def add_keepout(component,
target_layers,
keepout_layers,
margin=2.0) -> Component:
"""Adds keepout after Looking up all polygons in a cell.
You can also use add_padding
Args:
component
target_layers: list of layers to read
keepout_layers: list of layers to add keepout
margin: offset from tareget to keepout_layers
"""
c = Component(f"{component.name}_ko")
c << component
for layer in target_layers:
polygons = component.get_polygons(by_spec=layer)
if polygons:
for ko_layer in keepout_layers:
ko_layer = _parse_layer(ko_layer)
polygon_keepout = [
polygon_grow(polygon, margin) for polygon in polygons
]
c.add_polygon(polygon_keepout, ko_layer)
return c
def add_keepout(c, target_layers, keepout_layers, margin=2.0):
"""
Lookup all polygons in this cell
"""
all_cells = list(c.get_dependencies(True)) + [c]
for _c in all_cells:
for _layer in target_layers:
polys_by_layer = _c.get_polygons(by_spec=True)
layer = _parse_layer(_layer)
for ko_layer in keepout_layers:
ko_layer = _parse_layer(ko_layer)
polys = polys_by_layer[
layer] if layer in polys_by_layer else []
if not polys:
continue
ko_polys_pts = [polygon_grow(poly, margin) for poly in polys]
_c.add_polygon(ko_polys_pts, ko_layer)
def gen_op_blocking(pts, snap_res=0.05, margin=0.3):
return polygon_grow(pts, margin)
def gen_pixels_op_blocking(pts, snap_res=0.05, margin=1.0, min_pixel_size=0.4):
op_block_pts = polygon_grow(pts, margin)
return pixelate(op_block_pts,
min_pixel_size=min_pixel_size,
N=100,
snap_res=snap_res)