Overview

This class uses the OrthogonalPlanesSource from #6366 to create a new assembly class.

It inherits from XYZAssembly and is similar to the AxesAssembly class with the following main differences:

1. AxesAssembly uses AxesGeometrySource for its geometry, whereas PlanesAssembly uses OrthogonalPlanesSource
2. AxesAssembly uses the Label class for its labels, whereas PlanesAssembly uses a customized vtkAxisActor

Here's a preview of this feature using similar a similar example to the AnatomicalOrientation vtk example. Unlike that example, which uses vtkVectorText for the plane labels which remain static and will appear "backwards" if viewed from behind the plane, the labels for this new class instead follow the camera.

import pyvista as pv
from pyvista import examples
human = examples.download_human()
labels = 'Transverse', 'Sagittal', 'Coronal'
planes_assembly = pv.PlanesAssembly(bounds=human.bounds, labels=labels, label_size=25)
plot = pv.Plotter() 
plot.add_mesh(human, color='yellow')
plot.add_actor(planes_assembly) 
planes_assembly.camera = plot.camera 
plot.show()