How to show lots labels using vtkLabeledDataMapper while the performance is still good?
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I encounter a performance issue while using vtkLabeledDataMapper.
I want to show more than 5K labels with smoothly zoom in or zoom out. I use vtkLabeledDataMapper, the program is very slow. While replacing with vtkLabelPlacementMapper, it looks the same as before.
Does anyone know how to increase the performance? or how to implement my requirement?