[surface handling] edge mesh

zizou1 · May 16, 2018, 11:17

Hello,
how can I obtain an object.eMesh file from a stl object?
Thank you

simrego · May 17, 2018, 05:15

Hi!

Using the surfaceFeatureExtract utility. In the tutorials/mesh/snappyHexMesh find a tutorial which contains a surfaceFeatureExtractDict in its system directory. Just copy it into your system folder, and rewrite the file names in it. It will generate the .eMesh files into your triSurface folder.

Here you can find one. rewrite the motorBike.obj, to yourFile.stl with the includedAngle you can play a bit.
https://github.com/OpenFOAM/OpenFOAM...ureExtractDict

OR, you can use paraView. Using the feature edges filter on your stl file, and then you can export it. I'm not sure if paraView writes .eMesh file, but i think it can export .obj which is also good for you.

zizou1 · May 17, 2018, 07:58

Dear simrego,
i think i'll manage with a surfaceFeatureExtractDict, anyway thank you really much!

simrego · May 17, 2018, 08:05

You're welcome!

If you have multiple STLs, just write them in the dict like this:

"Header of the dict file"
STL1.stl
{
"lot of stuff"
}
STL2.stl
{
"the same lot of stuff"
}
etc...

May 16, 2018, 11:17	edge mesh	#1
zizou1 New Member Join Date: Mar 2018 Posts: 16 Rep Power: 8	Hello, how can I obtain an object.eMesh file from a stl object? Thank you

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May 17, 2018, 05:15		#2
simrego Senior Member anonymous Join Date: Jan 2016 Posts: 416 Rep Power: 14	Hi! Using the surfaceFeatureExtract utility. In the tutorials/mesh/snappyHexMesh find a tutorial which contains a surfaceFeatureExtractDict in its system directory. Just copy it into your system folder, and rewrite the file names in it. It will generate the .eMesh files into your triSurface folder. Here you can find one. rewrite the motorBike.obj, to yourFile.stl with the includedAngle you can play a bit. https://github.com/OpenFOAM/OpenFOAM...ureExtractDict OR, you can use paraView. Using the feature edges filter on your stl file, and then you can export it. I'm not sure if paraView writes .eMesh file, but i think it can export .obj which is also good for you.

May 17, 2018, 07:58		#3
zizou1 New Member Join Date: Mar 2018 Posts: 16 Rep Power: 8	Dear simrego, i think i'll manage with a surfaceFeatureExtractDict, anyway thank you really much!

May 17, 2018, 08:05		#4
simrego Senior Member anonymous Join Date: Jan 2016 Posts: 416 Rep Power: 14	You're welcome! If you have multiple STLs, just write them in the dict like this: "Header of the dict file" STL1.stl { "lot of stuff" } STL2.stl { "the same lot of stuff" } etc...