Gerry and Henrik have the right answer. Your computer monitor isn't
capable of displaying 20 million points, and Flash will hang, as you
have found out.
This is untested e-mail AS3, but I would do it something like this:
var pointX:Vector.<Number>; //vectors are much faster than arrays
var pointY:Vector.<Number>;
// You have to create the vector in a new code line
pointX = new Vector.<Number>();
pointY = new Vector.<Number>();
ndx:int = 0;
len:int;
// first fill the vectors
for (var i:Number= -10000 ;i<10000;i+=.1)
{
ndx++;
pointX[ndx]=i;
pointY[ndx]=5*Math.sin(20*i);
}
// prepare to draw the graph
graphics.lineStyle(2, 0X000000); //set the line to 2 pixels wide, black
graphics.moveTo(pointX[0], pointY[0]); // move to the starting point
len = pointX.length + 1;
// Now draw the graph
for (x = 1; x<= len; x++)
{
graphics.curveTo(pointX[x], pointY[y];
}
There's more you have to do--importing the graphics package, perhaps
putting this all into a class, and so on. There are probably minor
bugs in the code you'll have to fix--this is just off the top of my
head. I think you will be much happier with performance and appearance
with something like this, though.
Cordially,
Kerry Thompson
On Mon, Aug 22, 2011 at 4:49 AM, nasim hhhhh <iranebah...@yahoo.com> wrote:
> but the most problem is for loop i think flash dont do any thing until the
> loop finishde
> i need to use smal step because if the step is big the graph will be show
> like line to line , it s ugly graph
> and the distance that i use for loop is more importatnt for me i want to show
> 2*10^8 distance / i want to make point in my program and plot it one by one i
> make i plot
> i make i plot
> is there better way?
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