Create a discrete legend

[Rafael_Scatena]

Hey!

Mapping Scalars into colors

Hello, I am trying to color the connected components in the image according to their cell scalar value array. The scalarbar renders ok, with the correct labels, but the image renders only with one color. Thank you selectCells->Update(); vtkNew<vtkGeometryFilter> geometry; geometry->SetInputConnection(selectCells->GetOutputPort()); geometry->Update(); vtkSmartPointer<vtkPolyData> geometry_mesh; geometry_mesh = geometry->GetOutput(); if(geometry_mesh){ vtkCellData…