MultiSlice intersection

I have a multi slice model similar to this example and I’d like to have clear intersection lines showing between the three planes. How can I achieve this?

You can manually draw the lines (e.g. with LineSource) where the intersection occurs. You will have to compute the intersection manually, but that’s just figuring out what where the intersections are in image space, and transforming that into world coordinates.

FYI you can rely on vtkPlane.intersectWithPlane()