3D plot with color code

ROOT
1

Hay
I would like to know whether it is possible to make a 3D plot with points where the color of the points depends on a fourth value. I know that it is possible to link the color to one of the axis but I would like to use a fourth dimension
thanks for help
best regards
florian

2

Yes, simply plot a TTree using 4 variables. The 4th one will be mapped on colors.

3

could you give a short example how this would look like? I do not completely understand how to plot with Trees…
thanks for help
florian

4

For instance take the TNtuple generated by:

$ROOTSYS/tutorials/hsimple.C

and type:

ntuple->Draw(“px:py:pz:sin(px)”)