<div dir="ltr">Dear Gmsh,<br><br>Maybe this is an easy thing I've overlooked. But I am trying understand, mesh, and save and export a compound (reparamerized) mesh. I have made a small test example re-meshing a 2D triangle with one troublesome point (number 2).<br><br>The meshing seems to work fine, as Gmsh meshes and displays the compound
surface but when I save the mesh I only seem to get the first grid
belonging to plane surface 1. Is it possible to only save the mesh for
the compound surface 2 with corresponding edge elements (with physical
tags)?<br><br>The corresponding .geo data is attached here below (I'm running the Gmsh 3.0.5 Windows 10 build):<br><br>Point (1) = {0,0,0,0.5};<br>Point (2) = {0.95,0,0,0.5};<br>Point (3) = {1,0,0,0.5};<br>Point (4) = {0,1,0,0.5};<br>Line (1) = {1,2};<br>Line (2) = {2,3};<br>Line (3) = {3,4};<br>Line (4) = {4,1};<br>Physical Line (1) = {1,2};<br>Physical Line (2) = {3};<br>Physical Line (3) = {4};<br>Compound Line (5) = {1,2};<br>Line Loop (1) = {1,2,3,4};<br>Plane Surface (1) = {1};<br>Compound Surface (2) = {1};<br>Physical Surface (1) = {1};<br><br><br></div>