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,
aboveColor='grey',
belowColor='white',
interpolate=False,
)
mesh.pointColors(data, cmap=lut1).addScalarBar()
#Avoid interpolating cell colors before mapping:
#mesh.mapper.InterpolateScalarsBeforeMappingOff()
mesh.show(bg='white', axes=1, viewup='z')
from vtkplotter import makeLUT, Sphere
mesh = Sphere().lineWidth(0.1)
# create some data array to be associated to points
data = mesh.points()[:,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,
aboveColor='grey',
belowColor='white',
interpolate=False,
)
mesh.pointColors(data, cmap=lut1).addScalarBar()
#Avoid interpolating cell colors before mapping:
#mesh.mapper.InterpolateScalarsBeforeMappingOff()
mesh.show(axes=1, viewup='z')