Is negative spacing really supported in VTK/ParaView? The VTK File Formats document for legacy data (http://www.vtk.org/VTK/img/file-formats.pdf) states under the description of the structured points data:
"The data spacing sx, sy, sz must be greater than 0." This is apparently not enforced in the reader, however. Thanks, Cory On Fri, Sep 19, 2014 at 1:01 PM, Scott, W Alan <[email protected]> wrote: > Robert, > I am pretty sure that is a bug. Mind writing up a bug report? Also, your > description and example file are great. Be sure to include them in the bug. > > Alan > > -----Original Message----- > From: ParaView [mailto:[email protected]] On Behalf Of > Robert-Zoltan Szasz > Sent: Friday, September 19, 2014 12:57 AM > To: [email protected] > Subject: [EXTERNAL] [Paraview] proper formatting of 2D data > > Hi, > > I tried to visualize 2D structured point data when I observed a strange > behavior. If the spacing in Y direction is negative, the data is flipped > upside-down in 'Slice' representation mode but shown properly as a 'Surface' > representation. Tried in v. 4.0.1 and 4.2rc1 on Linux 64 bit. > Here is a small VTK file to test: > > --8<-- > # vtk DataFile Version 2.0 > testing > ASCII > DATASET STRUCTURED_POINTS > DIMENSIONS 3 4 1 > ORIGIN 0.0 0.0 0.0 > SPACING 0.5 -0.75 1.0 > POINT_DATA 12 > SCALARS test float > LOOKUP_TABLE default > 0.0 > 1.0 > 2.0 > 1.0 > 2.0 > 3.0 > 2.0 > 3.0 > 4.0 > 3.0 > 4.0 > 5.0 > -->8-- > > I am wondering if I missed something when formatting the file or if you have > any ideas how to avoid this behavior? > Thanks, > Robert > > -- > Robert-Zoltan Szasz > Div.Fluid Mechanics Tel: +46-46-222 0480 > Dept. Energy Sciences, LTH Fax: +46-46-222 4717 > Lund University > > _______________________________________________ > 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://public.kitware.com/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://public.kitware.com/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://public.kitware.com/mailman/listinfo/paraview
