def fill_holes(obj, dx=10e3, dy=8e3, width=5e3, height=5e3, d=0):
if (obj.is_cell_inst()):
return None
poly = obj.shape.polygon
bbox = poly.bbox()
poly_reg = Region(poly)
t_reg = Region()
y = bbox.p1.y + height
while (y < bbox.p2.y - height):
x = bbox.p1.x + width
while (x < bbox.p2.x - width):
box = pya.Box().from_dbox(
pya.DBox(DPoint(x, y), DPoint(x + width, y + height)))
x += dx
t_reg.clear()
t_reg.insert(box)
qwe = t_reg.select_inside(poly_reg)
if (qwe.is_empty()):
continue
edge_pairs = qwe.inside_check(poly_reg, d)
if (edge_pairs.is_empty()):
poly.insert_hole(box)
y += dy
obj.shape.polygon = poly
def fill_poly(poly):
bbox = poly.bbox()
poly_reg = Region(poly)
t_reg = Region()
# Draw boundary around holes in the polygon
for hole_i in range(0, poly.holes()):
points = [p for p in poly.each_point_hole(hole_i)]
points.append(points[0])
boundary = Path(points, 2 * d)
poly_reg -= Region(boundary)
# Draw boundary around the outer edge of the polygon
points = [p for p in poly.each_point_hull()]
points.append(points[0])
boundary = Path(points, 2 * d)
poly_reg -= Region(boundary)
# Fill the boundary box with holes
y = bbox.p1.y + height
while y < bbox.p2.y - height:
x = bbox.p1.x + width
while x < bbox.p2.x - width:
box = pya.Box().from_dbox(
pya.DBox(DPoint(x, y), DPoint(x + width, y + height)))
x += dx
t_reg.insert(box)
y += dy
# Select only inner holes
holes_inside = t_reg.select_inside(poly_reg)
for box in holes_inside.each():
poly.insert_hole(list(box.each_point_hull()))
return poly
def fill_holes(cell,
layer,
obj,
dx=15e3,
dy=15e3,
width=10e3,
height=10e3,
d=50e3):
""" @brief: Fills an object with a grid of holes
Warning: don't use this method for the same region twice
@params: cell
layer
obj
dx : int
period of a grid in horizonatal direction
dy : int
period of a grid in vertical direction
width : int
width of a hole
height : int
height of a hole
d : int
padding
"""
if (obj.is_cell_inst()):
return None
poly = obj.shape.polygon
print(poly.holes())
bbox = poly.bbox()
poly_reg = Region(poly)
t_reg = Region()
# Fill the boundary box with holes
y = bbox.p1.y + height
while y < bbox.p2.y - height:
x = bbox.p1.x + width
while x < bbox.p2.x - width:
box = pya.Box().from_dbox(
pya.DBox(DPoint(x, y), DPoint(x + width, y + height)))
x += dx
t_reg.insert(box)
y += dy
# Draw boundary around holes in the polygon
for hole_i in range(0, poly.holes()):
points = [p for p in poly.each_point_hole(hole_i)]
points.append(points[0])
boundary = Path(points, d)
poly_reg -= Region(boundary)
# Draw boundary around the outer edge of the polygon
points = [p for p in poly.each_point_hull()]
points.append(points[0])
boundary = Path(points, d)
poly_reg -= Region(boundary)
# Select only inner holes
qwe = t_reg.select_inside(poly_reg)
# Subtract holes from the layer
r_cell = Region(cell.begin_shapes_rec(layer))
temp_i = cell.layout().layer(pya.LayerInfo(PROGRAM.LAYER1_NUM, 0))
cell.shapes(temp_i).insert(r_cell - qwe)
cell.layout().clear_layer(layer)
cell.layout().move_layer(temp_i, layer)
cell.layout().delete_layer(temp_i)
