angle coordSystem coordSystem det dx dy getCoordSystem hasMirror inverse invert isConformal isEqualTo isIdentity isInvertible isOrtho kIdentity m11 m12 m21 m22 Matrix2d Matrix2d Matrix2d Matrix2d mirroring mirroring operator!= operator* operator* operator* operator*= operator*= operator/ operator/= operator== postMultBy preMultBy rotation scale scaleBy scaleBy scaleX scaleY scaling scaling set setCoordSystem setToIdentity setToMirroring setToMirroring setToProduct setToRotation setToScaling setToScaling setToShearing setToTranslation shearing transformPoints transformVectors transformWith2P translation

mirroring() [2/2] Matrix2d Matrix2d::mirroring ( const Point2d &  pnt, const Vector2d &  dir  ) static 得到以直线(pnt,dir)为中心线的对称变换矩阵 参数 pnt 对称中心线上的一点 dir 对称中心线的方向矢量 返回 新的变换矩阵 函数调用图: