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MathGroup Archive 2003

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Cursors in graphics

  • To: mathgroup at smc.vnet.net
  • Subject: [mg39552] Cursors in graphics
  • From: "Y.A.Tesiram" <yas at pcomm.hfi.unimelb.edu.au>
  • Date: Sun, 23 Feb 2003 04:59:45 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Dear Mathgroup,
This question may have come up before and I searched the archives but
could not find anything specific. This is new ground for me so I am a
little lost on what options are available to me.
I want to add cross-hairs to graphics so that I can navigate along a plot
which is the result of say MultipleListPlot or ListPlot. Currently, I have
just made functions that let me replot my plots close to the regions I'm
interested in and I "guesstimate" the coordinates by drawing a fine grid.
Another method I tried was a recursive algorithm using NestList to hone in
on a particular value. Unfortunately the plots are not always smooth and
well behaved in the region of interest. Cross-hairs would be a better
option. Can someone point me in the right direction please. J/Link? ... but which
way. Is there something that I can do from the Mathematica side or do I
have to grab the numbers from Mathematica and re-draw it using a Java
program.
Thanks
Yas



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