Point2D< T_ > Class Template Reference

Defines a 2-D point with arbitrary type coordinates. More...

List of all members.

Public Member Functions
	Point2D ()
	Default constructor.
	Point2D (T_ a, T_ b=T_(0))
	Constructor that assigns a, b to x-, y- and y-coordinates respectively.
	Point2D (T_ *a)
	Initialize point coordinates with C-array a.
	Point2D (const Point2D< T_ > &pt)
	Copy constructor.
	Point2D (const Point< T_ > &pt)
	Copy constructor from class Point.
T_ &	operator() (size_t i)
	Operator() : Non constant version.
const T_ &	operator() (size_t i) const
	Operator() : Constant version.
T_ &	operator[] (size_t i)
	Operator[] : Non constant version.
const T_ &	operator[] (size_t i) const
	Operator[] : Constant version.
Point2D< T_ > &	operator= (const Point2D< T_ > &p)
	Operator =.
Point2D< T_ > &	operator+= (const Point2D< T_ > &p)
	Operator +=.
Point2D< T_ > &	operator-= (const Point2D< T_ > &p)
	Operator -=.
Point2D< T_ > &	operator= (const T_ &a)
	Operator =.
Point2D< T_ > &	operator+= (const T_ &a)
	Operator +=.
Point2D< T_ > &	operator-= (const T_ &a)
	Operator -=.
Point2D< T_ > &	operator*= (const T_ &a)
	Operator *=.
Point2D< T_ > &	operator/= (const T_ &a)
	Operator /=.
bool	operator== (const Point2D< T_ > &p)
	Operator ==.
bool	operator!= (const Point2D< T_ > &p)
	Operator !=.
double	CrossProduct (const Point2D< double > &lp, const Point2D< double > &rp)
	Return Cross product of two vectors lp and rp.
double	NNorm () const
	Return squared norm (length) of vector.
double	Norm () const
	Return norm (length) of vector.
Point2D< double >	Director (const Point2D< double > &p) const
	Return Director (Normalized vector)
bool	isCloseTo (const Point2D< double > &a, double toler=DBL_EPSILON *10000) const
	Return true if current point is close to instance a (up to tolerance toler)
Public Attributes
T_	x
	First coordinate of point.
T_	y
	Second coordinate of point.

---

Detailed Description

template<class T_>
class OFELI::Point2D< T_ >

Defines a 2-D point with arbitrary type coordinates.

Operators = and () are overloaded. The actual

Template Parameters:

<T_>	Data type (double, float, complex<double>, ...)

---

Constructor & Destructor Documentation

Point2D	(	T_	a,
		T_	b = T_(0)
	)

Constructor that assigns a, b to x-, y- and y-coordinates respectively.

Default value for b is 0

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Member Function Documentation

T_& operator()

(

size_t

i

)

Operator() : Non constant version.

Values i = 1, 2 correspond to x and y respectively

const T_& operator()

(

size_t

i

)

const

Operator() : Constant version.

Values i = 1, 2 correspond to x and y respectively

T_& operator[]

(

size_t

i

)

Operator[] : Non constant version.

Values i = 0, 1 correspond to x and y respectively

const T_& operator[]

(

size_t

i

)

const

Operator[] : Constant version.

Values i = 0, 1 correspond to x and y respectively

Point2D<T_>& operator=

(

const Point2D< T_ > &

p

)

Operator =.

Assign point p to current instance

Point2D<T_>& operator+=

(

const Point2D< T_ > &

p

)

Operator +=.

Add point p to current instance

Point2D<T_>& operator-=

(

const Point2D< T_ > &

p

)

Operator -=.

Subtract point p from current instance

Point2D<T_>& operator=

(

const T_ &

a

)

Operator =.

Assign constant a to current instance coordinates

Point2D<T_>& operator+=

(

const T_ &

a

)

Operator +=.

Add constant a to current instance coordinates

Point2D<T_>& operator-=

(

const T_ &

a

)

Operator -=.

Subtract constant from current instance coordinates

Point2D<T_>& operator*=

(

const T_ &

a

)

Operator *=.

Multiply constant by current instance coordinates

Point2D<T_>& operator/=

(

const T_ &

a

)

Operator /=.

Divide current instance coordinates by a

bool operator==

(

const Point2D< T_ > &

p

)

Operator ==.

Return true if current instance is equal to p, false otherwise.

bool operator!=

(

const Point2D< T_ > &

p

)

Operator !=.

Return false if current instance is equal to p, true otherwise.