[vtkusers] vtkXMLPolyDataReader/Writer problem
    madz 
    madaramh at gmail.com
       
    Thu Nov  7 22:14:00 EST 2013
    
    
  
	
Hi Bill,
The code I used to set up the colour looks as below.
vtkSmartPointer<vtkLookupTable> colorLookupTable =
vtkSmartPointer<vtkLookupTable>::New();
	colorLookupTable->SetTableRange(-100,500);
	double vmin,vmax; 
	colorLookupTable->GetHueRange(vmin,vmax);
	if(vmin!=vmax)
	{
		colorLookupTable->SetHueRange(0.6667,0.0);
	}
	colorLookupTable->Build();
	vtkSmartPointer<vtkContourFilter> contourFilter =
vtkSmartPointer<vtkContourFilter>::New();
	contourFilter->SetInputConnection(polydata->GetProducerPort()); 
	contourFilter->ComputeScalarsOn();
	contourFilter->GenerateValues(20,-100,500);
	// Visualize
	vtkSmartPointer<vtkPolyDataMapper> mapper1 =
		vtkSmartPointer<vtkPolyDataMapper>::New();
	//mapper->SetInputConnection(reader->GetOutputPort());
	
	mapper1->SetInputConnection(contourFilter->GetOutputPort());
	mapper1->SetScalarRange(-100,500);
	mapper1->SetLookupTable(colorLookupTable);
--
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