dist/joint.nowrap.js
function(sx, sy, origin) {

            origin = (origin && new Point(origin)) || new Point(0, 0);
            this.x = origin.x + sx * (this.x - origin.x);
            this.y = origin.y + sy * (this.y - origin.y);
            return this;
        }
function(sx, sy, origin) {

            origin = (origin && new Point(origin)) || new Point(0, 0);
            this.x = origin.x + sx * (this.x - origin.x);
            this.y = origin.y + sy * (this.y - origin.y);
            return this;
        }
function ( sx , sy , origin ) { origin = ( origin && new Point ( origin ) ) || new Point ( 0 , 0 ) ; this . x = origin . x + sx * ( this . x - origin . x ) ; this . y = origin . y + sy * ( this . y - origin . y ) ; return this ; }
Scale point with origin.
Scale point with origin .