Creation of tesslation with expnormal distribution

[J-AKAZ]

Hello Romain,
I try to create a simple microstructure with an expnormal distribution of diameq but i have an abondan...

$ neper -T -n 10 -morpho "voronoi,diameq:expnormal(0.1,0.01)" -o 1

> 
> ========================    N   e   p   e   r    =======================
> 
> Info   : A software package for polycrystal generation and meshing.
> 
> Info   : Version 4.1.2
> 
> Info   : Built with: gsl|muparser|opengjk|openmp|nlopt
> 
> Info   : Running on 12 threads.
> 
> Info   : <https://neper.info>
> 
> Info   : Copyright (C) 2003-2020, and GNU GPL'd, by Romain Quey.
> 
> Info   : No initialization file found (`/home/g20281/.neperrc').
> 
> Info   : ---------------------------------------------------------------
> 
> Info   : MODULE  -T loaded with arguments:
> 
> Info   : [ini file] (none)
> 
> Info   : [com line] -n 10 -morpho voronoi,diameq:expnormal(0.1,0.01) -o
> 
>          1
> 
> Info   : ---------------------------------------------------------------
> 
> Info   : Reading input data...
> 
> Info   : Creating domain...
> 
> Info   : Creating tessellation...
> 
> Info   :   - Setting seeds... 100%
> 
> Info   :   - Generating crystal orientations...
> 
> Info   :   - Running tessellation...
> 
> Info   :     > Initial solution: f   =2.728321254
> 
> Info   :     > Iteration    459: fmin=0.048582005 f=0.050486936
Abandon

Do you have any idea about this problem?
Thanks in advance.

[rquey]

I think the expnormal distribution is just not appropriate as a diameq distribution. It is there, but I would recommend not to use it for this...

[J-AKAZ]

Thank you for your reply... Actually, the EBSD result give the following histogram of the diameq :

I think the most equivalent distibution is an expnormal one ?
Thank you,

[rquey]

Comment 1: a 2D grain-size distribution is not the same as a 3D grain-size distribution of the same material.
Comment 2: There are really no values in the range 0-1? This seems unlikely.