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from vtkplotter import makeLUT, Sphere
mesh = Sphere().lineWidth(0.1)
# create some data array to be associated to points
data = mesh.getPoints()[:,2]
data[10:20] = float('nan')
# Build a lookup table of colors:
# scalar color alpha
lut1 = makeLUT([(-0.80, 'pink' ),
(-0.33, 'green', 0.8),
( 0.67, 'red' ),
vmin=-1, vmax=1,
mesh.pointColors(data, cmap=lut1).addScalarBar()
#Avoid interpolating cell colors before mapping:
#mesh.mapper.InterpolateScalarsBeforeMappingOff()'white', axes=1, viewup='z')
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