Interacting with sine graph

HI all Im new to java and was wondering if anyone could help me with this problem.
Im trying to draw a sine wave that also allows me to click on aont point withing the graph and mark it with a dot or cross of some kind and in a text box display the coordinates of that position. Can anyone help me on what i need and how it can be done please.
Thank you very much

hi, here is one way you can get this to work...
I'm assuming that you'ore drawing the sine points as some sort of Shape object. In that case all you need is to add a MouseMotionListener to your Container (probably a JPanel) where you draw your graph. Shape objects have a contains() method which will tell you if a point (i.e. the cords of the mouse pointer) are within the shape or not. So, in you motion listener, you just need to compare the cords of the pointer with the cords of all the Shapes that you drew. If there is a match, then use some Popup element to display the data values for that point on your graph.
There are more complicated (and faster) ways of doing this, but this should give you a good start.
If you trying to draw an image (graph) then look at the java2d tutorials which show you how to draw shapes and lines.

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"Rod B. Nussbaumer" wrote in message
news:afal8d$37q$[email protected]..
> My application uses a Waveform Graph to plot data acquired from a
> scope. The application does some analysis of the waveform data
> and then uses features within the waveform as the basis for
> controlling some external devices. The features (peaks) that
> are to be used must be selected by a human operator. Ideally,
> this would be d
one by having the user click on/near the peaks
> of interest.
>
> I haven't seen anything in Labview that looks like I can trap
> mouse clicks within a screen widget. Have I missed that level
> of functionality, or is there no feasible way of implementing
> such an interface?
>
> I am presently using a system of tables and sliders to allow
> the users to select peaks, but the users are not totally happy
> with the method.
>
> I am using Labview 5.1 on Sun Solaris.
>
> Thanks.
>
> --- Rod
>
>

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Interacting with sine graph

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