def _demo():
"""plot curvature of bends"""
from matplotlib import pyplot as plt
c = crossing45(port_spacing=20.0, dx=15)
c2 = compensation_path(crossing45=c)
print(c.info["min_bend_radius"])
print(c2.info["min_bend_radius"])
component = Component(name="top_lvl")
component.add(c.ref(port_id="o1"))
component.add(c2.ref(port_id="o1", position=(0, 10)))
bend_info1 = c.info["components"]["bezier_bend"].info
bend_info2 = c2.info["components"]["sbend"].info
DL = bend_info1["length"]
L2 = bend_info1["length"]
plt.plot(bend_info1["t"][1:-1] * DL, abs(bend_info1["curvature"]))
plt.plot(bend_info2["t"][1:-1] * L2, abs(bend_info2["curvature"]))
plt.xlabel("bend length (um)")
plt.ylabel("curvature (um^-1)")
component.show()
plt.show()
def _sample_route_sides() -> Component:
c = Component()
_dummy_t = _sample_route_side()
sides = ["north", "south", "east", "west"]
positions = [(0, 0), (400, 0), (400, 400), (0, 400)]
for pos, side in zip(positions, sides):
dummy_ref = _dummy_t.ref(position=pos)
c.add(dummy_ref)
routes, ports = route_ports_to_side(dummy_ref, side, layer=(2, 0))
for route in routes:
c.add(route.references)
for i, p in enumerate(ports):
c.add_port(name=f"{side[0]}{i}", port=p)
return c
if __name__ == "__main__":
c = Component()
_dummy_t = _sample_route_side()
sides = ["north", "south", "east", "west"]
positions = [(0, 0), (400, 0), (400, 400), (0, 400)]
for pos, side in zip(positions, sides):
dummy_ref = _dummy_t.ref(position=pos)
c.add(dummy_ref)
routes, ports = route_ports_to_side(dummy_ref, side, layer=(2, 0))
for route in routes:
c.add(route.references)
for i, p in enumerate(ports):
c.add_port(name=f"{side[0]}{i}", port=p)
c.show()
