Point2D< T_ > Class Template Reference

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

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. More...
	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. More...
const T_ &	operator() (size_t i) const
	Operator() : Constant version. More...
T_ &	operator[] (size_t i)
	Operator[]: Non constant version. More...
const T_ &	operator[] (size_t i) const
	Operator[] Constant version. More...
Point2D< T_ > &	operator= (const Point2D< T_ > &p)
	Operator = More...
Point2D< T_ > &	operator+= (const Point2D< T_ > &p)
	Operator += More...
Point2D< T_ > &	operator-= (const Point2D< T_ > &p)
	Operator -= More...
Point2D< T_ > &	operator= (const T_ &a)
	Operator = More...
Point2D< T_ > &	operator+= (const T_ &a)
	Operator += More...
Point2D< T_ > &	operator-= (const T_ &a)
	Operator -= More...
Point2D< T_ > &	operator*= (const T_ &a)
	Operator *= More...
Point2D< T_ > &	operator/= (const T_ &a)
	Operator /= More...
bool	operator== (const Point2D< T_ > &p)
	Operator == More...
bool	operator!= (const Point2D< T_ > &p)
	Operator != More...
real_t	CrossProduct (const Point2D< real_t > &lp, const Point2D< real_t > &rp)
	Return Cross product of two vectors lp and rp
real_t	NNorm () const
	Return squared norm (length) of vector.
real_t	Norm () const
	Return norm (length) of vector.
Point2D< real_t >	Director (const Point2D< real_t > &p) const
	Return Director (Normalized vector)
bool	isCloseTo (const Point2D< real_t > &a, real_t toler=OFELI_TOLERANCE) 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>, ...)

Author

Rachid Touzani

Copyright

GNU Lesser Public License

Constructor & Destructor Documentation

Point2D()

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

Member Function Documentation

operator!=()

bool operator!=

(

const Point2D< T_ > &

p

)

Operator !=

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

operator()() [1/2]

T_& operator()

(

size_t

i

)

Operator() : Non constant version.

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

operator()() [2/2]

const T_& operator()

(

size_t

i

)

const

Operator() : Constant version.

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

operator*=()

Point2D<T_>& operator*=

(

const T_ &

a

)

Operator *=

Multiply constant a by current instance coordinates

operator+=() [1/2]

Point2D<T_>& operator+=

(

const Point2D< T_ > &

p

)

Operator +=

Add point p to current instance

operator+=() [2/2]

Point2D<T_>& operator+=

(

const T_ &

a

)

Operator +=

Add constant a to current instance coordinates

operator-=() [1/2]

Point2D<T_>& operator-=

(

const Point2D< T_ > &

p

)

Operator -=

Subtract point p from current instance

operator-=() [2/2]

Point2D<T_>& operator-=

(

const T_ &

a

)

Operator -=

Subtract constant a from current instance coordinates

operator/=()

Point2D<T_>& operator/=

(

const T_ &

a

)

Operator /=

Divide current instance coordinates by a

operator=() [1/2]

Point2D<T_>& operator=

(

const Point2D< T_ > &

p

)

Operator =

Assign point p to current instance

operator=() [2/2]

Point2D<T_>& operator=

(

const T_ &

a

)

Operator =

Assign constant a to current instance coordinates

operator==()

bool operator==

(

const Point2D< T_ > &

p

)

Operator ==

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

operator[]() [1/2]

T_& operator[]

(

size_t

i

)

Operator[]: Non constant version.

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

operator[]() [2/2]

const T_& operator[]

(

size_t

i

)

const

Operator[] Constant version.

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