| Arrows in IDL [message #4006] |
Fri, 21 April 1995 00:00  |
VUKOVIC
Messages: 6
Registered: December 1994
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Junior Member |
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Hi
I got some plots with IDL, and I would like to draw some arrows on them
to point things out, or ... Ideally, the arrows could be curved.
I was thinking using a technique like Bezier interpolation where one
gives the two endpoints and with a third point controls the amount of
curvature of the line.
Any pointers to a library of such things?
many thanks,
Mirko
Mirko Vukovic | vukovic@uwmfe.neep.wisc.edu
Dept. of Nucl. Eng. and Eng. Phys. | mvukovic@wiscmacc.bitnet
U of Wisconsin -- Madison | phone: (608) 265-4069
1500 Johnson Drive; Madison WI 53706| fax: (608) 265-2364
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| Re: Arrows in IDL [message #4079 is a reply to message #4006] |
Tue, 25 April 1995 00:00  |
larkum
Messages: 21
Registered: May 1993
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Junior Member |
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In article tha@news.doit.wisc.edu, VUKOVIC@uwmfe.neep.wisc.edu (Mirko Vukovic) writes:
> Hi
>
> I got some plots with IDL, and I would like to draw some arrows on them
> to point things out, or ... Ideally, the arrows could be curved.
> I was thinking using a technique like Bezier interpolation where one
> gives the two endpoints and with a third point controls the amount of
> curvature of the line.
>
> Any pointers to a library of such things?
>
> many thanks,
>
> Mirko
The JHUAPL library (nansen.jhuapl.edu) has a routine called ANN for
adding annotations written by Ray Sterner. That can do arrows but
not bezier ones. I've written a routine to make bezier curves but
not arrows, which you can have if you'd like to play around with that.
Matthew.
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