Hi, Meanwhile I have a small naive idea : what Isuchiya wanted to do is just a mirror plot according to the zero-axis, I think in this way a multiplication of the function by "-" will do the job. Cheers, Faouzi F. Attallah GSI mbH Planckstr 1 D-64291 Darmstadt Tel: +49 (0)6159 71 2743 Fax: +49 (0)6159 71 2901 Email: F.Attallah@gsi.de Home: +49 (0)6150 980 807 On Thu, 5 Jul 2001, Rene Brun wrote: > Hi Harufumi, > > Plotting downwards is not implemented. > Support for this feature could be implemented for simple cases (TGraph or TH1) > However, objects of these types with error bars and associated functions, > annotations, log scales, etc would be more complex to support. > The only solution that I see is to have this logic at the TPad level, but > it would have side-effects for the annotations. > > Rene Brun > > Harufumi Tsuchiya wrote: > > > > Hi Rooters, > > > > I have the data from 14.0 to 28 along y axis and > > I would like to plot the data from 28 to 14. > > I succeeded in showing the decreasing number on y axis, > > using TGaxis sample. > > But, in this case, data points is plotted from 14 to 28. > > > > Here, I have a question. > > Must I modify the original data points for plotting > > on correct position or Is there a elegant way to make such > > a plot using ROOT class ? > > > > Tkank for you helps. > > > > Harufumi Tsuchiya. >
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