wplot_zoomout

           Button to enlarge view of data

           cafe

           +zoomout+

           wplot button

           "zoom out"

           This buttons action will enlarge the displayed
           x-range. It will be assured that the range is either
           1,2,5 times a power of 10.
           Example: The xrange is 5*10^3 -> zoom out will set the
           x range at 1*10^4.
           This allows an almost equal scaled plot for different
           data sets.

           /t3d - zoom the y axis as well as the x axis.

           Changes xrange of displayed plot (affects yrange also when
           t3d selected).

           $Id: cafe_wplot_zoomout.pro,v 1.16 2003/11/05 15:08:36 goehler Exp $

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