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Function Graphics Map Projection Woes [message #77678]

Mon, 19 September 2011 07:30

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Folks,

Sigh...

OK, I'm on to my next topic on my list in my effort
to learn about function graphics: map projections.

Can anyone explain to me why this code only shows
the Northern hemisphere?

data = Dist(200)
imgObj = Image(data, limit=[-90,-180,90, 180], $
grid_units=2, $
map_projection='Equirectangular')

Does *anything* in function graphics work correctly!?

Cheers,

David

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

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Re: Function Graphics Map Projection Woes [message #77743 is a reply to message #77678]

Tue, 20 September 2011 20:17

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> The article is available here:
>
> http://www.idlcoyote.com/ng_tips/imgmap.php
>
> There are still a few open questions about all of this,
> so if you have any answers, I'm all ears. :-)

Has anyone tried this code? I'm getting reports that
the resizing of the window breaks everything in
IDL 8.0.1. Just trying to confirm.

Cheers,

David

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

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Re: Function Graphics Map Projection Woes [message #77746 is a reply to message #77678]

Tue, 20 September 2011 11:24

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> I'm working on an article that will explain what I know
> about this topic now. It should be available later today.

The article is available here:

http://www.idlcoyote.com/ng_tips/imgmap.php

There are still a few open questions about all of this,
so if you have any answers, I'm all ears. :-)

Cheers,

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

Report message to a moderator

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