I need a VTK format for my mesh

Altair Employee

Mar 13, 2018

Updated Oct 13, 2020 by Altair Forum User

Hi,I am going to work with Fenics to run my problems. Actually, we should have vtk format for my meshes to run Fenics. There is 2 formats for vtk, one is vtp where it is for surface mesh and another format is vtu for volume mesh. I need a code for exporting my mesh to this formats. And for every surface I need a vtp outcome. For example, if I have 10 surfaces, and one volume, I need a code to give me 11 files, 10 files for each surfaces, and 1 file for my volume. Does it make sense? I could pay for this code who want to write it.

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tinh

Altair Community Member

Oct 13, 2020

Updated Oct 13, 2020 by tinh

Hello @, first of all thank you very much for your work, I know this is very late but I really need to export a surface mesh to VTK and I can't seem to get your script to work, I have copied the script you pasted, pasted it onto a notepad and saved it with a .tcl extension.

I have opened it with HyperMath and have separated all the lines, I am uploading the result here (I have uploaded it with a .txt extension so that it will allow me to upload it).

I have then tried to run the command you posted on the command view of Hypermesh (making sure I was in the correct folder) while my mesh was open, but I get the error "hm_getvalue: Mark is empty."

Am I missing any steps? Is the file I uploaded correctly modified? Is the extension .tcl ok or does it need to have a different extension?. Thank you very much for your help.

Do you display the 2D elements on?

input command 'p_Export2DToVtpFile sample.vtk displayed' to export displayed 2D elements

or 'p_Export2DToVtpFile sample.vtk all' to export all 2D elements

QuyNguyenDai

Altair Community Member

Oct 13, 2020

Updated Oct 13, 2020 by QuyNguyenDai

My script supports now also solid mesh.