How to add intensity value at every point in a point cloud using vtk? I am using python

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vtki is VTK. It simply adds a layer on top to make VTK way easier to use so that we don’t have to remember the nuances of lookup tables and rendering, etc.

All vtki data objects are instances of VTK data objects:

>>> import vtk
>>> import vtki
>>> isinstance(vtki.PolyData(), vtk.vtkPolyData)
True
>>> isinstance(vtki.UnstructuredGrid(), vtk.vtkUnstructuredGrid)
True
  • You’ll need to create a mapper: vtk.vtkDataSetMapper()
  • Then set up that mappers lookup table properly: mapper.GetLookupTable() and set its attributes/colormapping

Try following this example or this cpp exmaple which could be translated to Python