When you use the transform filter it will also transform the "active" vectors, i.e. rotating the model will rotate the vectors too. Note: this is very confusing if you have multiple vectors as it is not immediately obvious which one is getting transformed (as only one is "active"). Regards, Paul
On 25 Nov 2010 10:44, "Adriano Gagliardi" <agaglia...@ara.co.uk> wrote: Dear All, I've come across some strange behaviour using the transform filter. I have two pipelines that are near identical. Infact, the only difference is the point at which a transform about a single axis is applied. The process is as follows: 1 Read Data 2 Extract Blocks 3 Extract Surface 4 Generate Surface Normals 5 Calculator (create vector, var*Normals) 6 Calculator (create vector from scalars) 7 Integrate data If I apply the transform at any point before step 6, I get one set of integrated values. If I apply it after step 6, then my x components of the first vector & z component of the second vector are completely different (even different signs), but the others still agree well. I noticed that the transform filter was actually converting the value computed in item 6 from a double to a float, so I changed this last night and recompiled. I also changed the vtkPolyDataNormals to use doubles instead of floats. However, neither of these changes has helped the issue. I fail to see why the timing of applying the transform for this case should influence the results so. Have I missed something? Regards, Adriano =================================== Adriano Gagliardi MEng PhD Business Sector Leader Computational Aerodynamics Aircraft Research Association Ltd. Manton Lane Bedford Tel: 01234 32 4644 E-mail: agaglia...@ara.co.uk Url: www.ara.co.uk ********************************************************************** This email contains information that is private and confidential and is intended only for the addressee. If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender. Note: All email sent to or from this address may be accessed by someone other than the recipient, for system management and security reasons. Aircraft Research Association Ltd. Registered in England, Registration No 503668 Registered Office: Manton Lane, Bedford MK41 7PF England VAT No GB 196351245 ********************************************************************** _______________________________________________ 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