src/FDM/JSBSim/FGColumnVector4.h

   1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   2
   3 Header: FGColumnVector4.h
   4 Author: Originally by Tony Peden [formatted and adapted here by Jon Berndt]
   5 Date started: Unknown
   6
   7 HISTORY
   8 --------------------------------------------------------------------------------
   9
  10 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  11 SENTRY
  12 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  13
  14 #ifndef FGCOLUMNVECTOR4_H
  15 #define FGCOLUMNVECTOR4_H
  16
  17 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  18 INCLUDES
  19 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  20
  21 #include <stdlib.h>
  22 #ifdef FGFS
  23 #  include <math.h>
  24 #  include <simgear/compiler.h>
  25 #  include STL_STRING
  26 #  include STL_FSTREAM
  27 #  include STL_IOSTREAM
  28    SG_USING_STD(string);
  29 #  if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
  30      SG_USING_STD(ostream);
  31      SG_USING_STD(istream);
  32      SG_USING_STD(cerr);
  33      SG_USING_STD(cout);
  34      SG_USING_STD(endl);
  35 #  endif
  36 #else
  37 #  include <string>
  38 #  if defined (sgi) && !defined(__GNUC__)
  39 #    include <fstream.h>
  40 #    include <math.h>
  41 #    include <iostream.h>
  42 #  else
  43 #    include <fstream>
  44 #    include <cmath>
  45 #    include <iostream>
  46      using std::ostream;
  47      using std::istream;
  48      using std::cerr;
  49      using std::cout;
  50      using std::endl;
  51 #  endif
  52    using std::string;
  53 #endif
  54
  55 #include "FGJSBBase.h"
  56
  57 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  58 DEFINITIONS
  59 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  60
  61 #define ID_COLUMNVECTOR4 "$Id$"
  62
  63 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  64 FORWARD DECLARATIONS
  65 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  66
  67 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  68 DECLARATION: FGColumnVector4
  69 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  70
  71 class FGColumnVector4 : public FGJSBBase
  72 {
  73 public:
  74   FGColumnVector4(void);
  75   FGColumnVector4(double A, double B, double C, double D);
  76   FGColumnVector4(const FGColumnVector4& b);
  77   ~FGColumnVector4(void);
  78
  79   FGColumnVector4 operator=(const FGColumnVector4& b);
  80
  81   FGColumnVector4 operator*(const double scalar);
  82   FGColumnVector4 operator/(const double scalar);
  83   FGColumnVector4 operator+(const FGColumnVector4& B); // must not return reference
  84   FGColumnVector4 operator-(const FGColumnVector4& B);
  85
  86   void operator-=(const FGColumnVector4 &B);
  87   void operator+=(const FGColumnVector4 &B);
  88   void operator*=(const double scalar);
  89   void operator/=(const double scalar);
  90
  91   inline double operator()(int m) const { return data[m]; }
  92   inline double& operator()(int m) { return data[m]; }
  93
  94   FGColumnVector4& operator<<(const double ff);
  95
  96   inline void InitMatrix(void) { data[1]=0; data[2]=0; data[3]=0; data[4]=0; }
  97   inline void InitMatrix(double ff) { data[1]=ff; data[2]=ff; data[3]=ff; data[4]=ff;}
  98
  99   double Magnitude(void);
 100   FGColumnVector4 Normalize(void);
 101
 102   friend FGColumnVector4 operator*(const double scalar, const FGColumnVector4& A);
 103
 104   friend ostream& operator<<(ostream& os, FGColumnVector4& col);
 105
 106
 107   FGColumnVector4 multElementWise(const FGColumnVector4& V);
 108
 109 private:
 110   double data[5];
 111   int rowCtr;
 112   void Debug(int from);
 113 };
 114
 115 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 116 #endif
 117