Christian, Sorry I've been meaning to write up a quick script for you. For starters take a look at:
http://www.paraview.org/Wiki/Python_Programmable_Filter http://www.paraview.org/Wiki/Python_recipes Here's the algorithm: * Create a new vtkDoubleArray (or another vtkDataArray subclass) with 2 components and number of tuples = number of points. * Get access the to two input arrays you want to use an texture coordinates. * Iterate over each value in the two array and insert them as the two components in the new array * Set the new array as the TCoords in the output's point data. Utkarsh On Tue, Mar 16, 2010 at 6:38 AM, Dressler, Christian <christian.dress...@medizin.uni-leipzig.de> wrote: > Hi Utkarsh, > > could you give me some hints or catchwords how to realize that filter? > Perhaps a link to tutorial you recommend? > > > Best, > > Christian > > -----Ursprüngliche Nachricht----- > Von: Utkarsh Ayachit [mailto:utkarsh.ayac...@kitware.com] > Gesendet: Freitag, 12. März 2010 16:13 > An: Dressler, Christian > Cc: paraview@paraview.org > Betreff: Re: [Paraview] Use existing texture map for 3D surface > > The problem is that the uv array needs to be marked as "Texture" > attribute for the PointData. You can write a PythonProgrammableFilter > which generate an output with the Texture coords setup correctly. Let > me know if you need help with that. Also remember this filter will > have to combine the two "u" and "v" arrays produced by > vtkTableToPoints into a single array with 2 components. > > Utkarsh > > On Fri, Mar 12, 2010 at 10:05 AM, Dressler, Christian > <christian.dress...@medizin.uni-leipzig.de> wrote: >> Hi Eric, >> >> Unfortunately this does not work. Neither for the point cloud, nor for the >> surface. It does only work after generating a map by paraview, but this is >> the wrong map. >> >> I also tried to rename the columns header the way paraview does, but it did >> not work. I am looking for an option similar to the "table to points >> filter", where I am asked which column has which meaning. >> >> Thanks, >> >> Christian >> >> >> -----Ursprüngliche Nachricht----- >> Von: Eric E. Monson [mailto:emon...@cs.duke.edu] >> Gesendet: Freitag, 12. März 2010 15:54 >> An: Dressler, Christian >> Cc: paraview@paraview.org >> Betreff: Re: [Paraview] Use existing texture map for 3D surface >> >> Hey Christian, >> >> If your data already has valid texture coordinates, highlight your surface >> in the Pipeline Browser. You should be able to go to the Display tab of the >> Object Inspector and in the Color section there is an Apply Texture combo >> box that should not be grayed-out if everything is ready for texturing. If >> you pull down to Load... it will let you load your texture image and you >> should see it on your surface. >> >> Let us know if you have problems, >> -Eric >> >> ------------------------------------------------------ >> Eric E Monson >> Duke Visualization Technology Group >> >> >> On Mar 12, 2010, at 7:51 AM, Dressler, Christian wrote: >> >>> >>> Hi, >>> >>> I am trying to reconstruct data generated by a surface scanner with >>> paraview. The data is structured as xyzuv arrays. I managed to calculate >>> the surface by using the filters "Table to points" and "Delaunay 2D". >>> >>> But I could not figure out, how to apply the texture to the surface. The >>> uv-coordinates have the same format as the maps generated by the paraview >>> texture filters (normalized position of bitmap). >>> >>> How can I make paraview using my own texture map? >>> >>> >>> Best, >>> >>> Christian >>> ____________________________________________ >>> Dipl.-Ing. Christian Dressler >>> Research Associate | Working Group - S-DICOM Solutions >>> >>> Universität Leipzig | Faculty of Medicine >>> Innovation Center Computer Assisted Surgery (ICCAS) >>> Semmelweisstr. 14 >>> D - 04103 Leipzig >>> Germany >>> >>> phone +49 (0) 341 97 - 12018 >>> fax +49 (0) 341 97 - 12009 >>> christian.dress...@medizin.uni-leipzig.de >>> http://www.iccas.de/?id=430 >>> ____________________________________________ >>> >>> _______________________________________________ >>> 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 >> >> _______________________________________________ >> 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 >> > _______________________________________________ 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
