Getting LUT colors for an arbitrary value

[JeffPS13]

Hi, I have a look up table made using: lut = vedo.build_lut(lut_table) and it's applied to a mesh, successfully. Is there a simple way to get lut to return the color that would be applied to an arbitrary value. I want to apply the color from the lut to correctly color slices of the mesh that I extract. Thanks

[marcomusy]

Hi, can you try

print(lut.GetColor(xvalue))

[JeffPS13]

It looks like GetColor takes two input arguments.

[marcomusy]

oh sorry try:

print(lut.MapValue(xvalue))

[JeffPS13]

Thanks for the quick reply Marco. When I use: print(lut.MapValue(xvalue)) I get: _0000023457dcbe20_p_void

[JeffPS13]

Thanks, Marco. You pointed me in the right direction. This works.

rgb = [0.0, 0.0, 0.0]

# Get the color at index k 
self.lut.GetColor(k, rgb)

# Print the RGB value
print(f"The color at index k is: RGB({rgb[0]}, {rgb[1]}, {rgb[2]})")``