Add domain rendering script

[nilsvu]

Shows elements and grid lines. A second high-resolution dataset can be used to draw smooth element outlines. This rendering is a starting point for visualizations of the domain geometry, e.g. for publications.

For example:

Proposed changes

Upgrade instructions

Code review checklist

• The code is documented and the documentation renders correctly. Run
  make doc to generate the documentation locally into BUILD_DIR/docs/html.
  Then open index.html.
• The code follows the stylistic and code quality guidelines listed in the
  code review guide.
• The PR lists upgrade instructions and is labeled bugfix or
  new feature if appropriate.

Further comments

[yoonso0-0]

[yoonso0-0]

It's working really well. Thanks for implementing this.

The above output image is what I get when I fix the clip normal to 0.0, 0.0, 1.0 (Z axis, default) but shifted the clip origin into 10.0, 0.0, 0.0. In principle it should show the same image as below :

Is this a paraview behavior or a bug is somewhere?

[nilsvu]

Should be fixed (see fixup commit). Camera positioning is a bit tricky with ParaView... I'm sure this can be made more robust, but I think this is ok for a start.

[yoonso0-0]

Checked the fixup solved issue. Please squash

[knelli2]

Let me know if you want to do anything about my suggestion. Not necessary though

[knelli2]

This factor of 10 seems a bit arbitrary. I could imagine this not working for a BBH with an outer boundary of like 1000.

[nilsvu]

Actually ParaView ignores this factor, so I kept it at 10 :D It sets the zoom factor automatically to show the entire domain. As I said above, we can surely make the camera handling better here, but I haven't played around with it enough to understand what ParaView actually does with the camera.