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Re: XSTRETCH in P.Multi - is it efficient? [message #30135]

Sat, 06 April 2002 07:49

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

K.Y.Choi@soton.ac.uk (Reno Choi) writes:

> Now, I am trying to make widget program that contains two plot with a
> image. I also would like to include mouse-oriented indication bar in
> both plot area, which synchronise with the position of the image. I
> guess it would be based on something like XSTRETCH.pro from D.Fanning.
>
> Question are, if I put those plots and image in a simgle Widget_Draw,
> would it become much slower while interactive moving lines on plots
> are moving? I wonder this is one of reason why XSTRETCH.pro has two
> windows, i.e. two TLB.
>

I think the advantage to have two draw widgets is that you can select
coordinates in both plots simultaneously. There can only be one
active coordinate system in a single direct graphics window, so if you
have two plots, a la !P.MULTI, then only one of them will be
interactive.

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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		Re: XSTRETCH in P.Multi - is it efficient? By: Craig Markwardt on Sat, 06 April 2002 07:49
		Re: XSTRETCH in P.Multi - is it efficient? By: David Fanning on Sat, 06 April 2002 07:21

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