[Gmsh] Question about gmsh

Jeremy Theler jeremy at seamplex.com
Wed Nov 2 12:58:43 CET 2016

If the data is given node-based, this can be done more or less easily
with awk. If the data is cell-centered (as it seems to be the case from
your description) probably a more complex solution will be needed.

Can you give us an example .msh file you want to convert to plain ASCII


On Fri, 2016-10-21 at 19:09 -0700, Mayank Jog wrote:
> Hello,
> I have been using "simnibs" software which uses gmsh to calculate
> electric fields over a 3D mesh/geometry (human head). 
> It outputs a final .msh file, that contains the electric field
> information, and can be viewed using gmsh. 
> My issue is, I want to convert this file to a list where each line = 
> [coord location, electric field value ] How do I go about doing it? 
> The ultimate goal is to regrid this data onto a regular cartesian grid
> to do some funky postprocessing (fourier transforms, followed by funky
> stuff). I tried saving the .msh file as a .txt ** , and then reading
> it line by line.....I was thinking of replacing each triangular
> element with its centroid. However, I don't know how to proceed with
> other elements....please help me out
> Thank you!
> Mayank
> ** "Post processing Generic txt" option in "save as" in gmsh
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