From EBSD to Mesh to SIM

[bibiboom89]

Hi,

I'm trying to perform an FEM simulation from an EBSD map.
Using MATLAB and MTEX, I was able to generate a Raster Tessellation file (cf. attachment).
The tesr file only contains the dimension grid and the cell orientations.
All cells share the same phase.
Files.zip

Here is the image produced with the following command:
neper -V EBSD_example.tesr -datavoxcol ori -print img_example

From that point, I was wondering how I could perform a simple simulation (as presented in https://fepx.info/doc/tutorials/simple_simulation.html#simple-simulation). Does FEPX supports structured mesh with hexagonal element ? And how could I get a structured mesh from my tesr file?

I thank you a lot in advance,
Regards,
Bibi