Hi there <br><br>Thanks for all the information , but the problem is still there. <br><br>My mesh is 3D when I generate it. but I found something funny, even when I save it , it saves as a *.msh file, and when I open it again in GMSH itself, the mesh contains only the surface of the 3D mesh, so the problem is not in importing the mesh in MATLAB. the problem is GMSH actually saves a 3D mesh as a surface mesh. any ideas ?
<br><br>I couldn't find GMSH 2 windows version online, can you send me the link ?<br><br>Cheers . Ehsan<br>