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Re: plot [message #7826 is a reply to message #7517]

Fri, 10 January 1997 00:00

Andy Loughe
Messages: 174
Registered: November 1995

Senior Member

Mark A. Collier wrote:
>
> Hi there,
>
> IDL is new to me. Recently I tried to generate a filled contour plot
> with labels on southern hemisphere by using map_set and contour

<snip>

Try this sample code...

data = dist(46) ; create data
lons = indgen(46)*8. ; longitudes
lats = indgen(46)*4 - 90. ; latitudes
colors = indgen(25)+161 ; or whatever works for your color table

y1 = total(where(lats eq min(lats))) ; SH point
y2 = max(where(lats le 0)) ; Nearest-Equatorial point

map_set, -90, 0, 0, /stereo, limit=[-90,-180,0,180], /iso
contour, data(*,y1:y2), lons, lats(y1:y2), nlevels=25, /follow, /over
contour, data(*,y1:y2), lons, lats(y1:y2), nlevels=25, c_colors=colors,
$
/cell_fill, /over
map_continents
map_grid, latdel=30, londel=30, glinethick=1, lonlab=0

This is not a "perfect" plot, but those are VERY HARD to come by
using IDL mapping routines and with the cheesy contour program they
provide. Very unlike NCAR Graphics, at at 10 times the price!!
What a bargain. ;-(

Analysis? Yes.
Visualization? Maybe.

--
Andrew F. Loughe | afl@cdc.noaa.gov
University of Colorado, CIRES | http://cdc.noaa.gov/~afl
Campus Box 449 | phn:(303)492-0707 fax:(303)497-7013
Boulder, CO 80309-0449 | "If you are going to be blue, be bright
blue!"

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[Message index]

		plotting tool By: craig stevens on Tue, 26 November 1996 00:00
		Re: plotting tool By: James Tappin on Thu, 05 December 1996 00:00
		Re: plotting tool By: Mark Hadfield on Thu, 05 December 1996 00:00
		Re: plotting tool By: Robert Moss on Tue, 03 December 1996 00:00
		Re: plot By: Andy Loughe on Fri, 10 January 1997 00:00

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