[vtkusers] How to apply different colours to the extracted mean curvature in vtkcurvature

[Polly Lina]

I am applying vtkCurvature "SetCurvatureToMean" to extract the 3D face
polydata.
My question is:
Can anyone please help me on how can I apply different colours to the
extracted dataset by giving a mean curvature threshold.  Eg: The values >
0.05 label the surface to black, the values <=0.05 label the surface to
red..etc

This is my code:
vtkCurvatures> meanCurve = vtkCurvatures::New();
	meanCurve->SetInputConnection(reader->GetOutputPort());					
	meanCurve->SetCurvatureTypeToMean();
	meanCurve->Update();

vtkLookupTable* lut = vtkLookupTable::New();
	lut->SetNumberOfColors(2);

double H;
	for (int i = 0; i < nOfPnts; i++)
	{
		H =
(double)meanCurve->GetOutput()->GetPointData()->GetScalars()->GetTuple1(i);
		if (H >= 0.05)
		{
			lut->SetTableValue(0.0, 0.0, 0.0, 1);
		}
		else
		{
			lut->SetTableValue(1.0, 1.0, 1.0, 1);
		}
	}
lut->Build();

I could only get partially coloured and it is not what i expected.
Thanks and helps are so much appreciated!



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