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Vector.h
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C/C++ Source or Header
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1992-11-20
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3KB
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98 lines
/*
* Vector.h - class definitions for class Vector.
*
* Copyright (C) 1992, Christoph Streit (streit@iam.unibe.ch)
* University of Berne, Switzerland
* All rights reserved.
*
* This software may be freely copied, modified, and redistributed
* provided that this copyright notice is preserved on all copies.
*
* You may not distribute this software, in whole or in part, as part of
* any commercial product without the express consent of the authors.
*
* There is no warranty or other guarantee of fitness of this software
* for any purpose. It is provided solely "as is".
*
*/
#ifndef Vector_H
# define Vector_H
#include <iostream.h>
#include <math.h>
#include "mathutilities.h"
#include "Error.h"
//___________________________________________________________ Vector
class Vector
{
public:
Vector();
Vector(const real, const real, const real);
Vector(const Vector&);
real& operator[](int i);
real operator[](int i) const;
const Vector& operator=(const Vector&);
Vector& operator+=(const Vector&);
Vector& operator-=(const Vector&);
Vector& operator*=(const Vector&);
Vector& operator*=(const real);
Vector& operator/=(const real);
int operator==(const Vector&) const;
int operator!=(const Vector&) const;
real sqr() const; // squared length of vector
real length() const; // length of vector
int zero() const;
real distance(const Vector&) const; // distance between two points
real normalize(); // normalize vector
Vector normalized() const; // generate normalized vector
Vector operator-() const; // negation
Vector operator+(const Vector&) const; // vector addition
Vector operator-(const Vector&) const; // vector subtraction
Vector operator*(const Vector&) const; // vector cross product
real operator^(const Vector&) const; // vector dot product
Vector operator/(const real) const; // scalar divison
// scalar multiply
friend Vector operator*(real, const Vector&);
friend Vector operator*(const Vector&, real);
friend ostream& operator<<(ostream&, const Vector&);
static void swap(Vector&, Vector&);
private:
real v[3];
};
inline real& Vector::operator[](int i)
{
#ifndef __OPTIMIZE__
if (i<0 || i>2)
Error(ERR_PANIC, "Vector::operator[] index out of range");
#endif
return v[i];
}
inline real Vector::operator[](int i) const
{
#ifndef __OPTIMIZE__
if (i<0 || i>2)
Error(ERR_PANIC, "Vector::operator[] index out of range");
#endif
return v[i];
}
#endif // Vector_H