absoluteValue angle calFixedAngleAndDistanceAndOnLinePoint calFootOfPerpendicular Cross DistanceToLine DistanceToLineSegment DistanceToPlane Dot epsilon findPointOnLine GetAngle getDotProduct IsEqual IsNull IsOnLineSegment IsOnLineSide isParallelX isParallelY isParallelZ Length magnitude2D maximum minimum Move moveAlongLinePt MoveX MoveY MoveZ Normalize num_type operator!= operator% operator& operator* operator* operator*= operator+ operator+= operator- operator- operator-= operator/ operator/= operator< operator= operator= operator== operator[] operator[] Perpendicular ProjectToLine ProjectToPlane ProjectToPlane RotateX RotateY RotateZ Scale ScaleX ScaleY ScaleZ Set SetX SetY SetZ Sqr traits_type TransformToCoordinateSystem Vector3 Vector3 Vector3 x y z ~Vector3

operator+() template<class _Precision > Vector3 operator+ ( const Vector3< _Precision > &  rcVct ) const 实现两个三维向量的相加 将当前对象的分量与输入对象rcVct的分量相加，并将结果赋给cVctRes的分量。 参数 [in] rcVct 一个常量引用到另一个Vector3<_Precision>对象 返回 返回新创建的Vector3对象cVctRes作为相加的结果