How to plot multi circles with different color and size

ROOT
1

Hi, all
I want to plot a skymap with multi circle, each circle with different color(mass) and size(distance). I could Draw this with many TEllipses.
Is there an easy way to plot this map with TGraph2D or other way?

2

How are stored your data ? in which object ?

3

data saved with TTree
(x:y:mass:distance)

4

You can easily do a 3D colour plot with:

tree.Draw("x:y:mass:distance");

Can it be a solution ?

5

can this draw an 2D map?
default is 3D

6

No. The 2D will be draw with:

tree.Draw("x:y:mass","","COL");

may be several map on top of each other with different value of distance …

Or may be at the end it might be easier to get the variables from the tree and produce a custom plot. I can have a look if you post the tree.

7

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