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Re: rough lines in IDL graphic window [message #46391 is a reply to message #46390]

Mon, 14 November 2005 10:47

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

arctorit@yahoo.com writes:

> I have a 2D field of which I make contour lines. On the graphic window
> this contour lines
> appear quite rough, i.e. they seem to be formed by small rods one after
> the other.
> When I print this to a PS file, the lines become magically smooth and
> very nice to look at.
>
> Usually I don't care that much about this problem, but as now I would
> like to do a movie,
> starting from graphic window dumps, I would like to have the same
> smooth lines also
> in the graphic window.
>
> If someone can resolve this puzzle.................

Well, clearly the "problem" is resolution. You could try
smoothing the data before you contour it on your display.
Or, you could even try resizing your data set before you
contour it on your display. Be sure to set the /INTERP
keyword on CONGRID, or this won't help.

In either case, you are changing the data, of course, so
you have to decide if aesthetic concerns are more important
than scientific concerns. :-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: rough lines in IDL graphic window By: David Fanning on Tue, 15 November 2005 08:35
		Re: rough lines in IDL graphic window By: franco on Tue, 15 November 2005 04:20
		Re: rough lines in IDL graphic window By: Rick Towler on Mon, 14 November 2005 14:40
		Re: rough lines in IDL graphic window By: David Fanning on Mon, 14 November 2005 10:47

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