Choose one group to mesh

[damulaoshi]

Dear Romain,
First of all, thank you for your open-source software NEPER, it really helps us a lot!

My question is:
Is it possible to mesh only one group in Module-M?
For example, in Module-T, I generate the model as:
neper -T -n from_morpho -morpho "diameq:lognormal(0.1,0.01)+0.5*lognormal(0.01,0.001),1-sphericity:lognormal(0.145,0.03)" -group "diameq>0.03?1:2" -morphooptiini "weight:radeq,coo:packing" -dim 2 -o 2d

We have grains belong to group 1 and group 2. If I want only mesh the grains in group 1, how could I do in Module-M?

Thank you before and wish to hear your response.

Best regards

[rquey]

Use meshface:

 neper -T -n 100 -group "(id<=50)?1:2" -o test -reg 1 -dim 2
 neper -M test.tess -meshface "group==1"
 neper -V test.msh -showelt1d all -dataelt1drad 0.002 -dataelt2dedgerad 0.001 -print img

[damulaoshi]

Thank you so much for your answer! One more question, is it possible to extend for 3D models? In 3D, I cannot use "-meshface" this command, and how could I change the command?
Thank you before

[rquey]

Use -meshpoly.

[damulaoshi]

Thank you! It is what I want!