<div dir="ltr">If you only need the volume just define the "Physical Volume". If you need the surface just define "Physical Surface". I you need both, define both. Very simple.<div><br></div><div>Regards, </div><div><br></div><div>Billy.</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 22, 2016 at 3:29 PM, Nikhil Vaidya <span dir="ltr"><<a href="mailto:nikhilvaidya91@gmail.com" target="_blank">nikhilvaidya91@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi!<div><br></div><div>I need a tetrahedral mesh for FEM simulations. I therefore need a mesh file only with the vertices and tetrahedral mesh elements. How do I get gmsh to write only these to file instead of all the element types?</div><div><br></div><div>Best regards,</div><div>Nikhil Vaidya</div></div>
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