121 lines
2.8 KiB
Python
121 lines
2.8 KiB
Python
from collections.abc import Sequence
|
|
|
|
import numpy
|
|
from numpy import pi
|
|
|
|
from masque import (
|
|
layer_t, Pattern, Label, Port,
|
|
Circle, Arc, Polygon,
|
|
)
|
|
import masque.file.gdsii
|
|
|
|
|
|
# Note that masque units are arbitrary, and are only given
|
|
# physical significance when writing to a file.
|
|
GDS_OPTS = dict(
|
|
meters_per_unit = 1e-9, # GDS database unit, 1 nanometer
|
|
logical_units_per_unit = 1e-3, # GDS display unit, 1 micron
|
|
)
|
|
|
|
|
|
def hole(
|
|
radius: float,
|
|
layer: layer_t = (1, 0),
|
|
) -> Pattern:
|
|
"""
|
|
Generate a pattern containing a single circular hole.
|
|
|
|
Args:
|
|
radius: Circle radius.
|
|
layer: Layer to draw the circle on.
|
|
|
|
Returns:
|
|
Pattern containing a circle.
|
|
"""
|
|
pat = Pattern()
|
|
pat.shapes[layer].append(
|
|
Circle(radius=radius, offset=(0, 0))
|
|
)
|
|
return pat
|
|
|
|
|
|
def triangle(
|
|
radius: float,
|
|
layer: layer_t = (1, 0),
|
|
) -> Pattern:
|
|
"""
|
|
Generate a pattern containing a single triangular hole.
|
|
|
|
Args:
|
|
radius: Radius of circumscribed circle.
|
|
layer: Layer to draw the circle on.
|
|
|
|
Returns:
|
|
Pattern containing a triangle
|
|
"""
|
|
vertices = numpy.array([
|
|
(numpy.cos( pi / 2), numpy.sin( pi / 2)),
|
|
(numpy.cos(pi + pi / 6), numpy.sin(pi + pi / 6)),
|
|
(numpy.cos( - pi / 6), numpy.sin( - pi / 6)),
|
|
]) * radius
|
|
|
|
pat = Pattern()
|
|
pat.shapes[layer].extend([
|
|
Polygon(offset=(0, 0), vertices=vertices),
|
|
])
|
|
return pat
|
|
|
|
|
|
def smile(
|
|
radius: float,
|
|
layer: layer_t = (1, 0),
|
|
secondary_layer: layer_t = (1, 2)
|
|
) -> Pattern:
|
|
"""
|
|
Generate a pattern containing a single smiley face.
|
|
|
|
Args:
|
|
radius: Boundary circle radius.
|
|
layer: Layer to draw the outer circle on.
|
|
secondary_layer: Layer to draw eyes and smile on.
|
|
|
|
Returns:
|
|
Pattern containing a smiley face
|
|
"""
|
|
# Make an empty pattern
|
|
pat = Pattern()
|
|
|
|
# Add all the shapes we want
|
|
pat.shapes[layer] += [
|
|
Circle(radius=radius, offset=(0, 0)), # Outer circle
|
|
]
|
|
|
|
pat.shapes[secondary_layer] += [
|
|
Circle(radius=radius / 10, offset=(radius / 3, radius / 3)),
|
|
Circle(radius=radius / 10, offset=(-radius / 3, radius / 3)),
|
|
Arc(
|
|
radii=(radius * 2 / 3, radius * 2 / 3), # Underlying ellipse radii
|
|
angles=(7 / 6 * pi, 11 / 6 * pi), # Angles limiting the arc
|
|
width=radius / 10,
|
|
offset=(0, 0),
|
|
),
|
|
]
|
|
|
|
return pat
|
|
|
|
|
|
def main() -> None:
|
|
lib = {}
|
|
|
|
lib['hole'] = hole(1000)
|
|
lib['smile'] = smile(1000)
|
|
lib['triangle'] = triangle(1000)
|
|
|
|
masque.file.gdsii.writefile(lib, 'basic_shapes.gds', **GDS_OPTS)
|
|
|
|
lib['triangle'].visualize()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|