[vtkusers] 3D vector data problems

[Dominik Szczerba]

you need real numbers not text (v_x(0,0,0)) probabely error in your
writing routine
--ds

Christopher Wareing wrote:
> Hi,
> 
> I'm sure this question has been asked before, but I've tried to find an
> answer in the archives and haven't been able to, so here goes:-
> 
> I'm using mayavi to visualise 3D scalar data and have been doing so
> without problem using the STRUCTURED_POINTS vtk class. I'm now trying to
> visualise 3D vector data, velocity at each point in fact, using the same
> class using the following vtk file format:
> 
> ---------------------------------------------------------------
> 
> # vtk DataFile Version 2.0
> Velocity dataset
> ASCII
> 
> DATASET STRUCTURED_POINTS
> DIMENSIONS 61 51 81
> ORIGIN 0 0 0
> SPACING 0.00875 0.00875 0.00875
> POINT_DATA 251991
> VECTORS velocity float
> LOOKUP_TABLE default
> v_x(0,0,0) v_y(0,0,0) v_z(0,0,0)
> v_x(1,0,0) v_y(1,0,0) v_z(1,0,0)
> v_x(2,0,0) v_y(2,0,0) v_z(2,0,0)
> .
> .
> .
> v_x(60,0,0) v_y(60,0,0) v_z(60,0,0)
> v_x(1,1,0) v_y(1,1,0) v_z(1,1,0)
> v_x(2,1,0) v_y(2,1,0) v_z(2,1,0)
> .
> .
> .
> v_x(60,50,80) v_y(60,50,80) v_z(60,50,80)
> 
> ----------------------------------------------------------------
> 
> only I'm getting the following error from Mayavi:
> 
> Generic Warning: In C:\aap\src\VTK-4.4\IO\vtkDataReader.cxx, line 830
> Error reading ascii data!
> 
> and no data loaded into Mayavi.
> 
> Does anyone have any idea where I'm going wrong?
> 
> Thanks in advance,
> Chris W
> 
> 
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-- 
Dominik Szczerba, Dr.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi