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Re: Re: Cursors in graphics

• To: mathgroup at smc.vnet.net
• Subject: [mg39596] Re: [mg39578] Re: Cursors in graphics
• From: Garry Helzer <gah at math.umd.edu>
• Date: Tue, 25 Feb 2003 02:57:04 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

Yes, but the feature is broken in the recently released patch 4.2.1.1 
for Mac OS X.

On Monday, February 24, 2003, at 03:10  AM, Bill Rowe wrote:

> On 2/23/03 at 4:59 AM, yas at pcomm.hfi.unimelb.edu.au (Y.A.Tesiram)
> wrote:
>
>> 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.
>
> It sounds like what you are trying to do is determine the coordinates 
> of a point on a graph. If so, try the following (with Mathematica 
> running on a Mac):
>
> Select the plot
> Hold down the cmd key and move the cursor over the plot.
>
> You will see the cursor change into cross hairs and the coordinates 
> will appear at the bottom of the window on the left hand side.
>
> There is a similar proceedure for Mathematica running under Windows, 
> but I don't recall the key that needs to be held down. It should be 
> either the cntrol, alt or Windows key.
>
>
Garry Helzer
Department of  Mathematics
University of Maryland
1303 Math Bldg
College Park, MD 20742-4015