Represents two doubles as a mathematical 2D vector. More...

#include <qcustomplot.h>

Public Member Functions
	QCPVector2D ()

	QCPVector2D (double x, double y)

	QCPVector2D (const QPoint &point)

	QCPVector2D (const QPointF &point)

double	x () const

double	y () const

double &	rx ()

double &	ry ()

void	setX (double x)

void	setY (double y)

double	length () const

double	lengthSquared () const

QPoint	toPoint () const

QPointF	toPointF () const

bool	isNull () const

void	normalize ()

QCPVector2D	normalized () const

QCPVector2D	perpendicular () const

double	dot (const QCPVector2D &vec) const

double	distanceSquaredToLine (const QCPVector2D &start, const QCPVector2D &end) const

double	distanceSquaredToLine (const QLineF &line) const

double	distanceToStraightLine (const QCPVector2D &base, const QCPVector2D &direction) const

QCPVector2D &	operator *= (double factor)

QCPVector2D &	operator/= (double divisor)

QCPVector2D &	operator+= (const QCPVector2D &vector)

QCPVector2D &	operator-= (const QCPVector2D &vector)

Friends
const QCPVector2D	operator * (double factor, const QCPVector2D &vec)

const QCPVector2D	operator * (const QCPVector2D &vec, double factor)

const QCPVector2D	operator/ (const QCPVector2D &vec, double divisor)

const QCPVector2D	operator+ (const QCPVector2D &vec1, const QCPVector2D &vec2)

const QCPVector2D	operator- (const QCPVector2D &vec1, const QCPVector2D &vec2)

const QCPVector2D	operator- (const QCPVector2D &vec)

Related Functions
(Note that these are not member functions.)
QDebug	operator<< (QDebug d, const QCPVector2D &vec)

Detailed Description

Represents two doubles as a mathematical 2D vector.

This class acts as a replacement for QVector2D with the advantage of double precision instead of single, and some convenience methods tailored for the QCustomPlot library.

Constructor & Destructor Documentation

◆ QCPVector2D() [1/4]

QCPVector2D::QCPVector2D ( )

Creates a QCPVector2D object and initializes the x and y coordinates to 0.

◆ QCPVector2D() [2/4]

QCPVector2D::QCPVector2D	(	double	x,
		double	y
	)

Creates a QCPVector2D object and initializes the x and y coordinates with the specified values.

◆ QCPVector2D() [3/4]

QCPVector2D::QCPVector2D ( const QPoint & point )

Creates a QCPVector2D object and initializes the x and y coordinates respective coordinates of the specified point.

◆ QCPVector2D() [4/4]

QCPVector2D::QCPVector2D ( const QPointF & point )

Creates a QCPVector2D object and initializes the x and y coordinates respective coordinates of the specified point.

Member Function Documentation

◆ distanceSquaredToLine() [1/2]

double QCPVector2D::distanceSquaredToLine	(	const QCPVector2D &	start,
		const QCPVector2D &	end
	)		const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Returns the squared shortest distance of this vector (interpreted as a point) to the finite line segment given by start and end.

See also: distanceToStraightLine

◆ distanceSquaredToLine() [2/2]

double QCPVector2D::distanceSquaredToLine ( const QLineF & line ) const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Returns the squared shortest distance of this vector (interpreted as a point) to the finite line segment given by line.

See also: distanceToStraightLine

◆ distanceToStraightLine()

double QCPVector2D::distanceToStraightLine	(	const QCPVector2D &	base,
		const QCPVector2D &	direction
	)		const

Returns the shortest distance of this vector (interpreted as a point) to the infinite straight line given by a base point and a direction vector.

See also: distanceSquaredToLine

◆ dot()

double QCPVector2D::dot ( const QCPVector2D & vec ) const

inline

Returns the dot/scalar product of this vector with the specified vector vec.

◆ isNull()

bool QCPVector2D::isNull ( ) const

inline

Returns whether this vector is null. A vector is null if qIsNull returns true for both x and y coordinates, i.e. if both are binary equal to 0.

◆ length()

double QCPVector2D::length ( ) const

inline

Returns the length of this vector.

See also: lengthSquared

◆ lengthSquared()

double QCPVector2D::lengthSquared ( ) const

inline

Returns the squared length of this vector. In some situations, e.g. when just trying to find the shortest vector of a group, this is faster than calculating length, because it avoids calculation of a square root.

See also: length

◆ normalize()

void QCPVector2D::normalize ( )

Normalizes this vector. After this operation, the length of the vector is equal to 1.

See also: normalized, length, lengthSquared

◆ normalized()

QCPVector2D QCPVector2D::normalized ( ) const

Returns a normalized version of this vector. The length of the returned vector is equal to 1.

See also: normalize, length, lengthSquared

◆ operator *=()

QCPVector2D & QCPVector2D::operator *= ( double factor )

Scales this vector by the given factor, i.e. the x and y components are multiplied by factor.

◆ operator+=()

QCPVector2D & QCPVector2D::operator+= ( const QCPVector2D & vector )

Adds the given vector to this vector component-wise.

◆ operator-=()

QCPVector2D & QCPVector2D::operator-= ( const QCPVector2D & vector )

subtracts the given vector from this vector component-wise.

◆ operator/=()

QCPVector2D & QCPVector2D::operator/= ( double divisor )

Scales this vector by the given divisor, i.e. the x and y components are divided by divisor.

◆ perpendicular()

QCPVector2D QCPVector2D::perpendicular ( ) const

inline

Returns a vector perpendicular to this vector, with the same length.

◆ rx()

double& QCPVector2D::rx ( )

inline

◆ ry()

double& QCPVector2D::ry ( )

inline

◆ setX()

void QCPVector2D::setX ( double x )

inline

Sets the x coordinate of this vector to x.

See also: setY

◆ setY()

void QCPVector2D::setY ( double y )

inline

Sets the y coordinate of this vector to y.

See also: setX

◆ toPoint()

QPoint QCPVector2D::toPoint ( ) const

inline

Returns a QPoint which has the x and y coordinates of this vector, truncating any floating point information.

See also: toPointF

◆ toPointF()

QPointF QCPVector2D::toPointF ( ) const

inline

Returns a QPointF which has the x and y coordinates of this vector.

See also: toPoint

◆ x()

double QCPVector2D::x ( ) const

inline

◆ y()

double QCPVector2D::y ( ) const

inline

Friends And Related Function Documentation

◆ operator * [1/2]

const QCPVector2D operator *	(	double	factor,
		const QCPVector2D &	vec
	)

friend

◆ operator * [2/2]

const QCPVector2D operator *	(	const QCPVector2D &	vec,
		double	factor
	)

friend

◆ operator+

const QCPVector2D operator+	(	const QCPVector2D &	vec1,
		const QCPVector2D &	vec2
	)

friend

◆ operator- [1/2]

const QCPVector2D operator-	(	const QCPVector2D &	vec1,
		const QCPVector2D &	vec2
	)

friend

◆ operator- [2/2]

const QCPVector2D operator- ( const QCPVector2D & vec )

friend

◆ operator/

const QCPVector2D operator/	(	const QCPVector2D &	vec,
		double	divisor
	)

friend

◆ operator<<()

QDebug operator<<	(	QDebug	d,
		const QCPVector2D &	vec
	)

The documentation for this class was generated from the following files:

C:/Users/fbas/Documents/GitHub/DISPLACE_GUI/qtcommons/qcustomplot.h
C:/Users/fbas/Documents/GitHub/DISPLACE_GUI/qtcommons/qcustomplot.cpp

Public Member Functions

Friends

Related Functions

Detailed Description

Constructor & Destructor Documentation

◆ QCPVector2D() [1/4]

◆ QCPVector2D() [2/4]

◆ QCPVector2D() [3/4]

◆ QCPVector2D() [4/4]

Member Function Documentation

◆ distanceSquaredToLine() [1/2]

◆ distanceSquaredToLine() [2/2]

◆ distanceToStraightLine()

◆ dot()

◆ isNull()

◆ length()

◆ lengthSquared()

◆ normalize()

◆ normalized()

◆ operator *=()

◆ operator+=()

◆ operator-=()

◆ operator/=()

◆ perpendicular()

◆ rx()

◆ ry()

◆ setX()

◆ setY()

◆ toPoint()

◆ toPointF()

◆ x()

◆ y()

Friends And Related Function Documentation

◆ operator * [1/2]

◆ operator * [2/2]

◆ operator+

◆ operator- [1/2]

◆ operator- [2/2]

◆ operator/

◆ operator<<()