[vtkusers] Change vtkScalarBarActor label text

[mbcx9rb9]

Hi all,

I have a lookup table with a maximum (let's say 100). All values greater
than 100 are rendered in white. 

The problem is that vtkScalarBarActor should show the greatest increment
(next to the white colour) as "≥100", but instead shows it as "100".

Is there any way round this? Maybe to get the text of each increment and add
a "≥" to the max?

Thanks in advance

P.S. rendering is done with vtkLookupTable, vtkImageMapToColors then
vtkScalarBarActor



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