[SailorLiu]

Hi,

I am just wondering if paraview is able to colour different mesh regions in a decomposed case. For example, the mesh region in processor0 is red and that in processor1 is blue, etc. Just like this image in OpenFOAM website introducing ami using a propeller:



It seems very cool

[SailorLiu]

I have found a way myself.

1. Create a *.foam file inside every processor folder, e.g., processor0.foam in processor0 and processor1.foam in processor1 etc.
2. Open paraview and load each foam file into it.
3. Now you can colour every piece of the decomposed mesh using the coloring feature.

Hope someone likes it.

[redbullah]

hello,
i am also trying to do the same thing.
i can load a *.foam file in paraview in decomposed state. is there any way of coloring each processor's block differently?
if not, is there an easy way of loading each processor*/*.foam file at once? like a script or something?
thanks

[simrego]

Hi!


Try to use "decomposePar -cellDist"
This will write the cell distribution as a labelList. So if you open the reconstructed mesh (NOT THE DECOMPOSED!!), there will be a cellDist field which will indicate the proc number for every cell.

[raumpolizei]

Hey there,
I had the same issue so I wrote a small utility that can be run in parallel on a decomposed case. It writes the procID as new field in the processor/time directories. The field can be reconstructed and visualized in paraview. Small changes may be needed as I am using OFv1612.
Cheers
RP

[louisgag]

Thanks for sharing. Simple and useful. I got it running as is on OF-6-dev.
-Louis


PS: I've made a few changes to compile on v1812, did not dig into the explanations for them but it compiles and runs properly, see attached patch files.