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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Thanks for your great note, Dave. Yeah! I would be able to at least view the edge values, although I could not specify the data. Previously I searched in points data, I now view the values by Surface With Edges option.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Dave May [mailto:dave.mayhem23@gmail.com] <br><b>Sent:</b> Wednesday, February 14, 2018 5:37 AM<br><b>To:</b> Matthew Knepley <knepley@gmail.com><br><b>Cc:</b> Mohammad Hassan Baghaei <mhbaghaei@mail.sjtu.edu.cn>; PETSc <petsc-users@mcs.anl.gov><br><b>Subject:</b> Re: [petsc-users] Accessing a field values of Staggered grid<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On 13 February 2018 at 21:17, Matthew Knepley <<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><p class=MsoNormal>On Tue, Feb 13, 2018 at 3:21 PM, Mohammad Hassan Baghaei <<a href="mailto:mhbaghaei@mail.sjtu.edu.cn" target="_blank">mhbaghaei@mail.sjtu.edu.cn</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I am filling the local vector from dm , has a section layout. The thing is I want to know how I can see the field variable values defined on edges, the staggered grid. In fact, Whenever I output to VTK in preview, I would be able to see the main grid. But the values which are defined on edges, I could not see them and that makes me unsure about the way I fill the local vector. How I would be babe to check the field value on staggered grid?<o:p></o:p></p></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>VTK does not have a way to specify data on edges, only on cells or vertices.<o:p></o:p></p></div></div></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>This is not entirely true.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>At least for a staggered grid, where you have one DOF per edge, you can represent the edge data via the type VTK_VERTEX.<o:p></o:p></p></div><div><p class=MsoNormal>You won't generate a beautiful picture, as your field will be rendered as a set of points (your edge faces) - but you can at least inspect the values within ParaView.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal> Dave<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal> Thanks,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal> Matt<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Amir<o:p></o:p></p></div></div></blockquote></div><p class=MsoNormal><span class=hoenzb><span style='color:#888888'>-- <o:p></o:p></span></span></p><div><div><div><div><div><p class=MsoNormal><span style='color:#888888'>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='color:#888888'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:#888888'><a href="http://www.caam.rice.edu/~mk51/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><o:p></o:p></span></p></div></div></div></div></div></div></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>