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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hello<o:p></o:p></p><p class=MsoNormal>I am using the DMPlex interface for the solving PDEs. A part of mesh, considering, is staggered grid, at the location of middle of each edge. After generation of main grid points, I find it hard to have the staggered grid at the prescribed location. I want to know how to deal with the staggered besides of main grid. Is it better to have another DM for the staggered? Is it possible to extend the DMChart and inserting the points. I would really appreciate for your time.<o:p></o:p></p><p class=MsoNormal>Amir <o:p></o:p></p></div></body></html>