On Thu, 8 Feb 2001, Alexander Cherlin wrote: > Dear rooters! > How can I draw lines and circles on top of the histograms? You can interactively select the Menu Edit->Editor. Then you get a self-explaining toobox with wich you can put objects on you already draw histo. Then, just use the File->Save As canvas.C and have a look on the generated file : You'll get full code of what you just interactively done. At that point, you can go to the ROOT Class & Member Reference Guide to perfect your knowledge of the Class (TLine, TEllipse etc) you just discovered. Yannick
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