Method localToGlobal

packages/fairygui/src/core/GObject.ts:783–798

* Convert local point to global * 本地坐标转全局坐标

(ax: number = 0, ay: number = 0, outPoint?: Point)

     * 本地坐标转全局坐标
     */
    public localToGlobal(ax: number = 0, ay: number = 0, outPoint?: Point): Point {
        if (this._pivotAsAnchor) {
            ax += this._pivotX * this._width;
            ay += this._pivotY * this._height;
        }

        outPoint = outPoint || new Point();
        outPoint.x = ax;
        outPoint.y = ay;

        if (this._displayObject) {
            return this._displayObject.localToGlobal(outPoint, outPoint);
        }

        return outPoint;
    }

    /**
     * Convert global point to local