comp.lang.idl-pvwave archive
Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado

Home » Public Forums » archive » Arrows in IDL
Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend 
Switch to threaded view of this topic Create a new topic Submit Reply
Arrows in IDL [message #4006] Fri, 21 April 1995 00:00 Go to next message
VUKOVIC is currently offline  VUKOVIC
Messages: 6
Registered: December 1994
Junior Member
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
Re: Arrows in IDL [message #4079 is a reply to message #4006] Tue, 25 April 1995 00:00 Go to previous message
larkum is currently offline  larkum
Messages: 21
Registered: May 1993
Junior Member
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.
  Switch to threaded view of this topic Create a new topic Submit Reply
Previous Topic: doing !p.multi shade_surf plots in a page
Next Topic: Minimum/Maximum over a certain dimension

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Wed Oct 08 19:39:22 PDT 2025

Total time taken to generate the page: 0.00578 seconds