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doodle3d-client/www/printmanager/js/Point.js

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var Point = function(x,y) {
if (x===undefined) x = 0;
if (y===undefined) y = 0;
if (isNaN(x) || isNaN(y)) {
console.warning("Point x or y isNaN: ",x,y);
}
this.x = x;
this.y = y;
}
// Point.prototype.clone = function() { //not used since it easy to clone a point using 'new Point(org.x,org.y)'
// return new Point(this.x, this.y);
// }
Point.prototype.distance = function(p) {
var x1 = this.x;
var y1 = this.y;
var x2 = p.x;
var y2 = p.y;
return Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
}
Point.prototype.rotate = function(radians,pivot) {
if (pivot===undefined) pivot = new Point(0,0);
var x = this.x;
var y = this.y;
var xrot = ((x-pivot.x)*Math.cos(radians) - (y-pivot.y)*Math.sin(radians)) + pivot.x;
this.y = ((x-pivot.x)*Math.sin(radians) + (y-pivot.y)*Math.cos(radians)) + pivot.y;
this.x = xrot;
}
Point.prototype.toString = function(p) {
return this.x.toFixed(2) + "," + this.y.toFixed(2);
}