idaholab/moose — pull request #4021 by jwpeterson (2014-10-09 20:18:09+00:00)
Title: Image function fixup

This branches fixes a couple of small and large issues with the `ImageFunction` class. Most notably, the `flip_dual` and `flip_quad` tests now work with VTK-6. The CI won't really test this, but I have confirmed with @aeslaughter that it still works on VTK-5 as well.

Refs #3544.