Hi rooters, Is there a possibility to generalize the TCutG class so that it could describe any funny closed line on a 2D plot? For example if I have a function (which would be too long or impossible to write as a selection string), and I want to cut a band around this function, it would be easy to have the possibility to derive a class from TCutG, and overwrite it's IsInside function: class MyCut : public TCutG { public: Int_t IsInside(Double_t x,Double_t y) { if(fabs(funny_function(x) - y) < 0.4) return 1; return 0; } }; Is it possible to do something like this? Thanks Daniel
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