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Re: IDL 8.0.1 now available [message #73253 is a reply to message #73252]

Thu, 28 October 2010 16:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Chris Torrence writes:

> My favorite new features - Box axes on maps, thick < 1, and the Arrow
> function:
>
> m = Map('Mercator', /BOX_AXES, LABEL_POSITION=0, $
> LIMIT=[-60,0,60,360], FILL_COLOR='light blue', $
> THICK=0.5, DIMENSIONS=[800,400])
> m1 = MapContinents(FILL_COLOR='green', THICK=0.5)
>
> a = Arrow([230,255],[0,40], /DATA, HEAD_SIZE=0.5)
> a = Arrow([190,203],[-20,19], /DATA, HEAD_SIZE=0.5)
>
> t = Text(230,-10,'Boulder', /DATA, ALIGNMENT=0.5)
> t = Text(190,-28,'Hawaii', /DATA, ALIGNMENT=0.7)

Chris,

These look great, but I notice some strange behavior.
When I move my cursor in the vertical grid where the
letters "Boulder" are, for example, the "position" in
the lower-right corner of the window is only periodically
in map coordinates. Most of the time it is in pixel
coordinates. Is there a reason for this? While I'm inside
the map, shouldn't I always get map coordinates?

It looks to me like if I get "close" to a line I get
map coordinates. Is this intentional? Does this mean
I need to wrap all my maps in a very fine-mesh grid
to get map locations?

Horizontal lines appear to react differently than
vertical lines. Strange.

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: IDL 8.0.1 now available By: David Fanning on Fri, 29 October 2010 09:42
		Re: IDL 8.0.1 now available By: bokubo on Fri, 29 October 2010 09:30
		Re: IDL 8.0.1 now available By: David Fanning on Thu, 28 October 2010 17:08
		Re: IDL 8.0.1 now available By: David Fanning on Thu, 28 October 2010 16:54
		Re: IDL 8.0.1 now available By: penteado on Thu, 28 October 2010 16:54
		Re: IDL 8.0.1 now available By: David Fanning on Thu, 28 October 2010 16:46
		Re: IDL 8.0.1 now available By: penteado on Thu, 28 October 2010 16:34
		Re: IDL 8.0.1 now available By: Mark Piper on Thu, 28 October 2010 16:24
		Re: IDL 8.0.1 now available By: David Fanning on Thu, 28 October 2010 16:09
		Re: IDL 8.0.1 now available By: David Fanning on Thu, 28 October 2010 16:04
		Re: IDL 8.0.1 now available By: chris_torrence@NOSPAM on Thu, 28 October 2010 15:53
		Re: IDL 8.0.1 now available By: Paul Van Delst[1] on Thu, 28 October 2010 15:03
		Re: IDL 8.0.1 now available By: David Fanning on Thu, 28 October 2010 14:43

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