What is TCutG really doing?

From: Jaroslav Bielcik (bielcik@lepc10.gsi.de)
Date: Mon Jan 11 1999 - 17:32:20 MET 

Hello rooters

I wanted to use graphical cut as I understand it in a common sense, it
means to choose points of histogram inside graphicaly defined polygone.
But you claim that it is not implemented (in roottalk). 

Can you help me to understand what in that case is TCutG doing if I
put it as the selection in Draw function in 2dim histogram.

E.g.:
T.Draw("x:y") will give me 2dim histogram 

I make cutg1 polygone on this 2dim histogram and 

T.Draw("x:y","cutg1") gives me something but I do not know what really.

                       With best regards 

                                         Jaroslav Bielcik
                                          GSI Darmstadt

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