HalfEdge.face_attribute

HalfEdge.face_attribute(key, name, value=None)[source]

Get or set an attribute of a face.

Parameters:
keyint

The face identifier.

namestr

The name of the attribute.

valueobject, optional

The value of the attribute.

Returns:
object | None

The value of the attribute, or None when the function is used as a “setter”.

Raises:
KeyError

If the face does not exist.