post-precessing and output ODF

[Ming-is]

the ' θ' is the angle between each grain’s ’c‘ axis and the sample’s Z axis, the 'ψ' determines the amount of misorientation spread within the region characterized via the half width at half maximum of the distributions. How can I get these data and visualize it through neper to get something similar to the following figure？

I noticed that neper has a new function to output ODF, but I made an error using the following instructions. How can I implement it?

neper -S 4.sim -resmesh odf

error; Failed to find orispace.