Hi Matevz, Why do you want to complicate your life ? Instead of: class ZNode : public TNamed, public ZTrans {} simply have: class ZNode : public ZTrans {} private: TString fName: public: virtual const char* GetName() const virtual void SetName(const char* name) see for example Root class TPave. Rene Brun Matevz Tadel wrote: > > Hi, > > tried the following: > class ZTrans : public TMatrix {} > class ZNode : public TNamed, public ZTrans {} > and finished (of course ... what have i been thinking) with ambiguous > TObject base. > > Is something wrong with the following scheme: > class RMatrix {} which implements all "raw" matrix operations > class TMatrix : public TObject, public RMatrix {} > > In this case ... the above scheme would be feasable by substituting > class ZTrans : public RMatrix. > Then, I could have the same interface to ZNode (which is the base for > elements in forest of 4d objects) and ZTrans (which can appear in > containers of classes derived from ZNode). > > Now i'm using > class ZTrans { friend class ZNode; protected: TMatrix mM; ... } > and that makes numeric algorithms full of .mM-s. > > Streaming & dictionaries work ok for non-TObject derived classes (or am i > missing sth) ... the only problem is i can not use ROOT containers. But in > any case ... i was spolit by stl b4 and prefer to use simple stl > containers now that cint/rootcint supports them. (Must hide hash_maps > ... but these are run-time information in my case ... and it's easy to > provide simple interface to it.) > > Are TTree-s the issue i'm not considering properly? > > Would appreciate any comment ... still learning, trying to get the pig > picture, to use the american lingo. > > Cheers, > matevz > > --------------------------------------------------- > Matevz Tadel, E-mail: Matevz.Tadel@ijs.si > Department of Experimental High Energy Physics F9 > Jozef Stefan Institute, Jamova 39, P.o.Box 3000 > SI-1001 Ljubljana, Slovenia > Tel.: +386-61-177-3674 Fax: +386-61-125-7074 > ---------------------------------------------------
This archive was generated by hypermail 2b29 : Tue Jan 02 2001 - 11:50:20 MET