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Re: Mouse-Over or Mouse-Click Values of Coordinates in Plot in Manipulate

  • To: mathgroup at smc.vnet.net
  • Subject: [mg103642] Re: Mouse-Over or Mouse-Click Values of Coordinates in Plot in Manipulate
  • From: "Nasser Abbasi" <nma at 12000.org>
  • Date: Thu, 1 Oct 2009 06:38:13 -0400 (EDT)
  • References: <h9srm3$p3g$1@smc.vnet.net>

"Gregory Lypny" <gregory.lypny at videotron.ca> wrote in message 
news:h9srm3$p3g$1 at smc.vnet.net...
> Hello everyone,
>
> Is there a way to include in Manipulate something like a tooltip,
> where the coordinates of a point in a plot appear where the user clicks.
>
> Regards,
>
> Gregory
>

I know how to do it with discrete data. Here is an example

data = Table[Tooltip[Sin[x]], {x, -Pi, Pi, Pi/100.}];
ListPlot[data, Joined -> True]

And now if you move the mouse over the plot, the y-value (i.e. sin(x) ) 
value will be displayed, here is a screen shot
http://12000.org/tmp/093009/tooltip.PNG

But with the direct plot command, I still can't figure it

Plot[Tooltip[Sin[x]], {x, -Pi, Pi}]

will display "Sin[x]", instead of the current value of it. As shown here:
http://12000.org/tmp/093009/tooltip2.PNG

I tried using Dynamics and Annotation with Mousover to get it to work, but 
no luck. I am sure some Mathematica expert here will have an answer on how 
to do it with a direct plot command instead of discrete plot.

--Nasser




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