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Re: locator


On Jul 13, 2:19 am, Heike Gramberg <heike.gramb... at gmail.com> wrote:
> I'm not sure what it is what you're asking for, but if you want to use a locator to trace a curve you can do something like
>
> Module[{p = {0, 1}, temp},
>  temp[t_] := Exp[- t];
>  Row[{
>    LocatorPane[Dynamic[p, (p[[2]] = temp[#[[1]]]; p[[1]] = #[[1]]) &],
>      Plot[temp[t], {t, 0, 5}, PlotRange -> {Automatic, {0, 1}},
>      ImageSize -> 400],
>     {{0, 0}, {5, 1}}],
>    Dynamic[Grid[{{"Time:", p[[1]]}, {"Temp:", p[[2]]}}]]}]]
>
> Heike.
>
> On 12 Jul 2011, at 11:59, raga wrote:
>
> > hi,
> > i created a front end in mathematica which provides the user the
> > independence of providing the input to the code  and my code plots the
> > graph for variation of temperature with time for newtons law of
> > cooling but can any body please help me out by telling how to use a
> > locator to locate the individual points which shows the respective
> > temperature on the graph

Would the "Drawing Tools" under "Graphics" be of help. I find it
useful when I want to locate the coordinates on Plots.

Gary Wardall


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