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    SG_USING_STD(ostream);
  30    SG_USING_STD(istream);
  31    SG_USING_STD(cerr);
  32    SG_USING_STD(cout);
  33    SG_USING_STD(endl);
  34 //   SG_USING_STD(sqrt);
  35 #else
  36 #  include <string>
  37 #  if defined (sgi) && !defined(__GNUC__) && (_COMPILER_VERSION < 740)
  38 #    include <fstream.h>
  39 #    include <iostream.h>
  40 #    include <math.h>
  41 #  else
  42 #    include <fstream>
  43 #  if defined (sgi) && !defined(__GNUC__)
  44 #    include <math.h>
  45 #  else
  46 #    include <cmath>
  47 #  endif
  48 #    include <iostream>
  49      using std::ostream;
  50      using std::istream;
  51      using std::cerr;
  52      using std::cout;
  53      using std::endl;
  54      using std::sqrt;
  55 #  endif
  56    using std::string;
  57 #endif
  58
  59 #include "FGJSBBase.h"
  60
  61 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  62 DEFINITIONS
  63 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  64
  65 #define ID_COLUMNVECTOR4 "$Id$"
  66
  67 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  68 FORWARD DECLARATIONS
  69 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  70
  71 namespace JSBSim {
  72
  73 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  74 CLASS DOCUMENTATION
  75 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  76
  77 /** This class implements a 4 dimensional vector.
  78     @author Jon S. Berndt, Tony Peden, et. al.
  79     @version $Id$
  80 */
  81
  82 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  83 CLASS DECLARATION
  84 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  85
  86 class FGColumnVector4 : public FGJSBBase
  87 {
  88 public:
  89   FGColumnVector4(void);
  90   FGColumnVector4(double A, double B, double C, double D);
  91   FGColumnVector4(const FGColumnVector4& b);
  92   ~FGColumnVector4(void);
  93
  94   FGColumnVector4 operator=(const FGColumnVector4& b);
  95
  96   FGColumnVector4 operator*(const double scalar);
  97   FGColumnVector4 operator/(const double scalar);
  98   FGColumnVector4 operator+(const FGColumnVector4& B); // must not return reference
  99   FGColumnVector4 operator-(const FGColumnVector4& B);
 100
 101   void operator-=(const FGColumnVector4 &B);
 102   void operator+=(const FGColumnVector4 &B);
 103   void operator*=(const double scalar);
 104   void operator/=(const double scalar);
 105
 106   inline double operator()(int m) const { return data[m]; }
 107   inline double& operator()(int m) { return data[m]; }
 108
 109   FGColumnVector4& operator<<(const double ff);
 110
 111   inline void InitMatrix(void) { data[1]=0; data[2]=0; data[3]=0; data[4]=0; }
 112   inline void InitMatrix(double ff) { data[1]=ff; data[2]=ff; data[3]=ff; data[4]=ff;}
 113
 114   double Magnitude(void);
 115   FGColumnVector4 Normalize(void);
 116
 117   friend FGColumnVector4 operator*(const double scalar, const FGColumnVector4& A);
 118
 119   friend ostream& operator<<(ostream& os, FGColumnVector4& col);
 120
 121
 122   FGColumnVector4 multElementWise(const FGColumnVector4& V);
 123
 124 private:
 125   double data[5];
 126   int rowCtr;
 127   void Debug(int from);
 128 };
 129 }
 130 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 131 #endif
 132