Here you Go!!! 
Author Message
 Here you Go!!!

(i)Have an internal representaion of the data to be plotted
(ex. an array of X,Y values)
Then in the Form_resize event write code to plot the graph from this data.
(ii) For Zooming, its a bit involved:
Write code to draw rectangle. (use the mouse click, move events)
Then trap the mouse move to position the rectangle
Then on Mouse-Up figure out the area covered by the rectangle
Map this with your internal representation.
Redraw the graph
Got it?

> Hi,
>    I am trying to implements a ploting function in my project. I am trying
> use used the picture as my canvas to plot the graph on. What I am trying
> do is that I want to plot the graph which is resizeable and also when the
> user double click or just one left click it be able to zoom into the
> where the user click on.
>    I wonder is there any example where I can have a look on how to do this.
> The reason that I am using the picture box because I have one text box
> below the picture box to display the details of the wave form and other
> stuff. Or is there any free code where I can download and have a look at
> how it is implemented??

> --
> Keat Jau
> Final year Computer Engineering student at
> University of Newcastle

Fri, 10 Mar 2000 03:00:00 GMT  
 [ 1 post ] 

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