Re: Modifying axis labels

From: Otto Schaile (Otto.Schaile@Physik.uni-muenchen.de)
Date: Tue Mar 23 1999 - 10:42:38 MET


On Mon, 22 Mar 1999, Matthew R. Nelson wrote:

> I am looking for a way to customize the axis labels of a TGraph() object. 
> I want to change them from showing negative values to positive values, e.g.
> 
> -----|-----|-----|-----|       ->      -----|-----|-----|-----|
>     -30   -20   -10    0                   30    20    10     0
> 
> I've gone through the options on TAxis, TAttAxis and TGaxis, but can find
> no way to gain direct axis to the labels created.  Any suggestions?  An
> alternative solution could include being able to actually reverse the axis
> as shown in the above example, which is my ultimate goal.

Hi Matt,
as far as I understand what you ask for is in Rene's pipeline (see
roottalk: RootTalk: Re: Text Axis Labels of 02 Oct, 1998 and
also the still empty SetLabel(Text_t* label) etc. in TAxis)

Unfortunately you want to change the label to decreasing values,
otherwise you could simply use

 Set(Int_t nbins, Axis_t xmin, Axis_t xmax) 
 but this needs xmin < xmax

Cheers,
Otto
----------------------------------------------------------------------------
Otto Schaile                    Sektion Physik der LMU Muenchen
Phone: (+49 89)289 14070        Am Coulombwall 1, D-85748 Garching, Germany
FAX:   (+49 89)289 14072        EMail: Otto.Schaile@Physik.Uni-Muenchen.DE



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