TGraph3D

ROOT
1

Hello,

I have seen few announcements of the class TGraph3D (for instance root.cern.ch/cgi-bin/print_hit_b … #first_hit ) . Has it been implemented already, but under a different name?

Regards
Michele

2

This is now implemented in class TGraph2D.
see: root.cern.ch/root/htmldoc/TGraph2D.html

Rene

3

Hello,
I wanted to plot 3D point, and if found TGraph2D very useful for that.
The problem that i am facing is that the color of the point is decided by the z value of the point.
In my application the color of the point is defined by another value, so i am having set of points
like
xval, yval, zval, col

So is there any function to change the color of point and set its color depending on “col” value supplied

Thanks

4

You need to put your data into a TNtuple and do:

ntuple->Draw("xval:yval:zval:col","","COL")