[nope]

Hello everyone

I've already found a lot of information regarding the creation of regions, cellSets and cellZones. However I haven't found a nice solution for my problem.

In an automated workflow I use mergeMeshes to merge multiple meshes together. The goal is to have a cellZone for each mesh that got merged.
The mergeMeshes utility will merge the meshes and create a region (region0, region1, ...) for each of the merged meshes. The simplest way I've found to convert the regions into cellZones is the following:

splitMeshRegions -makeCellZones -overwrite

This will create a cellZone for each region. The cellZones are named region0, region1, ... which I don't like. Additionally this will create a file "cellToRegion" in the 0 directory which I don't want and need.

A prefered way would be the following:

1. create a cellSet for each region and give the cellSet a specific name
2. use topoSet to convert the cellSets into cellZones with specific names

The second point is no problem, the first point seems to be more tricky. If I run checkMesh, this will be done and the cellSets are named region0, region1, ... but running checkMesh at this point is a waste of time in this workflow. I also took a look at setSet, but couldn't find a command that uses regions.
How can I create cellSets for each existing region?

Thank you in advance, regards
nope

[fly_light]

Hi nope,

maybe the reply is very delayed. But I think you can create stl files for each mesh and then use

searchableSurfaceToCell

to create cellset for each of them. And then employ

setToCellZone

to create cellzone.

Also, I have written a code that can merge multiple meshes simultaneously. I have tested it, and it works very quickly and efficiently even for more than ten thousand meshes. Here is the link. But I didn't put a test case inside, and maybe I will add it later. Anyone who needs it can contact me.

I hope it will be useful for others with the same needs.

best!