_getHandleCount _getHandlePoint _getHandleType _hitTestBox _isHandleFixed _load _output _points _save _setHandlePoint _subtype angle center endPoint getPoints getSubType isBeeline isRayline length setBeeline setEndPoint setRayline setStartPoint startPoint

setBeeline() void MgLine::setBeeline ( bool  bee ) 设置是否为无穷直线 这是这个函数的调用关系图: