Enterria David wrote: > > Hi everybody ! > > I am interested in storing into a vector the (x,y) values of a histogram > point by clicking on it with the mouse. > i.e. I want to know if there exists something in ROOT equivalent to the > PAW instructions: > > vloca x y * > aa=x(1) > bb=y(1) > ... This is implemented via the graphics editor (EDIT pull down menu). Select the item CutG, click on the selected points. You can set a name for the CUTG object (default name is CUTG) by using the context menu. You can get a pointer to the CUTG object in the current pad with a statement like TCutG *cut = (TCutG*)gPad->GetPrimitive("CUTG") Rene Brun
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