def _boundaries_to_polygons(boundaries, ocs, elevation):
paths = (Path.from_hatch_boundary_path(boundary, ocs, elevation)
for boundary in boundaries)
for polygon in nesting.fast_bbox_detection(paths):
exterior = polygon[0]
# only take exterior path of level 1 holes, nested holes are ignored
yield exterior, [hole[0] for hole in polygon[1:]]
def _hatch_primitives(
hatch: 'Hatch',
max_flattening_distance=None) -> Iterable[AbstractPrimitive]:
""" Yield all HATCH boundary paths as separated Path() objects. """
ocs = hatch.ocs()
elevation = hatch.dxf.elevation.z
for boundary in hatch.paths:
yield PathPrimitive(
Path.from_hatch_boundary_path(boundary, ocs, elevation), hatch,
max_flattening_distance)
def boundary_to_vertices(boundary) -> List[Vector]:
path = Path.from_hatch_boundary_path(boundary, ocs, elevation)
return path_to_vertices(path)
def to_path(p):
path = Path.from_hatch_boundary_path(p, ocs, elevation)
path.close()
return path