Extract tabular data for modeshapes from HAWC2 Visualization HDF5 file (eigenanalysis data)

In the HAWC2 Visualization Tool, it is now possible to see an animation of the eigenmodes derived from the 'system_eigenanalysis' command. It would be useful to also compile and present the modeshape data numerically (for a "snapshot" of the animation, perhaps max displacement?). This could be useful for plotting modeshapes for comparison across models.

The current method to obtain this data (as, e.g., a *.shp file) involves the 'eigen_shapes' & 'write_shapes' commands in the unpublished 'superelement' command block. This has the drawback of redundant calculation, as well as the requirement to explicitly enumerate the desired eigenmodes.

One option could be to include a function in WETB to extract the data from the Visualization HDF5 file and write it into the SHP-file (ASCII) format. There could also be an export button from the Visualization Tool itself.