Shamusworld >> Repos - architektonas/blob - src/vector.h

   1 //\r
   2 // vector.h (Last modified: 6/28/2001)\r
   3 //\r
   4 // Various structures used for 3 dimensional imaging\r
   5 //\r
   6 // by James L. Hammons\r
   7 // (C) 2001 Underground Software\r
   8 //\r
   9 \r
  10 #ifndef __VECTOR_H__\r
  11 #define __VECTOR_H__\r
  12 \r
  13 // What we'll do here is create the vector type and use typedef to alias Point to it. Yeah, that's it.\r
  14 \r
  15 class Vector\r
  16 {\r
  17         public:\r
  18                 Vector(double xx = 0, double yy = 0, double zz = 0);\r
  19                 Vector(Vector head, Vector tail);               // Create vector from two points\r
  20                 Vector operator=(Vector const v);\r
  21                 Vector operator+(Vector const v);\r
  22                 Vector operator-(Vector const v);\r
  23                 Vector operator-(void);                                 // Unary negation\r
  24                 Vector operator*(double const v);               // Vector times constant (double)\r
  25                 Vector operator*(float const v);                // Vector times constant (float)\r
  26                 Vector operator/(double const v);               // Vector divided by constant (double)\r
  27                 Vector operator/(float const v);                // Vector divided by constant (float)\r
  28                 Vector operator*(Vector const v);               // Vector product\r
  29                 double Dot(Vector const v);                             // Dot product\r
  30 \r
  31                 Vector& operator*=(double const v);             // Vector times constant self-assignment\r
  32                 Vector& operator/=(double const v);             // Vector divided by constant self-assignment\r
  33                 Vector& operator+=(Vector const v);             // Vector plus Vector self-assignment\r
  34                 Vector& operator+=(double const v);             // Vector plus constant self-assignment\r
  35                 Vector& operator-=(Vector const v);             // Vector minus Vector self-assignment\r
  36                 Vector& operator-=(double const v);             // Vector minus constant self-assignment\r
  37 \r
  38                 bool operator==(Vector const v);                // Check for equality\r
  39                 bool operator!=(Vector const v);                // Check for inequality\r
  40 \r
  41                 Vector Unit(void);\r
  42                 double Magnitude(void);\r
  43                 double Angle(void);\r
  44                 bool isZero(double epsilon = 1e-6);\r
  45 \r
  46                 // Class methods\r
  47 \r
  48                 static double Dot(Vector v1, Vector v2);\r
  49                 static double Magnitude(Vector v1, Vector v2);\r
  50                 static double Parameter(Vector v1, Vector v2, Vector p);\r
  51                 static Vector Normal(Vector v1, Vector v2);\r
  52 \r
  53         public:\r
  54                 double x, y, z;\r
  55 };\r
  56 \r
  57 typedef Vector Point;\r
  58 \r
  59 #endif  // __VECTOR_H__\r