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

isEqualTo() bool Matrix2d::isEqualTo ( const Matrix2d &  mat, const Tol &  tol = Tol::gTol()  ) const 用欧拉规则判断两个矩阵是否相等，即判断矩阵的行矢量是否相等 函数调用图: 这是这个函数的调用关系图: