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.
From: Dave May [mailto:[email protected]] Sent: Wednesday, February 14, 2018 5:37 AM To: Matthew Knepley <[email protected]> Cc: Mohammad Hassan Baghaei <[email protected]>; PETSc <[email protected]> Subject: Re: [petsc-users] Accessing a field values of Staggered grid On 13 February 2018 at 21:17, Matthew Knepley <[email protected] <mailto:[email protected]> > wrote: On Tue, Feb 13, 2018 at 3:21 PM, Mohammad Hassan Baghaei <[email protected] <mailto:[email protected]> > wrote: Hi 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? VTK does not have a way to specify data on edges, only on cells or vertices. This is not entirely true. At least for a staggered grid, where you have one DOF per edge, you can represent the edge data via the type VTK_VERTEX. 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. Thanks, Dave Thanks, Matt Thanks Amir -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.caam.rice.edu/~mk51/>
