TVolumeViewIter

class TVolumeViewIter : public TDataSetIter

    protected:

      virtual const TVolumePosition* GetPosition(Int_t level = 0) const
            virtual TVolumePosition* SetPositionAt(TVolume* node, Double_t x = 0, Double_t y = 0, Double_t z = 0, TRotMatrix* matrix = 0)
            virtual TVolumePosition* SetPositionAt(TVolumePosition& curPosition)

    public:

                        TVolumeViewIter(TVolumeView* view, Int_t depth = 1, Bool_t dir = kIterForward)
                        TVolumeViewIter(const TVolumeViewIter&)
                        ~TVolumeViewIter()
         static TClass* Class()
        virtual TClass* IsA() const
         virtual Bool_t Notify()
           virtual void Notify(TDataSet* set)
       TVolumeViewIter& operator=(const TVolumeViewIter&)
      virtual TDataSet* operator[](const Char_t* path)
       TVolumePosition* operator[](Int_t level)
           virtual void Reset(TDataSet* l = 0, Int_t depth = 0)
                   void ResetPosition(Int_t level = 0, TVolumePosition* newPosition = 0)
           virtual void ShowMembers(TMemberInspector& insp, char* parent)
           virtual void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)
       TVolumePosition* UpdateTempMatrix(TVolumePosition* curPosition)

Data Members

    protected:

      TObjArray* fPositions  the array of the Node position in the absolute system

   TVolumeViewIter is a special class-iterator to
   iterate over GEANT geometry dataset TVolumeView.
   Class should provide a "standard" well-known
   "TDataSetIter" interface to navigate and access
   the geometry information supplied by Tgeant_Maker
   as the TVolume object. Apart of the the base
   TDataSetIter this special class may supply
   not only pointer to the selected dataset but some
   "position" information (like translate vectors and
   rotation matrice).

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 Pick the "old" position by pieces

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