Voro++ results to ParaView

Submitted by flobot on Wed, 05/02/2012 - 09:50

Dear all,

I'm playing around with voro++ and was wondering if anyone out there managed to write a script to show the voronoi cells in paraview. I know voro comes with POV ray support but I would rather have all the data/postprocessing in one program (=Paraview). I am thinking about extending the voro++ code to have some functions that could be used to write VTK files for paraview but I am still wondering which of the possible Paraview input formats is the best for this purpose.
Any recommendations, code fragments or help on this ?

Thanks.

Forums:

msbentley's picture

msbentley | Thu, 05/03/2012 - 10:01

I was also thinking about this, but haven't implemented anything yet. My plan was to use the Voro++ custom output (http://math.lbl.gov/voro++/doc/custom.html) to dump the vertices to a file, and then to write a python script to produce VTK output.

Previously I used the pyEVTK package (https://bitbucket.org/pauloh/pyevtk) to do something similar and produce force chain output in VTK (https://code.google.com/p/liggghts-force-chains/) which is essentially also a set of straight line segments (vertices).

So I think it shouldn't be so hard, but I haven't actually tried yet...

Cheers, Mark

flobot | Fri, 05/04/2012 - 13:24

Dear Mark, dear all,

ok so I wrote some C++ lines writing voro++ cell information to VTK data format and it works fine It is quick and dirty but it works. I thought of going into voro++'s source code to add something like a "draw_cells_vtk(..)" method. But in the end I build upon the polygons example. Nevertheless the code could be easily incorporated into the library and I might also send it to Chris Rycroft (maybe for a future release).

If anyone is interested I am happy to share. Could please someone give me some suggestions on how to efficiently post the source code here. Its only about 150-200 lines but even with code-tags I cannot post all of it (preview ?).

Cheers,
Flo

ckloss's picture

ckloss | Mon, 05/07/2012 - 09:18

Hi Flo,

good to hear it worked out! If you want to share source code, you can attach it in the forums by starting a new thread.

Cheers, Christoph

psoo | Thu, 08/01/2019 - 19:07

Hello Flobot,

It's been more than 7 years from your post, but I would like to do exactly what you did. Do you still have the code and would be willing to share?

Thanks a lot!

wmfarmer | Wed, 08/14/2019 - 18:42

Hey psoo,

Have figured out how flobot did this? I am stuck in a similar place, and any insight into this problem, even if not solved, would be helpful.

Thanks!