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Re: about contour [message #36773 is a reply to message #28256]

Wed, 29 October 2003 01:22

Chris Lee
Messages: 101
Registered: August 2003

Senior Member

In article <eceee805.0310282257.1de74ee3@posting.google.com>, "Park Kyung
Won" <parkkw@mail1.pknu.ac.kr> wrote:

> Hello
> I want to draw contour.
> Array must be 2 dimension.
> I have ground rainfall data and longitute,latitute data about weather
> station. This data is all 1 dimension data.
> rainfall(300)
> longitute(300)
> latitute(300)
> How can I draw using contour?

Hi,

I'm guessing you want to do a spherical triangulation (instead of a
'regular' triangulation).

Use SPH_SCAT...e.g.

r = SPH_SCAT(longitude, latitude, rainfall, BOUNDS=[0, -90, 360, 90], $
GS=[10,5], gout=gout,bout=bout)

;gout and bout contain the information about the new regular grid,
; stored in r.
;GS is the grid resolution in degrees

x=findgen((gout[0]+bout[2]-bout[0])/gout[0])*gout[0]+bout[0]
y=findgen((gout[1]+bout[3]-bout[1])/gout[1])*gout[1]+bout[1]
contour, r, x,y

;;;;;;;

If you do want a non-spherical triangulation, use TRIANGULATE and
TRIGRID, the help file can tell you how to use them much better than I
can.

Chris.

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[Message index]

		about contour By: tom on Tue, 27 November 2001 16:49
		Re: about contour By: Chris Lee on Wed, 29 October 2003 01:22
		Re: about contour By: Chris[1] on Wed, 29 October 2003 12:56
		Re: about contour By: btt on Fri, 31 October 2003 06:08
		Re: about contour By: Chris Lee on Thu, 30 October 2003 01:13
		Re: about contour By: Chris Lee on Thu, 30 October 2003 01:06
		Re: about contour By: parkkw on Wed, 29 October 2003 21:03

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