Thanks Andy. However, in the information tab, I see the data array called "normals" after I apply the programmable filter. The array is there (and from the spreadsheet view I know that it is identical to the case where I copy the array) but the resulting surface does not use the array! Instead of a smooth surface, I get a bumpy surface computed without normals. Best, -Katie
On Tue, Jun 26, 2012 at 2:16 PM, Andy Bauer <andy.ba...@kitware.com> wrote: > Hi Katie, > > I'm guessing you're looking at the arrays that are available to > pseudo-color with in the GUI. Those normals usually aren't in the filter > output data set. To see what arrays are available, look under the > information tab. To create those arrays for polydata (possibly using the > extract surface filter) and then use the generate surface normals filter. > > Andy > > On Tue, Jun 26, 2012 at 2:09 PM, Kathleen Schwarz <kas...@cornell.edu>wrote: > >> Hello, >> I am trying to transform a surface using a programmable filter, and I am >> unable to get the output to use the normals. Even the most basic filter: >> >> output.PointData.append(inputs[0].PointData['Normals'], 'Normals') >> >> results in the mesh being copied but the normals not being used. The >> normals appear as a Data Array, but are not used in rendering. However, >> using the copy arrays option in the properties of the programmable filter >> lead to the normals being used correctly. >> >> What I would like to do is to apply an affine transformation on the point >> positions and normals (and visualize contours of a scalar field on a >> uniform, nonorthogonal parallelepiped grid), so I can't just use the copy >> arrays option. >> >> Thanks in advance! >> -Katie >> >> _______________________________________________ >> Powered by 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 >> >> >
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