A good strategy to label a particular point of a vtkPolyData (or display a something near it)


There’s this example https://vtk.org/Wiki/VTK/Examples/Cxx/Visualization/LabeledDataMapper of vtkLabeledDataMapper but I don’t want to label all points, is there a way to label only a point with that class ?

If I want to create a little popup/bubble with some text and an image and place it near a point of the vtkPolyData, what’s the easiest/efficient way (strategy) to do it ?