[Paraview] Point Cloud in Ensight Case Format

[Dominik Szczerba]

did you try cellData2PointData filter?
--dsz

Holger Bauer wrote:
> 
> Thanks for all the help. No, in the pull-down selection box of the
> color field
> there are then only the fields:
> 
> Color by:
> Cell cellNormals (3)
> and Point Normals (3) (+of course the normal uni-color "Property"
> selection)
> This is what drive me crazy ...
> 
> Any other ideas?
> 
> I have found a python script that basically converts the xyz data
> into:
> 
> xyz + scalar .vtk data file. Using this just for the
> point location information and setting simply the scalar value to the
> z-coordinate (quick and dirty) the .vtk file is read and all the
> colors are
> displayed perfectly on the points. The file format is quite simple:
> 
> Therefore I decided to write a small program that parses the .case
> file and
> converts all the data into one single VTK file.
> 
> The converter (as far as I have understood) just takes all the points
> and
> defines single-vertex cells (whatever this is). However this can be
> opened and
> colorized in paraview without any problems.
> 
> Any further ideas (I think I still am doing something wrong) are
> welcome ...
> 
> For those who are interested, this is the format of the .vtk file
> that works:
> 
> - Holger -
> 
> -----------------------------------------------------------------------------
> 
> # vtk DataFile Version 2.0
> loop
> ASCII
> DATASET UNSTRUCTURED_GRID
> POINTS 1510578 float
> 1.59800e+02  1.46900e+02  1.38800e+02
> ....
> CELLS 1510578 3021156
> 1 0
> 1 1
> 1 2
> ...
> 1 1510577
> CELL_TYPES 1510578
> 1
> 1
> ...
> 1
> 1
> 
> POINT_DATA 1510578
> SCALARS Z_Value float 1
> LOOKUP_TABLE default
> 1.38800e+02
> 1.38800e+02
> 1.38800e+02
> ...
> -------------------------------------------------------------------------
> 
>>
>> After loading your Ensight data, apply the Glyph filter with the
> 
> sphere
> 
>> glyph to create the particle effect in your points and choose your
> 
> scalar
> 
>> field to scale and/or colorize your data. To colorize, go to
> 
> "display" tab
> 
>> in the field "color by" choose your scalar field. I guess it'll
> 
> work...
> 
>>
>> Regards
>>
> 
> 
> 
> 
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-- 
Dominik Szczerba, Dr.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi