control.py 文件源码

def get_stack_parent(node):
    """Get the parent of the transform stack belonging to the given node.

    :param node: Node to query.
    :return: The parent node or None if there is no parent.
    """
    previous_parent = cmds.listRelatives(node, parent=True, path=True)
    if not previous_parent:
        return None
    previous_parent = previous_parent[0]
    while previous_parent and STACK_ATTRIBUTE in (cmds.listAttr(previous_parent, ud=True) or []):
        parent = cmds.listRelatives(previous_parent, parent=True, path=True)
        if parent:
            parent = parent[0]
        previous_parent = parent
    return previous_parent