TTablePoints.cxx

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00001 // @(#)root/table:$Id: TTablePoints.cxx 34911 2010-08-20 18:34:34Z pcanal $
00002 // Author: Valery Fine   14/05/99  (E-mail: fine@bnl.gov)
00003 
00004 /*************************************************************************
00005  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
00006  * All rights reserved.                                                  *
00007  *                                                                       *
00008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
00009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
00010  *************************************************************************/
00011 
00012 #include "TTablePoints.h"
00013 
00014 ///////////////////////////////////////////////////////////////////////////////////////
00015 //                                                                                   //
00016 //   Defines the TTable as an element of "event" geometry                            //
00017 //                                                                                   //
00018 //  +SEQ,TTablePoints.                                                               //
00019 //  +SEQ,T<your_table_name_here>.                                                    //
00020 //                                                                                   //
00021 //  class T<your_table_name_here>_Points : public TTablePoints                       //
00022 //  {                                                                                //
00023 //    public:                                                                        //
00024 //       T<your_table_name_here>_Points(TTableSorter *sorter,const void *key,Option_t *opt):
00025 //                TTablePoints(sorter,key,opt){}                                     //
00026 //       virtual  ~T<your_table_name_here>_Points(){} // default destructor          //
00027 //       virtual Float_t GetX(Int_t indx) { return ((<your_table_name_here>_st *)fRows)[Indx(idx)]-> <x>;}               //
00028 //       virtual Float_t GetY(Int_t indx) { return ((<your_table_name_here>_st *)fRows)[Indx(idx)]-> <y>;}               //
00029 //       virtual Float_t GetZ(Int_t indx) { return ((<your_table_name_here>_st *)fRows)[Indx(idx)]-> <z>;}               //
00030 //  };                                                                               //
00031 //                                                                                   //
00032 ///////////////////////////////////////////////////////////////////////////////////////
00033 
00034 ClassImp(TTablePoints)
00035 
00036 //____________________________________________________________________________
00037 TTablePoints::TTablePoints()
00038 {
00039    //to be documented
00040    fTableSorter =  0;
00041    fKey         =  0;
00042    fFirstRow    = -1;
00043    fSize        =  0;
00044    fRows        =  0;
00045 }
00046 
00047 //____________________________________________________________________________
00048 TTablePoints::TTablePoints(TTableSorter *sorter,const void *key,Option_t *opt)
00049 {
00050    //to be documented
00051    fTableSorter =  0;
00052    fKey         =  0;
00053    fFirstRow    = -1;
00054    fSize        =  0;
00055    fRows        =  0;
00056    if (sorter) {
00057       fTableSorter = sorter;
00058       fKey         = key;
00059       fSize        = sorter->CountKey(fKey,0,kTRUE,&fFirstRow);
00060       SetTablePointer(GetTable());
00061    }
00062    SetOption(opt);
00063 }
00064 
00065 //____________________________________________________________________________
00066 TTablePoints::TTablePoints(TTableSorter *sorter, Int_t keyIndex,Option_t *opt)
00067 {
00068    //to be documented
00069    fTableSorter =  0;
00070    fKey         =  0;
00071    fFirstRow    = -1;
00072    fSize        =  0;
00073    fRows        =  0;
00074    if (sorter) {
00075       fTableSorter = sorter;
00076       fKey         = sorter->GetKeyAddress(keyIndex);
00077       fSize        = sorter->CountKey(fKey,keyIndex,kFALSE,&fFirstRow);
00078       SetTablePointer(GetTable());
00079    }
00080    SetOption(opt);
00081 }
00082 
00083 //______________________________________________________________________________
00084 Int_t TTablePoints::DistancetoPrimitive(Int_t /*px*/, Int_t /*py*/)
00085 {
00086 //*-*-*-*-*-*-*Compute distance from point px,py to a 3-D points *-*-*-*-*-*-*
00087 //*-*          =====================================================
00088 //*-*
00089 //*-*  Compute the closest distance of approach from point px,py to each segment
00090 //*-*  of the polyline.
00091 //*-*  Returns when the distance found is below DistanceMaximum.
00092 //*-*  The distance is computed in pixels units.
00093 //*-*
00094 //*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
00095    return -1;
00096 }

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