[Paraview] bug in vtkLookupTable?

[Rafael Küng]

Hi There

I'm trying to get colored points and tracks with a reader, but i only 
get the first point colored.. can somebody please give me a hint? It 
looks to me that the SetTableRange(d,d) is not doing what it's supposed 
to do... (pv 3.8.0)


In position (vtkPoints) i've got 10 points, connected with lines. I 
would like to color each point according to it's snapid (vtkIdTypeArray).
So, it does some coloring, but only on the line between the 1st point 
(SnapId=0) and the second point (SnapId 1)..


Many thanks
Rafael Kueng
University of Zuerich


My code:

-
vtkPolyData * out = vtkPolyData::GetData(outputVector);

//...generate points...

vtkSmartPointervtkLookupTable lut = 
vtkSmartPointervtkLookupTable::New();

lut-Build();
lut-SetTableRange(0,9);
lut-SetNumberOfTableValues(10);
lut-SetTableValue(0,1,0,0);
lut-SetTableValue(1,1,1,0);
lut-SetTableValue(2,1,1,1);
lut-SetTableValue(3,0,1,1);
//...

SnapId-SetLookupTable(lut2);

out-SetPoints(Position);
out-SetVerts(Cells);
out-SetLines(Tracks);
out-GetPointData()-AddArray(SnapId);

-

i also tried lut-build after setting the table values, doesn't make any 
difference..

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Re: [Paraview] bug in vtkLookupTable?

[John Drescher]

On Wed, Dec 8, 2010 at 4:27 PM, Rafael Küng rafi.ku...@gmx.ch wrote:
 Hi There

 I'm trying to get colored points and tracks with a reader, but i only get
 the first point colored.. can somebody please give me a hint? It looks to me
 that the SetTableRange(d,d) is not doing what it's supposed to do... (pv
 3.8.0)

 In position (vtkPoints) i've got 10 points, connected with lines. I would
 like to color each point according to it's snapid (vtkIdTypeArray).
 So, it does some coloring, but only on the line between the 1st point
 (SnapId=0) and the second point (SnapId 1)..

 Many thanks
 Rafael Kueng
 University of Zuerich


 My code:

 -
 vtkPolyData * out = vtkPolyData::GetData(outputVector);

 //...generate points...

 vtkSmartPointervtkLookupTable lut =
 vtkSmartPointervtkLookupTable::New();
 lut-Build();
 lut-SetTableRange(0,9);
 lut-SetNumberOfTableValues(10);
 lut-SetTableValue(0,1,0,0);
 lut-SetTableValue(1,1,1,0);
 lut-SetTableValue(2,1,1,1);
 lut-SetTableValue(3,0,1,1);
 //...


Put the following line here instead of at the top.

lut-Build();

 SnapId-SetLookupTable(lut2);

 out-SetPoints(Position);
 out-SetVerts(Cells);
 out-SetLines(Tracks);
 out-GetPointData()-AddArray(SnapId);

 -

 i also tried lut-build after setting the table values, doesn't make any
 difference..
 ___
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-- 
John M. Drescher
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