XDMF does not have a defined way to mark an array as being "the shading normals". Even for its attribute types scalar, vector tensor etc, vtk's DataSetAttributes active attribute concept is not a 1:1 match so losing semantic information like this in translation there happens.
The work around is to apply a filter that tells ParaView that you want this specific array to be used in that way. For example: apply calculator filter with expression "Normals" and check off the "Result Normals" control. Note, if speed/memory is a concern you do the same thing by shallow copying and directly setting the attribute flag in the python programmable filter. David E DeMarle Kitware, Inc. R&D Engineer 21 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-881-4909 On Fri, Mar 13, 2015 at 11:29 AM, Feijoo, Gonzalo < [email protected]> wrote: > Hello, Everyone, > > > > How can I use normals defined at each node to visualize a triangulation > using Gouraud shading? If I write my data in the .vtk format, then this is > automatically done by Paraview by saving the normals in the NORMALS field > within the POINT_DATA field. But how can I do this from data saved in an > XDMF/HDF5 file? I mean, how would I need to specify the normals in the XDMF > file for the shader to use these vectors? > > > > Thank you in advance for any help. > > > > Best regards, > > > > Gonzalo R. Feijóo > > Advanced projects and architecture > > Specialized Engineering > > > > Siemens Industry Sector > > Siemens Product Lifecycle Management Software Inc. > > 200 Fifth Avenue > > Waltham, MA 02451 United States > > Tel. :+1 (781) 907-9751 > > Fax :+1 (781) 907-9880 > > [email protected] > > www.siemens.com/plm > > > > _______________________________________________ > 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 > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > >
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