Andy, It is not clear what you want to do? 2-D geometry modelling, 3-D? For 3_d modelling, you should use a geometry package such as TGeo classes, see http://root.cern.ch/root/doc/RootDoc.html. For 2-D modelling, you can use a TCutg to create a set of points n,x,y delimiting an area. See examples in the tutorials, eg fit2a.C, fit2D.C A TCutG object can be created interactively with the graphics editor. Rene Brun On Tue, 15 Jun 2004 amccormi@uiuc.edu wrote: > Hi, I`m a summer SULI student working on the Phoenix project > at BNL. I`m working on a magnetic field mapping, and my mentor > suggested I start by modeling the metal plate upon which we > are going to place the hall probes by using cuts in ROOT. > However, I`ve found the documentation on TCut and TCutG not to > really be all that enlightening -- if someone could give me a > small example of how to properly use a cut to construct an > object I would appreciate it. > > Thanks, Andy >
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