Could you send me evidence that the option (cont List) returning a list of TGraphs does not work (C++ macro and a Root file)? Rene Brun On Mon, 5 Aug 2002, Giacomo Bruno wrote: > > Hi > I would like to draw a 2-d histogram in contour format showing the levels > with lines of different colours. I get the lines as expected, but then I > would also like to draw a legend. > To this aim I need to retrieve in some way the colours id > of the lines. On the user's guide 3.02 at page 42 it is explained how to > access the TGraph objects that are created when drawing a contour plot, however when I > tried it everything happened (sometimes crashes, sometimes wrong results and > almost always running the same code gave different results). I was then obliged to > guess the colours and set them by hand. Does anyone have an idea on how to > solve this problem? > Thanks in advance > > cheers > Giacomo > > > > ----------------------------------------- > | Giacomo BRUNO | > | | > | CERN | > | EP Division | > | | > | mail: 40-2-B20 | > | C.E.R.N. | > | CH - 1211 Geneva 23 | > | Switzerland | > | e-mail: Giacomo.Bruno@cern.ch | > | phone: +41 22 76 71624 | > ----------------------------------------- > > >
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