Re: [Nplot-devel] mouseover text on plot

[Ben G. <jes...@je...>]

Ah, ok. I see your difficulty. I don't recall seeing any built-in way to
determine if the cursor is over a data point. (Although that doesn't mean
it's not there :)).

Assuming it's not, you'll probably have to do your own "hit test" to
determine this. There are various functions which allow you to translate
between world and physical coordinates, which you may find helpful.

I'm kinda surprised it doesn't have support for that.. I may just not have
run across that functionality yet :)


On Tue, Jul 1, 2008 at 3:00 PM, MT <mt...@ya...> wrote:

> Thanks Ben for replying.  I did see that function in Windows.PlotSurface2D.
>  However, how would I know if I am mousing over a chart series or not?  In
> other words the mouse over will be different if I am hovering over a
> candlestick vs if I am in empty space in the chart (i.e. not hovering over a
> series)
>
> Any ideas?
>
>
>
> ----- Original Message ----
> From: Ben Gruver <jes...@je...>
> To: npl...@li...
> Sent: Tuesday, July 1, 2008 2:33:04 PM
> Subject: Re: [Nplot-devel] mouseover text on plot
>
> I think you'll need to modify the nplot source to do this, but it shouldn't
> be difficult. Take a look at Windows.PlotSurface2D.DoMouseMove.
>
>
>
> On Tue, Jul 1, 2008 at 1:47 PM, MT <mt...@ya...> wrote:
>
> >
> > Is there a way to change the mouseover text when hovering over a series
> > element.  For example, if the mouse is over a candlestick, I would like
> to
> > display the high, low, open, close, volume, date value, etc..  It seems
> that
> > i can only display world coordinates.
> >
> > Thanks
> >
> > mt
> >
> >
> >
> >
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