maya获得物体的四边面数量

from maya import cmds


def get_quad_count(mesh_name):
	# Check if the given object exists
	if not cmds.objExists(mesh_name):
		print("Error: Object '{}' does not exist.".format(mesh_name))
		return None

	# Check if the object has a child polygon mesh
	shapes = cmds.listRelatives(mesh_name, shapes=True, type='mesh')
	if not shapes:
		print("Error: '{}' does not have a polygon mesh child.".format(mesh_name))
		return None

	# Get the name of the polygon mesh child
	quad_count = 0
	for mesh_node in shapes:
		# Only deal with mesh node
		node_type = cmds.nodeType(mesh_node)
		if node_type != "mesh": 
			continue

		# Get the polygon faces of the mesh
		faces = cmds.polyListComponentConversion(mesh_node, toVertexFace=True)
		cmds.select(faces, replace=True)

		# Convert the selection to quads (4-sided faces)
		quads = cmds.polySelectConstraint(mode=3, type=0x0008, size=4)

		# Get the count of quads
		quad_count += cmds.polyEvaluate(f=True)

		# Clear the selection
		cmds.select(clear=True)

	return quad_count


# Example usage:
if __name__ == '__main__':
	object_name = 'pCube24'
	_quad_count = get_quad_count(object_name)
	if _quad_count is not None:
		print("Quad count of '{}': {}".format(object_name, _quad_count))