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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">Hello Marios,</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"> mark your surface(s) as physical. Gmsh will save only those elements that have some physical tag associated with them. Take a look at gmsh reference manual, section 6.2:</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"> http://www.geuz.org/gmsh/doc/texinfo/gmsh.html#Elementary-vs-physical-entities</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">Best regards,</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"> Martin Vymazal</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">On Tuesday 16 of April 2013 19:49:40 Marios Papadopoulos wrote:<br /></p>
<p style=" margin-top:12px; margin-bottom:0px; margin-left:40px; margin-right:40px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">I have created one <span style=" font-weight:600;">mygeometry.geo</span> file which contains points, lines, circles (with additional helping nodes to define arcs), line loops, surfaces, and a recombine surface definitions in 2D. From command line, I can create with <span style=" font-weight:600;">gmsh -2 mygeometry.geo </span>the desired mesh with quadrilateral elements. The aforementioned command will produce <span style=" font-weight:600;">mygeometry.msh</span>. Is there any option, to remove additional nodes (used only for geometry purposes) from <span style=" font-weight:600;">$Nodes</span> block, and also all the elements marked with labels "15" and "1" (points and 1D line elements correspondigly) in <span style=" font-weight:600;">$Elements</span> block of .msh file? I need only "pure" mesh nodes and pure quad elements in msh file.<br /><br />Thanks in advance!<br /></p>
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