Re: [Paraview] proper formatting of 2D data
Thank you Burlen, I just filed a bug report this morning. I will also adjust the export routines to avoid negative spacings for the time being. Robert On 2014-09-19 18:24, Burlen Loring wrote: Hi Robert, Good one! The slice rep uses GPU textures and this behavior looks a bug in the logic that sets up the texture. You should file a bug report. There's an easy workaround. Convert to a positive spacing and adjust the origin accordinigly. The data will the occupy the same region. Here's how your file looks then: --8-- # vtk DataFile Version 2.0 testing ASCII DATASET STRUCTURED_POINTS DIMENSIONS 3 4 1 ORIGIN 0.0 -2.25 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-- Burlen On 09/18/2014 11:56 PM, Robert-Zoltan Szasz wrote: 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 ___ 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
[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
Re: [Paraview] proper formatting of 2D data
Hi Robert, Good one! The slice rep uses GPU textures and this behavior looks a bug in the logic that sets up the texture. You should file a bug report. There's an easy workaround. Convert to a positive spacing and adjust the origin accordinigly. The data will the occupy the same region. Here's how your file looks then: --8-- # vtk DataFile Version 2.0 testing ASCII DATASET STRUCTURED_POINTS DIMENSIONS 3 4 1 ORIGIN 0.0 -2.25 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-- Burlen On 09/18/2014 11:56 PM, Robert-Zoltan Szasz wrote: 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 ___ 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
