def draw_composite_entity(self, entity: DXFGraphic,
properties: Properties) -> None:
def set_opaque(entities: Iterable[DXFGraphic]):
for child in entities:
# todo: defaults to 1.0 (fully transparent)???
child.transparency = 0.0
yield child
dxftype = entity.dxftype()
if dxftype == 'INSERT':
entity = cast(Insert, entity)
self.ctx.push_state(properties)
# draw_entities() includes the visibility check:
self.draw_entities(entity.attribs)
self.draw_entities(entity.virtual_entities())
self.ctx.pop_state()
# DIMENSION, ARC_DIMENSION, LARGE_RADIAL_DIMENSION, LEADER
# todo: ACAD_TABLE, MLINE, MLEADER
elif hasattr(entity, 'virtual_entities'):
# draw_entities() includes the visibility check:
self.draw_entities(set_opaque(entity.virtual_entities()))
else:
raise TypeError(dxftype)
def draw_composite_entity(self, entity: DXFGraphic,
properties: Properties) -> None:
def set_opaque(entities: Iterable[DXFGraphic]):
for child in entities:
# todo: defaults to 1.0 (fully transparent)???
child.transparency = 0.0
yield child
def draw_insert(insert: Insert):
self.draw_entities(insert.attribs)
# draw_entities() includes the visibility check:
self.draw_entities(
insert.virtual_entities(
skipped_entity_callback=self.skip_entity))
dxftype = entity.dxftype()
if dxftype == 'INSERT':
entity = cast(Insert, entity)
self.ctx.push_state(properties)
if entity.mcount > 1:
for virtual_insert in entity.multi_insert():
draw_insert(virtual_insert)
else:
draw_insert(entity)
self.ctx.pop_state()
elif hasattr(entity, 'virtual_entities'):
# draw_entities() includes the visibility check:
self.draw_entities(set_opaque(entity.virtual_entities()))
else:
raise TypeError(dxftype)
def draw_composite_entity(self, entity: DXFGraphic) -> None:
dxftype = entity.dxftype()
if dxftype == 'INSERT':
entity = cast(Insert, entity)
self.ctx.push_state(self._resolve_properties(entity))
self.parent_stack.append(entity)
# visibility check is required:
self.draw_entities(entity.attribs)
try:
children = list(entity.virtual_entities())
except Exception as e:
print(
f'Exception {type(e)}({e}) failed to get children of insert entity: {e}'
)
return
# visibility check is required:
self.draw_entities(children)
self.parent_stack.pop()
self.ctx.pop_state()
# DIMENSION, ARC_DIMENSION, LARGE_RADIAL_DIMENSION and ACAD_TABLE
# All these entities have an associated anonymous geometry block.
elif hasattr(entity, 'virtual_entities'):
children = []
try:
for child in entity.virtual_entities():
child.transparency = 0.0 # todo: defaults to 1.0 (fully transparent)???
children.append(child)
except Exception as e:
print(
f'Exception {type(e)}({e}) failed to get children of entity: {str(entity)}'
)
return
self.parent_stack.append(entity)
# visibility check is required:
self.draw_entities(children)
self.parent_stack.pop()
else:
raise TypeError(dxftype)
def draw_polyline_entity(self, entity: DXFGraphic):
dxftype = entity.dxftype()
if dxftype == 'POLYLINE':
e = cast(Polyface, entity)
if e.is_polygon_mesh or e.is_poly_face_mesh:
self.draw_mesh_builder_entity(
MeshBuilder.from_polyface(e),
self._resolve_properties(entity),
)
return
entity = cast(Union[LWPolyline, Polyline], entity)
if not entity.has_arc:
properties = self._resolve_properties(entity)
if dxftype == 'LWPOLYLINE':
self.out.draw_line_string(Vector.generate(
entity.vertices_in_wcs()),
close=entity.closed,
properties=properties)
else: # POLYLINE
if entity.is_2d_polyline:
ocs = entity.ocs()
elevation = Vector(entity.dxf.elevation).z
vertices = ocs.points_to_wcs(
Vector(p[0], p[1], elevation) for p in entity.points())
else:
vertices = Vector.generate(entity.points())
self.out.draw_line_string(vertices,
close=entity.is_closed,
properties=properties)
return
self.parent_stack.append(entity)
self.out.set_current_entity(entity, tuple(self.parent_stack))
# todo: end points of virtual entities are not in correct order
# can't use self.out.start_path()
for child in entity.virtual_entities():
# all child entities have the same properties as the parent,
# no visibility check required:
self.draw_entity(child)
# self.out.end_path()
self.parent_stack.pop()
self.out.set_current_entity(None)
