new Point(x,y);

[focor]

function setPoint(){
var points:Array=[[0],[0]];
var count:Number=-1;
var tubeNum:Number=0;
//var p1:Point=new Point();
//var p2:Point=new Point();
this.createEmptyMovieClip("canvas_mc", this.getNextHighestDepth());
var mouseListener:Object = new Object();
mouseListener.onMouseDown = function() {
    //this.isDrawing = true;
	if (tubeNum!=0){
		break;
	}else{
	count++;
	points[count][0]=_xmouse;
	points[count][1]=_ymouse;
	this.target_mc=canvas_mc.attachMovie("tubeEnd","tubeEnd"+count,canvas_mc.getNextHighestDepth(),{_x:_xmouse,_y:_ymouse});
	}// this.target_mc = canvas_mc.createEmptyMovieClip("", canvas_mc.getNextHighestDepth());
};
mouseListener.onMouseMove = function() {
	tubeNum=0;
	
   for (var i=0;i<=count;i++){
	//p2=new Point(_xmouse,_ymouse);
	if (Point.distance(new Point(points[i][0],points[i][1]),new Point(_xmouse,_ymouse))<50){
	tubeNum=i; 
	trace(i+"#"+count);
   }}
        
};

здесь points[][]-двумерный массив с координатами точки.
count-колличество точек
почему с 3й точки Point.distance не работает?

[iNils]

Строчку

var points:Array = [[0], [0]];

заменить на

var points:Array = [];

строчку

count++;

на

count++;
points[count] = [];

[focor]

спасибо.Помогло.