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

transformWith2P() Matrix2d Matrix2d::transformWith2P ( const Point2d &  from1, const Point2d &  from2, const Point2d &  to1, const Point2d &  to2  ) static 得到两个点同时移动后形成的变化矩阵 函数调用图: 这是这个函数的调用关系图: