Dear Aashish, Can I choose the interpolation (linear vs nearest) or is it hard-coded on the call of VTK from Paraview?
A dataset can be downloaded from http://www3.imperial.ac.uk/pls/portallive/docs/1/33505696.ZIP . Please extract the Berea.raw file from the zip. I loaded it using: """ Raw (binary) Files Data Scalar Type: unsigned char Data Byte Order: Little Endian Data Extent: 0-399, 0-399, 0-399 """ Thank you for your attention, Thomas Oliveira On Mon, Nov 30, 2015 at 4:31 PM, Aashish Chaudhary < [email protected]> wrote: > Thomas, > > > > On Mon, Nov 30, 2015 at 10:34 AM, Thomas Oliveira < > [email protected]> wrote: > >> Dear Aashish, >> >> >> I'm using Paraview 4.4.0 64-bit , OpenGL Version 4.5.0 NVIDIA 352.55, >> OpenGL Renderer Quadro K600/PCIe/SSE2. >> >> Tweaking the transfer function improved the result, but the corners are >> rendererd rounded, whereas in the original file I have only cubic voxels. >> > > I am wondering if that would be because of the interpolation (linear vs > nearest) since linear will smooth out the edges just a bit. Is there a > sample dataset you can send my way? > > >> I though that unsetting "Properties > Scalar Coloring > Interpolate >> Scalars Before Mapping" would improve the image, but I saw no change. >> >> You suggested to enable shading, but I couldn't find it. Where is it? >> > > Its on the same panel (left side), scroll to the bottom or search for > "shade" you should be see it. > > - aashish > >> >> >> Thank you for your help, >> >> Thomas Oliveira >> >> >> On Mon, Nov 30, 2015 at 3:07 PM, Aashish Chaudhary < >> [email protected]> wrote: >> >>> Hi Thomas, >>> >>> On Mon, Nov 30, 2015 at 8:54 AM, Thomas Oliveira < >>> [email protected]> wrote: >>> >>>> Hi, >>>> >>>> The Sample.png file attached is an image of a pore medium. Each voxel >>>> in the image is a cube that is either solid or void. >>>> >>>> The Zoom.png file attached is a zoom of it, where it can be seen that >>>> the curved interior solid walls are approximated by a staircase >>>> discretization. >>>> >>>> How can I render this staircase geometry more clearly? >>>> >>> >>> Did you try to tweak the transfer function? Also, you can enable shading >>> to have a look of a solid surface. >>> >>> >>>> I have tried tweaking many properties on ParaView but I still get it >>>> blurred. >>>> >>> >>> Just to be sure, what version of ParaView you are using and what OpenGL >>> backend? >>> >>>> >>>> Thank you for your help, >>>> >>>> Thomas Oliveira >>>> >>>> >>>> _______________________________________________ >>>> 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 >>>> >>>> >>> >>> >>> -- >>> >>> >>> >>> *| Aashish Chaudhary | Technical Leader | Kitware Inc. >>> * >>> *| http://www.kitware.com/company/team/chaudhary.html >>> <http://www.kitware.com/company/team/chaudhary.html>* >>> >> >> > > > -- > > > > *| Aashish Chaudhary | Technical Leader | Kitware Inc. * > *| http://www.kitware.com/company/team/chaudhary.html > <http://www.kitware.com/company/team/chaudhary.html>* >
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