[vtkusers] Problem in using vtkLookupTable with vtkContourFilter

[Biddiscombe, John A.]

I think you meant SetTableRange, not SetValueRange (which is the V in HSV)

JB

-----Original Message-----
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf Of Jothybasu Selvaraj
Sent: 09 November 2011 17:49
To: VTK Mailing List
Subject: [vtkusers] Problem in using vtkLookupTable with vtkContourFilter

Hi all,

I am trying to use my own lookup table with vtkContourFilter, so that
it can generate contour line of my own colors.

But some of the lines are of the same color!

Here is my code

 vtkSmartPointer<vtkLookupTable> isoLineTable =
                    vtkSmartPointer<vtkLookupTable>::New();
            double
scalarMin=*std::min_element(isodoseValues.begin(),isodoseValues.end());
            double
scalarMax=*std::max_element(isodoseValues.begin(),isodoseValues.end());
            isoLineTable->SetValueRange(scalarMin,scalarMax);
            qDebug()<<scalarMin<<scalarMax;
            isoLineTable->SetNumberOfTableValues(isodoseValues.size());
           // isoLineTable->SetRampToLinear();
            isoLineTable->Build();

             for(int i=0;i<isodoseValues.size();i++)
             {
                 //qDebug()<<colorsR[i]<<colorsG[i]<<colorsB[i];

isoLineTable->SetTableValue(i,colorsR[i],colorsG[i],colorsB[i]);

             }


            vtkSmartPointer<vtkPolyDataMapper> contourMapper =
                    vtkSmartPointer<vtkPolyDataMapper>::New();
            contourMapper->SetInputConnection(cf->GetOutputPort());
            contourMapper->SetScalarRange(isoLineTable->GetRange());
            contourMapper->SetLookupTable(isoLineTable);
            contourMapper->Update();

Any suggestions?

Thanks

Jothy

-- 
Jothy
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