RE: how to draw (x,y.z) point without binning x and y ?

From: Olivier Couet <Olivier.Couet_at_cern.ch>
Date: Mon, 11 Jun 2007 15:28:31 +0200


Hi,  

I guess you should try to use TGraph2D.
http://root.cern.ch/root/html/TGraph2D.html  

Cheers, O.Couet  


From: owner-roottalk_at_pcroot.cern.ch
[mailto:owner-roottalk_at_pcroot.cern.ch] On Behalf Of X. Lu, Peking Univ. Sent: Monday, June 11, 2007 3:06 PM
To: roottalk
Subject: [ROOT] how to draw (x,y.z) point without binning x and y ?

Dear rooters,  

I want to draw a graph for a group of 3-D data (x,y,z) in which the x and y values are not binned, i.e. the point in x-y plane is exactly a point. And moreover, the z are binned with 5 bins and in each bin the point is displayed by a specific color.  

How can I do that ?    

I can only think of TH2F and use SetBinContent. But the effect is not so satisfactory.  

Thanks in advance !  

Best Regards,
Xianguo  

-- 
Take flight into the sky, beyond the moon, beyond my mind.

Xianguo LU
Physics Department, Peking University
Beijing, China
Tel: 0086-10-62753888(o) 
Received on Mon Jun 11 2007 - 15:28:39 CEST

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