I want to visualize connections between atoms, and each (half-)line must be coloured by atom's colour. I have something like this: N -> (set(X, Y, Z), (Red, Green, Blue)) , N is in Integer1DSet(Max), set(X, Y ,Z):= Gridded3DSet(X, Y, Z) with mainfold dimension 1 (lines), ScalarMaps are XAxis, YAxis, ZAxis, Red, Green, Blue. So, if all colour elements are the same (Red1=...=RedMax, Green1=...=GreenMax, Blue1=...=BlueMax) I see only grey lines instead of my own colour. Is it right? Where can I read how it works?