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