| IDL 8.0 Contour function artifact [message #72566] |
Fri, 24 September 2010 09:44  |
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Paul[3]
Messages: 18
Registered: September 2010
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Junior Member |
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I've noticed an irritating - I'm going to say it's an artifact - in
the new contour function. Take
myData = [[32.7759, 30.8012, 27.8589, 24.6717, 22.2133, 20.4595,
19.0960, 18.1344, 17.4240, 16.8068, 16.2542], $
[19.7536, 18.1935, 16.3065, 14.5951, 13.7175, 13.4065, 13.3468,
13.6542, 14.1716, 14.7347, 15.3102]]
CONTOUR, myData
!null = CONTOUR(myData)
You get it, too? Ideas? (If you're not seeing it, the contour function
on my machines here creates a bit of a jagged mess, while the contour
procedure plots nice, smooth lines.)
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| Re: IDL 8.0 Contour function artifact [message #72702 is a reply to message #72566] |
Sun, 26 September 2010 07:38  |
fburton
Messages: 19
Registered: June 2003
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Junior Member |
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In article <2e9c93fd-97d3-4025-9143-7a15f4895222@m1g2000vbh.googlegroups.com>,
Paul <paulstaten@gmail.com> wrote:
> I've noticed an irritating - I'm going to say it's an artifact - in
> the new contour function. Take
>
> myData = [[32.7759, 30.8012, 27.8589, 24.6717, 22.2133, 20.4595,
> 19.0960, 18.1344, 17.4240, 16.8068, 16.2542], $
> [19.7536, 18.1935, 16.3065, 14.5951, 13.7175, 13.4065, 13.3468,
> 13.6542, 14.1716, 14.7347, 15.3102]]
> CONTOUR, myData
> !null = CONTOUR(myData)
>
> You get it, too? Ideas? (If you're not seeing it, the contour function
> on my machines here creates a bit of a jagged mess, while the contour
> procedure plots nice, smooth lines.)
What algorithms are used in these two cases? Are they anything
like the ones described here
http://www.fhi-berlin.mpg.de/~gnz/pub/preusser.html ?
Francis
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