Hello guys,
im trying to make a tool but there is something i can´t get.

I have a picture with colored points made in photoshop.

Then with the Scatter Sop inside houdini I got to place unique points (with attributes) in those colors.

Then with Instance node I got to place example tubes (wood) in r, b , y
and one platonic solid (treetop) in g (on top).

My problem here is how to get the proper dimensions for the tubes, for example from B (Blue point) to R (Red point) place a cylinder of that exact distance.

Its dificult for explain, i hope somebody understand it. I dont want any L-System tree method, because the point-color templates comes outside from houdini (paint, photoshop, inkskape, gimp..)

Thanks in advance.