Point2D Class Reference

List of all members.

Public Member Functions
double &	operator[] (const int &index)
double &	index (const int &i)
double	dot (const Point2D &pt) const
double	length (void) const
double	squareNorm (void) const
Point2D	unit (void) const
Point2D	negate (void) const
Point2D	operator- (void) const
Point2D	scale (double scl) const
Point2D	operator * (double scale) const
Point2D &	operator *= (double scale)
Point2D	operator/ (double scale) const
Point2D &	operator/= (double scale)
Point2D	add (const Point2D &pt) const
Point2D	operator+ (const Point2D &pt) const
Point2D &	operator+= (const Point2D &pt)
Point2D	subtract (const Point2D &pt) const
Point2D	operator- (const Point2D &pt) const
Point2D &	operator-= (const Point2D &pt)
Point2D	mult (const Point2D &pt) const
Point2D	operator * (const Point2D &pt) const
Point2D &	operator *= (const Point2D &pt)
Point2D	div (const Point2D &pt) const
Point2D	operator/ (const Point2D &pt) const
Point2D &	operator/= (const Point2D &pt)
Public Attributes
double	p [2]

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Detailed Description

This class represents a 2D vector

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Member Function Documentation

Point2D Point2D::add (  const Point2D &  pt  )  const

This method adds two points and returns their sum.

Point2D Point2D::div (  const Point2D &  pt  )  const

This method performs a component-wise division of two ponts and returns the ratio.

double Point2D::dot (  const Point2D &  pt  )  const

This method returns the dot product of two points.

double & Point2D::index (  const int &  i  )

This method returns the value of the indexed coefficient.

double Point2D::length (  void   )  const

This method returns the length of a point.

Point2D Point2D::mult (  const Point2D &  pt  )  const

This method performs a component-wise multiplication of two ponts and returns the product.

Point2D Point2D::negate (  void   )  const

This method return the negative of the point.

Point2D Point2D::operator * (  const Point2D &  pt  )  const

This method performs a component-wise multiplication of two ponts and returns the product.

Point2D Point2D::operator * (  double  scale  )  const

This method scales a point by a constant factor and returns a new point.

Point2D & Point2D::operator *= (  const Point2D &  pt  )

This method multiplies the coefficients of the current point by the coefficients of the input point.

Point2D & Point2D::operator *= (  double  scale  )

This method scales the current point by a constant factor.

Point2D Point2D::operator+ (  const Point2D &  pt  )  const

This method adds two points and returns their sum.

Point2D & Point2D::operator+= (  const Point2D &  pt  )

This method adds a point to the current point.

Point2D Point2D::operator- (  const Point2D &  pt  )  const

This method subtracts two points and returns their difference.

Point2D Point2D::operator- (  void   )  const

This method return the negative of the point.

Point2D & Point2D::operator-= (  const Point2D &  pt  )

This method subtracts a point from the current point.

Point2D Point2D::operator/ (  const Point2D &  pt  )  const

This method performs a component-wise division of two ponts and returns the ratio.

Point2D Point2D::operator/ (  double  scale  )  const

This method divides the coefficients of a point by a constant factor and returns a new point.

Point2D & Point2D::operator/= (  const Point2D &  pt  )

This method divides the coefficients of the current point by the coefficients of the input point.

Point2D & Point2D::operator/= (  double  scale  )

This method divides the coefficients of the current point by a constant factor.

double & Point2D::operator[] (  const int &  index  )

This method returns the value of the indexed coefficient.

Point2D Point2D::scale (  double  scl  )  const

This method scales a point by a constant factor and returns a new point.

double Point2D::squareNorm (  void   )  const

This method returns the square of the length of a point.

Point2D Point2D::subtract (  const Point2D &  pt  )  const

This method subtracts two points and returns their difference.

Point2D Point2D::unit (  void   )  const

This method returns a unit vector that points in the same direction as the point.

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Member Data Documentation

double Point2D::p[2]

The coordinates of the point

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