Draft: Revamp Gaussian Cube file reader (!10927) · Merge requests · VTK / VTK

This includes the following:

Properly translate units from Bohr to Angstrom
Properly take grid spacing into account
Support the full format specification (not just a subset of it) when parsing cube files
Added support for multiple data sets within a single cube file
Added support for non-orthogonal grid axes (data set is no longer required to be of type vtkImageData)

Open questions/problems:

Can I safely delete the old cube file reader files (v1)? Having the multiple implementations of cube readers around seems redundant and very confusing to end users.
When using this reader implementation within ParaView, the data seems to be loaded correctly. However, things like volumetric rendering of the data just doesn't do anything. I assume this is due to some missing attribute that I have not yet specified correctly. Any help on that front would be appreciated.

Draft: Revamp Gaussian Cube file reader