Andy Bauer wrote:
I think the cell normals that you have are generated for visualization and not really part of your data set that's directly outputted from your filter. So when you do cell data to point data you still don't have the normals in there.It works now (when I click extract surface, the generate surface normals filter becomes active).Did you try using the extract surface and generate surface normals filters?
Thanks, Stephen
On Sun, Jun 19, 2011 at 12:52 PM, Stephen Wornom <[email protected] <mailto:[email protected]>> wrote:Andy Bauer wrote: One way is to use the calculator filter to multiply the pressure by the normal to get force per unit area on the cylinder. Then you can use the integrate variables filter to get the total force on it. If you don't have normals on your cylinder, you can use the generate surface normals filter but that only works for polydata. The extract surface should get you from any other data set to the polydata you want. I have cell normals (vector) next I do cell data to point data extract surface when I do calculator, the cell normal vector is not in the list. How do I get the cell normal vector in the calculator list? Thanks for your help, Stephen Andy On Sun, Jun 19, 2011 at 4:01 AM, Stephen Wornom <[email protected] <mailto:[email protected]> <mailto:[email protected] <mailto:[email protected]>>> wrote: How does one compute the integral of P Normal ds ? where Normal is the surface normal vector click on integrate variables computes the integral of P ds I would like Fx = integral of P nx ds where nx ds is the surface area normal to the x-direction. Hope my question is clear. Stephen p.s. The surface in question is a cylinder _______________________________________________ Powered by www.kitware.com <http://www.kitware.com> <http://www.kitware.com> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview-- [email protected] <mailto:[email protected]>2004 route des lucioles - BP93 Sophia Antipolis 06902 CEDEXTel: 04 92 38 50 54Fax: 04 97 15 53 51
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