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Re: Problem running example mapping program from exelisvis website [message #83329 is a reply to message #83322]

Fri, 22 February 2013 05:13

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Tom Grydeland writes:

>
> I'm trying to run the demo code from
>
> http://www.exelisvis.com/docs/ImageWithMapProjection.html
>
> and I'm stumbling on the first call to MAP():
>
> IDL> m = map('Mercator', /buffer, semimajor_axis=6378137d, semiminor_axis=6378137d)
> % Incorrect number of arguments.

I can't run that code either on my Windows machine, but I get though the
line above and crash on this one:

im = IMAGE(img, GRID_UNITS='meters', $
MAP_PROJECTION='Mercator', $
SEMIMAJOR_AXIS=6378137d, SEMIMINOR_AXIS=6378137d, $
DIMENSIONS=[800, 800], $
LIMIT=[lonlat0[1], lonlat0[0], lonlat1[1], lonlat1[0]], $
IMAGE_LOCATION=[x0, y0], $
IMAGE_DIMENSIONS=[deltax, deltay])

Where the lonlat variables are undefined.

Nevertheless, I did use this example as the basis for the OpenStreetMap
plot example in the Coyote Gallery. The code there works. :-)

http://www.idlcoyote.com/gallery/

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Problem running example mapping program from exelisvis website By: lecacheux.alain on Tue, 26 February 2013 08:10
		Re: Problem running example mapping program from exelisvis website By: tom.grydeland on Tue, 26 February 2013 06:12
		Re: Problem running example mapping program from exelisvis website By: David Fanning on Mon, 25 February 2013 06:06
		Re: Problem running example mapping program from exelisvis website By: tom.grydeland on Mon, 25 February 2013 05:22
		Re: Problem running example mapping program from exelisvis website By: chris_torrence@NOSPAM on Fri, 22 February 2013 07:54
		Re: Problem running example mapping program from exelisvis website By: David Fanning on Fri, 22 February 2013 05:13
		Re: Problem running example mapping program from exelisvis website By: Mark Piper on Thu, 28 February 2013 06:21

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