comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » plot

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

plot [message #7831]

Fri, 10 January 1997 00:00

collier
Messages: 2
Registered: January 1997

Junior Member

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
(I am using Idl v4.0.1 on a sgi workstation) such as the following. By
default without c_colors, Idl will fill the areas with less grid values by
darker grey colors, with larger values lighter. But idl doesn't fill
all the hemisphere leaving many parts of area white. This is confusing
and misleading, since white filling (actually some of them not filled at all)
means large grid values. I also tried by specifying c_colors to all
contours (see below) but to no avail. For the same data, by using
NCAR graphics one can produce a very good smoothly, continusly shaded,
labeled contours on the hemisphere.

Can anybody tell me how to do this by Idl? (I like using Idl, because
it has good mathematical and statistical functions).

If I change /fill into /cell_fill in the fillowing code as suggested by
the User's Guide P19-14, there will be no filling at all, why?

The max. Nlevels is 29. is there a way of increasing this?

; use Polar Stereographic Projection
!P.FONT=0
map_set, -90,0,0, /stereo,limit=[-90,-180,0,180],title=tit
; contour, dats,los,las,nlevels=25,c_charsize=1.0,/overplot,/fill
contour, dats,los,las,nlevels=25,c_charsize=1.0,/overplot,/fill, $
c_colors=[7*255,240,210,180,150,120,90,12*60]
contour, dats,los,las,nlevels=25,c_charsize=1.0,/follow,/overplot
map_continents, mlinethick=2
map_grid, latdel=30,londel=30,glinethick=2,lonlab=0

I will be very grateful if someone can help me on these questions.
Thanks in advance.

Mozheng Wei
--------------------------------------------------
CSIRO Division of Atmospheric Research
PMB 1, Aspendale
Victoria 3195, Australia

Voice: +61-3-9239-4415; Fax: +61-3-9239-4444
E-mail: mzw@dar.csiro.au
--------------------------------------------------

Report message to a moderator

[Message index]

		plot By: collier on Fri, 10 January 1997 00:00
		Re: plot By: David Fanning on Thu, 20 November 2003 05:52
		Re: plot By: Jeremy Bailin on Sat, 31 October 2009 07:39
		Re: plot By: pgrigis on Fri, 30 October 2009 13:57
		Re: plot By: David Fanning on Fri, 30 October 2009 13:47
		Re: plot By: pgrigis on Fri, 30 October 2009 12:58
		Re: plot By: David Fanning on Fri, 30 October 2009 12:39
		Re: plot By: pgrigis on Fri, 30 October 2009 12:32
		Re: plot By: R.G.Stockwell on Fri, 30 October 2009 11:53
		Re: plot By: Thibault Garel on Fri, 30 October 2009 09:50
		Re: plot By: David Fanning on Fri, 30 October 2009 09:33
		Re: plot By: Thibault Garel on Fri, 30 October 2009 09:23
		Re: plot By: rogass on Mon, 02 November 2009 15:25
		Re: plot By: David Fanning on Fri, 30 October 2009 08:01
		Re: plot By: Thibault Garel on Fri, 30 October 2009 07:25
		Re: plot By: David Fanning on Fri, 30 October 2009 06:06
		Re: plot By: Thibault Garel on Fri, 30 October 2009 05:55
		Re: plot By: David Fanning on Fri, 30 October 2009 05:11
		Re: plot By: pgrigis on Tue, 03 November 2009 06:41
		Re: plot By: greg.addr on Thu, 05 November 2009 03:35
		Re: plot By: rogass on Mon, 30 November 2009 23:56
		Re: plot By: David Fanning on Tue, 01 December 2009 05:08
		Re: Plot By: David Fanning on Fri, 09 December 2011 12:44
		Re: Plot By: David Fanning on Fri, 09 December 2011 12:34
		Re: Plot By: Russell[1] on Fri, 09 December 2011 12:23
		Re: Plot By: d.poreh on Fri, 09 December 2011 11:46
		Re: Plot By: d.poreh on Fri, 09 December 2011 10:28
		Re: Plot By: Russell[1] on Fri, 09 December 2011 08:09
		Re: Plot By: David Fanning on Fri, 09 December 2011 07:38
		Re: Plot By: d.poreh on Tue, 13 December 2011 10:20
		Re: Plot By: d.poreh on Mon, 19 December 2011 05:10
		Re: Plot By: Mark Piper on Tue, 13 December 2011 08:18
		Re: Plot By: d.poreh on Sat, 10 December 2011 06:09
		Re: Plot By: David Fanning on Sat, 10 December 2011 06:39
		Re: plot By: d.poreh on Sat, 21 July 2012 12:59
		Re: plot By: David Fanning on Sat, 21 July 2012 11:10
		Re: plot By: d.poreh on Sat, 21 July 2012 11:01
		Re: plot By: lecacheux.alain on Sat, 21 July 2012 06:44
		Re: plot By: David Fanning on Sat, 21 July 2012 06:14
		Re: Plot By: d.poreh on Fri, 15 February 2013 05:52
		Re: Plot By: David Fanning on Fri, 15 February 2013 05:40

Previous Topic:	Plot
Next Topic:	call_external

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 19:03:47 PDT 2025

Total time taken to generate the page: 0.00502 seconds