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Re: contour outside the limits [message #45482 is a reply to message #45471]

Thu, 15 September 2005 10:35

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

lajam@caramail.com writes:

> I'm using the contour function to draw values on a sub-region of a map.
> The problem is that I obtain contour outside the limits I have defined.
> I read the idl guide and went on this group but I didn't find the right
> way to draw the contour. I have contour outside the limits only on one
> side of my sub-region for the region between (-10.5E;-41.5E) and
> latitude=57.5N. Hereafter my code:
>
> nlevels=24
> labels=fltarr(nlevels)
> limits=[40,-60,80,0]
> colors = fltarr(nlevels)
> for i = 0, nlevels-1 do begin
> colors(i) = 10 + i * (229-20) / (nlevels-1)
> endfor
> labels=[-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 ,20,21,22]
> map_set, /cylindrical, color=white, /noerase, /continents,
> Limit=limits, xmargin=5, ymargin=10
> map_continents, color = black, mlinethick= 2.0
> map_grid,/box_axes
>
> x=sst_nadr[1,*] ; the longitude between -10.5E and -41.5E
> y=sst_nadr[2,*] ; the latitude between 44.5N and 57.5N
> sst=transpose(sst_nadr[3,*]) ; the values
> contour,sst,x,y, levels = labels, c_colors = colors, /overplot,
> /cell_fill, /irregular
>
>
> Does anybody have an idea of the "bug"?

XSTYLE=1 and YSTYLE=1 keywords are missing on your Contour
command. Does anybody else really like automatic axis scaling? :-(

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: contour outside the limits By: lajam on Fri, 16 September 2005 08:18
		Re: contour outside the limits By: btt on Fri, 16 September 2005 06:45
		Re: contour outside the limits By: David Fanning on Fri, 16 September 2005 05:54
		Re: contour outside the limits By: lajam on Fri, 16 September 2005 01:33
		Re: contour outside the limits By: David Fanning on Thu, 15 September 2005 10:35

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