CTH reader: Optionally calculate "derived variables" density and material densities.
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
In spcth files, derived variables are not saved in the file because they can (usually) be calculated from the other variables that are written to the file. However, the spcth reader does not do this. The feature request is to optionally compute several derived variables if the variables they depend on are in the file and if the user requests them (through the variable checkboxes on the preperties panel.) Formulas given in Additional Information.
The motivation for this request is that the Prism plugin is much more effective when the material densities are available, so this request is focused on just these quantities. A more complete solution would be to optionally compute all the derived variables, which would be straightforward and not too much more work after computing the material densities.