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Update ebeam_test_bends.lym
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@lukasc-ubc
lukasc-ubc committed May 8, 2024
1 parent 23de106 commit 02c8e64
Showing 1 changed file with 77 additions and 45 deletions.
122 changes: 77 additions & 45 deletions klayout/EBeam/pymacros/pcells_EBeam_Beta/ebeam_test_bends.lym
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Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,19 @@ class ebeam_test_bends(pya.PCellDeclarationHelper):
self.param("override_width", self.TypeDouble, "Override waveguide width", default = 0)
self.param("override_radius", self.TypeDouble, "Override waveguide radius", default = 0)
self.param("override_bezier", self.TypeDouble, "Override waveguide Bezier parameter", default = 0)
self.param("ports_opposite", self.TypeBoolean, "Waveguide ports on opposite sides", default = False)
self.param("bends", self.TypeInt, "Number of bends", default = 10)
self.param("loops", self.TypeInt, "Number of loops", default = 2)
self.minlength = 2*float(self.waveguide_types[0]['radius'])
self.param("length", self.TypeDouble, "Inner length (min 2 x bend radius)", default = self.minlength)
self.param("box", self.TypeShape, "Box", default = pya.DBox(-self.minlength, -self.minlength/2, self.minlength, self.minlength/2))
self.param("length1", self.TypeDouble, "length: for PCell", default = self.minlength, hidden = True)
self.param("flatten", self.TypeBoolean, "Flatten the PCell, for scripting", default = False)

self.param("columns", self.TypeInt, "Number of columns", default = 5)
self.param("rows", self.TypeInt, "Number of double rows", default = 5)
# self.param("tot_bends", self.TypeInt, "Total number of bends", default = 2, readonly=True)
self.param("tot_bends", self.TypeInt, "Total number of bends", default = 2, readonly=True)

def coerce_parameters_impl(self):
# if 'tot_bends1' in dir(self):
# self.tot_bends = self.tot_bends1 # self.columns * self.rows
self.tot_bends = self.columns*2*4 * self.rows + 2

def display_text_impl(self):
# Provide a descriptive text for the cell
return "%s_%s_%s_%s" % (self.cellName, self.loops, self.length, self.waveguide_type.replace(' ','_'))
return "%s_%s_%s_override:%s_%s_%s" % (self.cellName, self.tot_bends, self.waveguide_type.replace(' ','_'),self.override_width, self.override_radius, round(self.override_bezier, 3))

def get_waveguide_parameters(self):
'''
Expand Down Expand Up @@ -137,8 +138,8 @@ class ebeam_test_bends(pya.PCellDeclarationHelper):
print(id(load_Waveguides_by_Tech(self.technology_name)[0] ))
print(self.waveguide_types[0])
print(id(self.waveguide_types[0]))
'''
print(wg_params)
'''


def produce_impl(self):
Expand All @@ -147,46 +148,77 @@ class ebeam_test_bends(pya.PCellDeclarationHelper):
devrec=self.devrec
radius = self.radius

# SBend offset in the middle of the spiral
if 'sbends' in self.waveguide_params:
# Use the Bezier S-Bend (more space efficient)
# if sbends=True in Waveguide.xml
offset = radius - devrec/2
extra = 0
else:
# Use 2 x 90 degree bends
offset = radius
extra = devrec
if 0:
# Spiral

# Ensure the length is sufficient
self.minlength = 2*radius
length0 = max(self.minlength, self.length)
# SBend offset in the middle of the spiral
if 'sbends' in self.waveguide_params:
# Use the Bezier S-Bend (more space efficient)
# if sbends=True in Waveguide.xml
offset = radius - devrec/2
extra = 0
else:
# Use 2 x 90 degree bends
offset = radius
extra = devrec

# min loops
self.loops = max(self.loops, 1)



# spiral points
points = [DPoint(-length0,offset), DPoint(0.0,offset), DPoint(0.0,-offset), DPoint(length0,-offset)]
for i in range(1,self.loops*2,2):
points.insert(0, DPoint(-length0-devrec*(i-1),offset-radius*2-devrec*(i-1)-extra))
points.insert(0, DPoint(length0+devrec*i,offset-radius*2-devrec*(i-1)-extra))
points.insert(0, DPoint(length0+devrec*i,-offset+radius*2+devrec*i+extra))
# Ensure the length is sufficient
self.minlength = 2*radius
length0 = max(self.minlength, self.length)

# min loops
self.loops = max(self.loops, 1)

# spiral points
points = [DPoint(-length0,offset), DPoint(0.0,offset), DPoint(0.0,-offset), DPoint(length0,-offset)]
for i in range(1,self.loops*2,2):
points.insert(0, DPoint(-length0-devrec*(i-1),offset-radius*2-devrec*(i-1)-extra))
points.insert(0, DPoint(length0+devrec*i,offset-radius*2-devrec*(i-1)-extra))
points.insert(0, DPoint(length0+devrec*i,-offset+radius*2+devrec*i+extra))
points.insert(0, DPoint(-length0-devrec*(i+1),-offset+radius*2+devrec*i+extra))
points.append(DPoint(length0+devrec*(i-1),radius*2-offset+devrec*(i-1)+extra))
points.append(DPoint(-length0-devrec*i,radius*2-offset+devrec*(i-1)+extra))
points.append(DPoint(-length0-devrec*i,-radius*2+offset-devrec*i-extra))
points.append(DPoint(length0+devrec*(i+1),-radius*2+offset-devrec*i-extra))
if not self.ports_opposite:
points.append(DPoint(length0+devrec*(i+1),radius*2-offset+devrec*(i+1)+extra))
points.append(DPoint(-length0-devrec*(i+1),radius*2-offset+devrec*(i+1)+extra))
points.pop(0)
points.insert(0, DPoint(-length0-devrec*(i+1),-offset+radius*2+devrec*i+extra))
points.append(DPoint(length0+devrec*(i-1),radius*2-offset+devrec*(i-1)+extra))
points.append(DPoint(-length0-devrec*i,radius*2-offset+devrec*(i-1)+extra))
points.append(DPoint(-length0-devrec*i,-radius*2+offset-devrec*i-extra))
points.append(DPoint(length0+devrec*(i+1),-radius*2+offset-devrec*i-extra))
if not self.ports_opposite:
points.append(DPoint(length0+devrec*(i+1),radius*2-offset+devrec*(i+1)+extra))
points.append(DPoint(-length0-devrec*(i+1),radius*2-offset+devrec*(i+1)+extra))
points.pop(0)
points.insert(0, DPoint(-length0-devrec*(i+1),-offset+radius*2+devrec*i+extra))

else:
# bend test structure
points = [DPoint(0,0)]
for j in range(0,self.rows):
dy = radius*4*j
for i in range(1,self.columns*2+1, 2):
points.append(DPoint(radius*2*(i),dy))
points.append(DPoint(radius*2*(i),radius*2+dy))
points.append(DPoint(radius*2*(i+1),radius*2+dy))
points.append(DPoint(radius*2*(i+1),dy))
points.append(DPoint(radius*2*(i+2),dy))
points.append(DPoint(radius*2*(i+2),radius*2+dy))
for i in range(self.columns*2-1, 0, -2):
points.append(DPoint(radius*2*(i+1),radius*2+dy))
points.append(DPoint(radius*2*(i+1),radius*4+dy))
points.append(DPoint(radius*2*(i),radius*4+dy))
points.append(DPoint(radius*2*(i),radius*2+dy))
points.pop(-1)
points.pop(-1)
# points.append(DPoint(radius*2*(i+2),radius*2*self.rows))
points.append(DPoint(0,radius*4*self.rows))
self.tot_bends1 = len(points)
print('Number of bends: %s' % self.tot_bends)

# Create a path and waveguide
path = DPath(points, 0.5)

'''
# Debuggin, to make sure there are no duplicate vertices
print(path.to_s())
path = path.unique_points()
print(path.to_s())
'''

if 0:
# This inserts a waveguide where the parameters are fixed from Waveguide.XML
# using the Waveguide PCell
Expand Down

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