Dear Sir,<br><br>I really like gmsh. I would like to use it at the start of my process chain. What I'd like to do is the following: Obtain an STL file from somewhere, using a geo file merge in the stl file, possibly constructing additional boundaries, and then crutially, give each surface of the geometry a physical boundary name i.e: Physical Surface("Outlet") = {21};. This is really good for me as the downstream use is a CFD solver. I need to have strings/flags on the triangles of all surfaces, so that I can apply the correct physics. I'd then like to use the 2D mesh option to mesh all of these surfaces. But, then I'd like to exit gmsh, my downstream process constructs the volume mesh. <br>
<br>However, what I'd like to read into my downstream process is the output of gmsh which are meshed surfaces and crucially the boundary names which I gave them. I'd like if possible if this output could be in the form of vtk. So far the only format that I can see that exports the boundary condition/surface names is your own msh format, having looked in the ascii vtk file it does not contain these names.<br>
<br>Is it a) possible to do this using vtk, can you attribute a flag/name/string/ to a face of a tet or surface of a triangle?? b) if so would it be possible for gmsh to provide this export directly contained within the vtk file written out by gmsh.<br>
<br>Many thanks, hope you don't mind me asking.<br><br>Andy<br clear="all"><br>-- <br>__________________________________<br><br> Dr Andrew Parker<br><br> Em@il: <a href="mailto:andrew.parker@cantab.net" target="_blank">andrew.parker@cantab.net</a><br>