def align_TE_on_via():
cell = dl.Device("Align TE on VIA")
circle = pg.circle(radius=50, layer=pt.LayoutDefault.layerVias)
cross = pg.cross(width=30, length=250, layer=pt.LayoutDefault.layerVias)
g = Group([circle, cross])
g.align(alignment='x')
g.align(alignment='y')
circle.add(cross)
viapattern = pg.union(circle, 'A+B', layer=pt.LayoutDefault.layerVias)
TEpattern = pg.union(circle, 'A+B',
layer=pt.LayoutDefault.layerTop).copy('tmp',
scale=0.8)
cell.add(viapattern)
cell.add(TEpattern)
cell.align(alignment='x')
cell.align(alignment='y')
cell.flatten()
return cell
def draw(self):
if self.shape == 'square':
cell=pg.rectangle(size=(self.size,self.size),\
layer=self.layer)
elif self.shape == 'circle':
cell=pg.circle(radius=self.size/2,\
layer=self.layer)
else:
raise ValueError("Via shape can be \'square\' or \'circle\'")
cell.move(origin=(0,0),\
destination=self.origin.coord)
cell.add_port(Port(name='conn',\
midpoint=cell.center,\
width=cell.xmax-cell.xmin,\
orientation=90))
return cell
C4 = make_device(complicated_waveguide, config=cwg_parameters, height=h)
c4 = D.add_ref(C4)
c4.ymin = D.ymax + 10
qp(D)
#==============================================================================
# Keeping track of geometry using the "alias" functionality
#==============================================================================
# It can be useful to keep track of our DeviceReferences without
# needing to assign the reference to a variable. We can do this by specifying
# an 'alias' for the added DeviceReference.
# For instance, if we wanted to keep track of a circle references twice in D,
# we might normally assign each reference to a separate variable:
D = Device()
C = pg.circle()
c1 = D.add_ref(C) # Add first reference
c2 = D.add_ref(C) # Add second reference
c2.x += 15 # Move the second circle over by 15
qp(c2)
qp(D)
# But rather than cluttering up the list of variables with these refernces,
# we can instead create 'aliases' to each reference, and call them directly
# out of D like you would with a Python dictionary. For example:
D = Device()
C = pg.circle()
D.add_ref(C, alias='circle1') # Add first reference
D['circle2'] = D.add_ref(C) # Add second reference in a different style
D['circle3'] = D << C # Add third reference in yet another way!
D = pg.cross(length = 10, width = 0.5, layer = 0) qp(D) # quickplot the geometry create_image(D, 'cross') # example-ellipse import phidl.geometry as pg from phidl import quickplot as qp D = pg.ellipse(radii = (10,5), angle_resolution = 2.5, layer = 0) create_image(D, 'ellipse') # example-circle import phidl.geometry as pg from phidl import quickplot as qp D = pg.circle(radius = 10, angle_resolution = 2.5, layer = 0) qp(D) # quickplot the geometry create_image(D, 'circle') # example-ring import phidl.geometry as pg from phidl import quickplot as qp D = pg.ring(radius = 5, width = 0.5, angle_resolution = 2.5, layer = 0) qp(D) # quickplot the geometry create_image(D, 'ring') # example-arc import phidl.geometry as pg from phidl import quickplot as qp
def test_circle():
D = pg.circle(radius=10, angle_resolution=2.5, layer=0)
h = D.hash_geometry(precision=1e-4)
assert (h == '15a748245d7bdfd4987f081e1494b41096e9c95a')
def some_device(width=10, height=20):
D = Device('somedevice')
r1 = D << pg.rectangle((width, height), layer=some_layer)
r2 = D << pg.circle(radius=width, layer=some_layer)
r2.movex(30)
return D
