Hi Rene - it doesn't seem to work. I have some results (the turquoise line is the cut line): http://www.hep.caltech.edu/~edward/NuepPlot.ps and the code is at: http://www.hep.caltech.edu/~edward/doSeries.cc Thanks. -Ed On Fri, 6 Sep 2002, Rene Brun wrote: > Hi Ed, > > do: > new TLine(xcut,gPad->GetUymin(),xcut,gPad->GetUymax()); > > Rene Brun > > On Thu, 5 Sep 2002, Edward Chen wrote: > > > Hi - yet another question: > > > > I'm trying to draw TLines on top of either TH1F's or THStack's. The lines > > are vertical lines which indicate the position of a cut, for example. I'd > > like the line to extend from the low horizontal edge of the histo box to > > the upper horizontal edge of the histo box. > > > > The lower edge will always have a Y coordinate of 0, so that's no problem. > > > > But I can't seem to figure out a way to get automatically the Y coordinate > > of the upper edge. For example using THStack::getMaximum seems to return > > the maximum, but not the coordinate of the upper horizontal edge. Using > > TH1F::getMaximum or TH1F::getMaximumStored also doesn't give satisfactory > > results either. > > > > Thanks in advance, > > > > -Ed > > > >
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