### Description

A scanned image clipped with a scalar value of 1/2 its maximum intensity produces a mixture of quadrilaterals and triangles.

!!! info
    See [Figure 9-10](../../../VTKBook/09Chapter9/#Figure%209-10) in [Chapter 9](../../../VTKBook/09Chapter9) The [VTK Textbook](../../../VTKBook/01Chapter1).
