HalfEdge.vertices_attribute

HalfEdge.vertices_attribute(name, value=None, keys=None)[source]

Get or set an attribute of multiple vertices.

Parameters

  • name (str) – The name of the attribute.

  • value (obj, optional) – The value of the attribute. Default is None.

  • keys (list of int, optional) – A list of vertex identifiers.

Returns

list or None – The value of the attribute for each vertex, or None if the function is used as a “setter”.

Raises

KeyError – If any of the vertices does not exist.