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Reversing y-axis using label_date [message #89721]

Wed, 19 November 2014 23:13

greer.katelynn
Messages: 5
Registered: December 2008

Junior Member

I am attempting to create a Hovmoller plot of some atmospheric data. The problem is that I want time increasing downward. Usually to reverse the an axis, you just reverse the range in the plot call. Unfortunately, this is resulting in only one date to be plotted. The relevant code is as follows:

cgLoadCT,22,Ncolors=21,Bottom=1,/Brewer
dummy=label_date(DATE_FORMAT=['%D','%M'])
plot,[0,10],[juldates(1),juldates(2)],/nodata,$
xrange=[-180,180],yrange=[juldates(nt-1),juldates(0)],$
ytickunits=['Time','Time'],ytickinterval=2,$
ytickformat='Label_Date',xtitle='Longitude',$
xstyle=1,ystyle=1
contour,w,lon,juldates,$
levels=w_levels,c_colors=Indgen(21),/cell_fill,$
/overplot

Thanks,
Katelynn

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[Message index]

		Reversing y-axis using label_date By: greer.katelynn on Wed, 19 November 2014 23:13
		Re: Reversing y-axis using label_date By: David Fanning on Thu, 20 November 2014 05:13

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