[vtkusers] How to get color of pixel(or position) on colored polydata

[Cory Quammen]

This example may help:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/Picking

On Tue, Apr 25, 2017 at 5:42 AM, Tharun <tharun160190 at gmail.com> wrote:
> I would like to know the color of pixel or position on actor created below.
>
> vtkSmartPointer<vtkPolyDataMapper> mapper =
> vtkSmartPointer<vtkPolyDataMapper>::New();
> mapper->SetInput(polydata);
> mapper->UseLookupTableScalarRangeOn();
> mapper->InterpolateScalarsBeforeMappingOn();
> mapper->SetLookupTable(lookUpTable);
> mapper->ImmediateModeRenderingOn();
>
> vtkSmartPointer<PSVTKLODActor> actor =
> vtkSmartPointer<PSVTKLODActor>::New();
> actor->SetMapper(mapper);
> actor->GetProperty()->SetInterpolationToFlat();
>
> Thank you
>
>
>
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-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.