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Re: A question about map projection [message #61991 is a reply to message #61990]

Sun, 17 August 2008 17:43

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

xiao writes:

> HI~ All ~ I am trying to a image in Polar Stereographic projection but
> it is not in the right position. My code is like this: And when I
> tried to change the values of lat_min, lon_min ,lat_max and lon_max,
> it does not help much. And I think i have to rotate the map or the
> data with some angle. How can I full that ?

Well, I can't tell about rotation, but the image is certainly
not being positioned like you think it is, because you
have crippled TVIMAGE by setting the TV keyword. So
all the POSITION information is being ignored and it
is acting like the smart TV command ITTVIS should implement.

Try unsetting the TV keyword and see what happens.

Cheers,

David

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

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[Message index]

		Re: A question about map projection By: David Fanning on Sun, 17 August 2008 18:37
		Re: A question about map projection By: xiao zhang on Sun, 17 August 2008 18:27
		Re: A question about map projection By: David Fanning on Sun, 17 August 2008 17:43

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