QwtPoint3D Class Reference

QwtPoint3D class defines a 3D point in double coordinates. More...

#include <qwt_point_3d.h>

Public Member Functions
	QwtPoint3D ()
	QwtPoint3D (double x, double y, double z)
	Constructs a point with coordinates specified by x, y and z.
	QwtPoint3D (const QwtPoint3D &)
	QwtPoint3D (const QPointF &)
bool	isNull () const
double	x () const
double	y () const
double	z () const
double &	rx ()
double &	ry ()
double &	rz ()
void	setX (double x)
	Sets the x-coordinate of the point to the value specified by x.
void	setY (double y)
	Sets the y-coordinate of the point to the value specified by y.
void	setZ (double y)
	Sets the z-coordinate of the point to the value specified by z.
QPointF	toPoint () const
bool	operator== (const QwtPoint3D &) const
bool	operator!= (const QwtPoint3D &) const

Detailed Description

QwtPoint3D class defines a 3D point in double coordinates.

Constructor & Destructor Documentation

QwtPoint3D() [1/3]

QwtPoint3D::QwtPoint3D ( )

inline

Constructs a null point.

See also

isNull()

QwtPoint3D() [2/3]

QwtPoint3D::QwtPoint3D ( const QwtPoint3D &  other )

inline

Copy constructor. Constructs a point using the values of the point specified.

QwtPoint3D() [3/3]

QwtPoint3D::QwtPoint3D ( const QPointF &  other )

inline

Constructs a point with x and y coordinates from a 2D point, and a z coordinate of 0.

Member Function Documentation

isNull()

bool QwtPoint3D::isNull ( ) const

inline

Returns

True if the point is null; otherwise returns false.

A point is considered to be null if x, y and z-coordinates are equal to zero.

operator!=()

bool QwtPoint3D::operator!= ( const QwtPoint3D &  other ) const

inline

Returns

True if this rect and other are different; otherwise returns false.

operator==()

bool QwtPoint3D::operator== ( const QwtPoint3D &  other ) const

inline

Returns

True, if this point and other are equal; otherwise returns false.

rx()

double & QwtPoint3D::rx ( )

inline

Returns

A reference to the x-coordinate of the point.

ry()

double & QwtPoint3D::ry ( )

inline

Returns

A reference to the y-coordinate of the point.

rz()

double & QwtPoint3D::rz ( )

inline

Returns

A reference to the z-coordinate of the point.

toPoint()

QPointF QwtPoint3D::toPoint ( ) const

inline

Returns

2D point, where the z coordinate is dropped.

x()

double QwtPoint3D::x ( ) const

inline

Returns

The x-coordinate of the point.

y()

double QwtPoint3D::y ( ) const

inline

Returns

The y-coordinate of the point.

z()

double QwtPoint3D::z ( ) const

inline

Returns

The z-coordinate of the point.