Failed to reconstruct rve model from EBSD data

[Ming-is]

I try to introduce EBSD grain data into neper to establish an appropriate rve model.

The following are the data files I use, the corresponding instructions and error reports:

$ neper -T -n  from_morpho  -morpho  "size:file(sizefile),coo:file(coofile)" -dim 2 -ori "file(orifile,des=euler-bunge)" -oridescriptor "euler-bunge:active"   -domain "square(473 ,354)" -o simulation4

Info   :     [i] Parsing file `sizefile'...
Info   :     [i] Parsed file `sizefile'.
Abandoned (core dumped)

neper.zip

I have EBSD ctf. file. How can I rebuild the rve？

[rquey]

The correct syntax is -morpho "size:file(sizefile),centroid:file(coofile)" and not -morpho "size:file(sizefile),coo:file(coofile)".

You should then make sure that your centroids are consistent with the domain size. The centroid coordinates currently are in [0,57][0,43] while your domain is 473 x 354.

[Ming-is]

This is the screenshot of the EBSD texture file I cut in ATEX software, so how do I set it in neper's "domain" instruction？

[rquey]

I would use micrometers and set the domain size using "-domain "square(18.84,14.16)". The grain centroids should be in micrometers too, and range in [0, 18.84][0, 14.16].

[Ming-is]

The orientation and coordinates of voxels can be obtained from the CTF file of EBSD. If I want to import it into the rve established by neper, what instructions can be used, and what appropriate instructions are available if I want to export the voxel information of rve？ Looking forward to your reply, thank you.

[rquey]

If you want to generate a Neper tessellation from grain properties (e.g . centroids), you have to write them in text files and use the commands discussed above.
If you want to describe your EBSD map as a Neper raster tessellation ("tesr") for further processing, you have to write it as a tesr file. See the documentation for details on the file format.

[Anmol-Bakshi]

@Ming-is what does size.txt represents here, like coofile.txt represents center of each grain co-ordinates; orifile contains orientation of each grain?