.layout.dbu | ||
| ly = self.layout | ||
| shapes = self.cell.shapes | ||
| LayerCladN = ly.layer(self.clad) | ||
| pts_o = [] | ||
| pts_i = [] | ||
| da = 2*pi / (self.n) | ||
| r = self.r/dbu | ||
| r2 = self.r | ||
| w = self.w/dbu | ||
| g = self.g/dbu | ||
| b = self.b/dbu | ||
|
|
||
| #create the circle | ||
| for i in range(0,self.n+1): | ||
| bend_ox = (r+w/2)*math.cos(i*da) | ||
| bend_oy = (r+w/2)*math.sin(i*da) | ||
| bend_ix = (r-w/2)*math.cos(i*da) | ||
| bend_iy = (r-w/2)*math.sin(i*da) | ||
| pts_o.append(pya.Point.from_dpoint(pya.DPoint(bend_ox,bend_oy))) | ||
| pts_i.append(pya.Point.from_dpoint(pya.DPoint(bend_ix,bend_iy))) | ||
|
|
||
| pts_o.append(pya.Point.from_dpoint(pya.DPoint(0,r+w/2))) | ||
| pts_i.append(pya.Point.from_dpoint(pya.DPoint(0,r-w/2))) | ||
| pts_o.append(pya.Point.from_dpoint(pya.DPoint(0,0))) | ||
| pts_i.append(pya.Point.from_dpoint(pya.DPoint(0,0))) | ||
| ring1=pya.Region() | ||
| ring1.insert(pya.Polygon(pts_o)) | ||
| ring2=pya.Region() | ||
| ring2.insert(pya.Polygon(pts_i)) | ||
| ring = ring1-ring2 | ||
| self.cell.shapes(self.l_layer).insert(ring) | ||
|
|
||
| # draw oxide open | ||
| self.cell.shapes(ly.layer(self.oxideopen)).insert(pya.Box(DPoint(-to_itype(r2+5,dbu),-to_itype(r2+5,dbu)),DPoint(to_itype(r2+5,dbu),to_itype(r2+5,dbu)))) | ||
|
|
||
| #DEV BOX | ||
| self.cell.shapes(ly.layer(self.devrec)).insert(Box(DPoint(-to_itype(r2+5,dbu),-to_itype(r2+5,dbu)),DPoint(to_itype(r2+5,dbu),to_itype(r2+5,dbu)))) | ||
|
|
||
| #insert bus waveguide | ||
| box1 = pya.Region() | ||
| xa = -b/2 | ||
| xb = b/2 | ||
| ya = -r-w/2-g-w | ||
| yb = -r-w/2-g | ||
| box1.insert(pya.Box(xa,ya,xb,yb)) | ||
| self.cell.shapes(self.l_layer).insert(box1) | ||
|
|
||
| #add the left bus pin | ||
| xp1 = -0.05/self.layout.dbu | ||
| xp2 = 0.05/self.layout.dbu | ||
| yp1 = ya+2/dbu+w/2 | ||
| p1 = [Point(xa+xp2,yp1),Point(xa+xp1,yp1)] | ||
| p1c = Point(xa,yp1) | ||
| self.set_p1=p1c | ||
| self.p1=p1c | ||
| pin=Path(p1,w) | ||
| t = Trans(Trans.R0,xa,yp1) | ||
| self.cell.shapes(self.p_layer).insert(pin) | ||
| text=Text("pin1",t) | ||
| self.cell.shapes(self.p_layer).insert(text) | ||
|
|
||
| #add the right bus pin | ||
| p2 = [Point(xb+xp1,yp1),Point(xb+xp2,yp1)] | ||
| p2c = Point(xb,yp1) | ||
| self.set_p2=p2c | ||
| self.p2=p2c | ||
| pin=Path(p2,w) | ||
| t = Trans(Trans.R180,xb,yp1) | ||
| self.cell.shapes(self.p_layer).insert(pin) | ||
| text=Text("pin2",t) | ||
| self.cell.shapes(self.p_layer).insert(text) | ||
|
|
||
| #insert drop port | ||
| if self.d == True: | ||
| box2 = pya.Region() | ||
| xa = -b/2 | ||
| xb = b/2 | ||
| ya = r+w/2+g | ||
| yb = r+w/2+g+w | ||
| box2.insert(pya.Box(xa,ya,xb,yb)) | ||
| self.cell.shapes(self.l_layer).insert(box2) | ||
|
|
||
| box2n = pya.Region() | ||
| xa = -b/2 | ||
| xb = b/2 | ||
| ya = r+w/2+g-2/dbu | ||
| yb = r+w/2+g+w+2/dbu | ||
| box2n.insert(pya.Box(xa,ya,xb,yb)) | ||
| self.cell.shapes(LayerCladN).insert(box2n) | ||
|
|
||
| #add the left drop pin | ||
| xp1 = -0.05/self.layout.dbu | ||
| xp2 = 0.05/self.layout.dbu | ||
| yp1 = ya+w/2+2/dbu | ||
| p1 = [Point(xa+xp2,yp1),Point(xa+xp1,yp1)] | ||
| p1c = Point(xa,yp1) | ||
| self.set_p1=p1c | ||
| self.p1=p1c | ||
| pin=Path(p1,w) | ||
| t = Trans(Trans.R0,xa,yp1) | ||
| self.cell.shapes(self.p_layer).insert(pin) | ||
| text=Text("pin3",t) | ||
| self.cell.shapes(self.p_layer).insert(text) | ||
|
|
||
| #add the right drop pin | ||
| p2 = [Point(xb+xp1,yp1),Point(xb+xp2,yp1)] | ||
| p2c = Point(xb,yp1) | ||
| self.set_p2=p2c | ||
| self.p2=p2c | ||
| pin=Path(p2,w) | ||
| t = Trans(Trans.R180,xb,yp1) | ||
| self.cell.shapes(self.p_layer).insert(pin) | ||
| text=Text("pin4",t) | ||
| self.cell.shapes(self.p_layer).insert(text) |