[Paraview] cell data on polygonal cells

Tue Jun 22 11:05:35 EDT 2004

Hi,

A few month ago I had some problems displaying cell scalars: it was because
the checkbox "Use triangle strip" was checked.
Using "Immediate Mode Rendering" made things work well.

Maybe it will help...

-- Julien

-----Message d'origine-----
De : Mattijs Janssens [mailto:m.janssens at nabla.co.uk]
Envoyé : mardi 22 juin 2004 16:59
À : Paraview List
Objet : Re: [Paraview] cell data on polygonal cells

Dear paraview developers,

I have the same problem using a scalar cell attribute.

(I would not care too much about a vector cell attribute since as you 
said you can work around it)

Regards,

Mattijs

p.s. some positive feedback as well: I am really enjoying paraview! None 
of the weirdness / inconsistencies of some other postprocessors.

Charles Law wrote:
> Mattijs,
> 
> This is a bug.  I confirmed that ParaView does not color by vector cell 
> attributes properly.  You can get around this by using the array 
> calculator to generate a one component cell attribute which will color 
> properly.
> 
> Charles.
> 
> 
> At 06:17 PM 6/21/2004 +0100, Mattijs Janssens wrote:
> 
>> I have got legacy VTK files with point and cell data on polygons. In 
>> 1.4.2 I can visualize both point and cell data ok but if I use the cvs 
>> version (from 16/6/4) I cannot visualize the cell data (point data is 
>> ok).
>>
>> Attached is a small test file which should have the same behaviour. 
>> Look at field 'p' which should be both in point and in cell format.
>>
>> (my cvs version was compiled with gl2ps support switched on but I 
>> don't expect that to mess up the standard rendering)
>>
>> Anyone any ideas? Known 'feature'?
>>
>> Regards,
>>
>> Mattijs
>>
>>
>> # vtk DataFile Version 2.0
>> movingWall
>> ASCII
>> DATASET POLYDATA
>> POINTS 42 float
>> 0 0.1 0 0.005 0.1 0 0.01 0.1 0 0.015 0.1
>> 0 0.02 0.1 0 0.025 0.1 0 0.03 0.1 0
>> 0.035 0.1 0 0.04 0.1 0 0.045 0.1 0 0.05
>> 0.1 0 0.055 0.1 0 0.06 0.1 0 0.065 0.1
>> 0 0.07 0.1 0 0.075 0.1 0 0.08 0.1 0
>> 0.085 0.1 0 0.09 0.1 0 0.095 0.1 0 0.1
>> 0.1 0 0 0.1 0.01 0.005 0.1 0.01 0.01 0.1
>> 0.01 0.015 0.1 0.01 0.02 0.1 0.01 0.025 0.1 0.01
>> 0.03 0.1 0.01 0.035 0.1 0.01 0.04 0.1 0.01 0.045
>> 0.1 0.01 0.05 0.1 0.01 0.055 0.1 0.01 0.06 0.1
>> 0.01 0.065 0.1 0.01 0.07 0.1 0.01 0.075 0.1 0.01
>> 0.08 0.1 0.01 0.085 0.1 0.01 0.09 0.1 0.01 0.095
>> 0.1 0.01 0.1 0.1 0.01
>> POLYGONS 20 100
>> 4 0 21 22 1 4 1 22 23 2 4
>> 2 23 24 3 4 3 24 25 4 4
>> 4 25 26 5 4 5 26 27 6 4
>> 6 27 28 7 4 7 28 29 8 4
>> 8 29 30 9 4 9 30 31 10 4
>> 10 31 32 11 4 11 32 33 12 4
>> 12 33 34 13 4 13 34 35 14 4
>> 14 35 36 15 4 15 36 37 16 4
>> 16 37 38 17 4 17 38 39 18 4
>> 18 39 40 19 4 19 40 41 20
>> CELL_DATA 20
>> FIELD attributes 3
>> p2 1 20 float
>> -4.44268 -2.0507 -0.97831 -0.569803 -0.360867 -0.240873 -0.170058 
>> -0.123445 -0.0869407 -0.0525158 -0.0147668
>> 0.0302908 0.0873895 0.164404 0.275265 0.446318 0.72455 1.22843 2.41296 
>> 4.92005
>> p 1 20 float
>> -4.44268 -2.0507 -0.97831 -0.569803 -0.360867 -0.240873 -0.170058 
>> -0.123445 -0.0869407 -0.0525158 -0.0147668
>> 0.0302908 0.0873895 0.164404 0.275265 0.446318 0.72455 1.22843 2.41296 
>> 4.92005
>> U 3 20 float
>> 1 0 0 1 0 0 1 0 0 1 0
>> 0 1 0 0 1 0 0 1 0 0
>> 1 0 0 1 0 0 1 0 0 1
>> 0 0 1 0 0 1 0 0 1 0
>> 0 1 0 0 1 0 0 1 0 0
>> 1 0 0 1 0 0 1 0 0
>> POINT_DATA 42
>> FIELD attributes 3
>> p2 1 42 float
>> -4.44268 -3.24669 -1.51451 -0.774056 -0.465335 -0.30087 -0.205465 
>> -0.146751 -0.105193 -0.0697282 -0.0336413
>> 0.007762 0.0588401 0.125897 0.219835 0.360792 0.585434 0.97649 1.8207 
>> 3.66651 4.92005
>> -4.44268 -3.24669 -1.51451 -0.774056 -0.465335 -0.30087 -0.205465 
>> -0.146751 -0.105193 -0.0697282
>> -0.0336413 0.007762 0.0588401 0.125897 0.219835 0.360792 0.585434 
>> 0.97649 1.8207 3.66651
>> 4.92005
>> p 1 42 float
>> -4.44268 -3.24669 -1.51451 -0.774056 -0.465335 -0.30087 -0.205465 
>> -0.146751 -0.105193 -0.0697282 -0.0336413
>> 0.007762 0.0588401 0.125897 0.219835 0.360792 0.585434 0.97649 1.8207 
>> 3.66651 4.92005
>> -4.44268 -3.24669 -1.51451 -0.774056 -0.465335 -0.30087 -0.205465 
>> -0.146751 -0.105193 -0.0697282
>> -0.0336413 0.007762 0.0588401 0.125897 0.219835 0.360792 0.585434 
>> 0.97649 1.8207 3.66651
>> 4.92005
>> U 3 42 float
>> 1 0 0 1 0 0 1 0 0 1 0
>> 0 1 0 0 1 0 0 1 0 0
>> 1 0 0 1 0 0 1 0 0 1
>> 0 0 1 0 0 1 0 0 1 0
>> 0 1 0 0 1 0 0 1 0 0
>> 1 0 0 1 0 0 1 0 0 1
>> 0 0 1 0 0 1 0 0 1 0
>> 0 1 0 0 1 0 0 1 0 0
>> 1 0 0 1 0 0 1 0 0 1
>> 0 0 1 0 0 1 0 0 1 0
>> 0 1 0 0 1 0 0 1 0 0
>> 1 0 0 1 0 0 1 0 0 1
>> 0 0 1 0 0
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-- 
/*---------------------------------------------------------*\
| ===========           Mattijs Janssens                    |
| \\        /           Development Engineer                |
|  \\      /                                                |
|   \\    /             Nabla Ltd.                          |
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|     \\/               Picketts Lane, Salfords,            |
|     F ield            Surrey RH1 5RG.                     |
|     O peration        Tel: +44 (0)1293 821272             |
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