dist/joint.nowrap.js
function(dx, dy) {
            if (dx === undefined) {
                dx = 0;
            }

            if (dy === undefined) {
                dy = dx;
            }

            this.a += 2 * dx;
            this.b += 2 * dy;

            return this;
        }
function(dx, dy) {
            if (dx === undefined) {
                dx = 0;
            }

            if (dy === undefined) {
                dy = dx;
            }

            this.a += 2 * dx;
            this.b += 2 * dy;

            return this;
        }
function ( dx , dy ) { if ( dx === undefined ) { dx = 0 ; } if ( dy === undefined ) { dy = dx ; } this . a += 2 * dx ; this . b += 2 * dy ; return this ; }
inflate by dx and dy @param dx {delta_x} representing additional size to x @param dy {delta_y} representing additional size to y - dy param is not required -> in that case y is sized by dx
inflate by dx and dy