def __init__(self, shape):
if not shape.IsNull():
if not shape.ShapeType() == Shape.COMPSOLID:
raise TypeError('Shape is not a TopoDS_CompSolid.')
if not isinstance(shape, TopoDS_CompSolid):
shape = TopoDS.CompSolid_(shape)
super(CompSolid, self).__init__(shape)
def to_compsolid(cls, entity):
"""
Convert an entity to a compsolid.
:param entity: The entity.
:return: A compsolid.
:rtype: OCCT.TopoDS.TopoDS_CompSolid
:raise TypeError: If entity cannot be converted to a compsolid.
"""
if isinstance(entity, TopoDS_CompSolid):
return entity
if cls.is_shape(entity) and entity.ShapeType() == TopAbs_COMPSOLID:
return TopoDS.CompSolid_(entity)
raise TypeError('Failed to convert entity to a compsolid.')
def to_shape(cls, entity):
"""
Convert the entity to a shape. This method tries to convert the
entity to its most specific shape type.
:param entity: The entity.
:return: A shape.
:rtype: OCCT.TopoDS.TopoDS_Shape
:raise TypeError: If entity cannot be converted to a shape.
"""
if entity is None:
return None
# Shapes
if isinstance(entity, TopoDS_Shape):
if entity.IsNull():
raise TypeError('Cannot convert null shape.')
elif entity.ShapeType() == TopAbs_VERTEX:
return TopoDS.Vertex_(entity)
elif entity.ShapeType() == TopAbs_EDGE:
return TopoDS.Edge_(entity)
elif entity.ShapeType() == TopAbs_WIRE:
return TopoDS.Wire_(entity)
elif entity.ShapeType() == TopAbs_FACE:
return TopoDS.Face_(entity)
elif entity.ShapeType() == TopAbs_SHELL:
return TopoDS.Shell_(entity)
elif entity.ShapeType() == TopAbs_SOLID:
return TopoDS.Solid_(entity)
elif entity.ShapeType() == TopAbs_COMPSOLID:
return TopoDS.CompSolid_(entity)
elif entity.ShapeType() == TopAbs_COMPOUND:
return TopoDS.Compound_(entity)
else:
raise TypeError('Failed to convert entity to a shape.')
raise TypeError('Failed to convert entity to a shape.')