clear()
    {
        this.x = this.y = this.width = this.height = 0;
        this._empty = true;
    }
/**
     * Resets the bounding box to a default empty box.
     *
     */
Resets the bounding box to a default empty box.
Resets the bounding box to a default empty box .
clear()
    {
        this.x = this.y = this.width = this.height = 0;
        this._empty = true;
    }
clear ( ) { this . x = this . y = this . width = this . height = 0 ; this . _empty = true ; }
Resets the bounding box to a default empty box.
Resets the bounding box to a default empty box .