NAME¶

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

SYNOPSIS¶

#include <qwt_point_3d.h>

Public Member Functions¶

QwtPoint3D () QwtPoint3D (double x, double y, double 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) void setY (double y) void setZ (double y) 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::QwtPoint3D () [inline] Constructs a null point.¶

See also:

QwtPoint3D::QwtPoint3D (doublex, doubley, doublez = 0.0) [inline]¶

Constructs a point with coordinates specified by x, y and z.

QwtPoint3D::QwtPoint3D (const QwtPoint3D &other) [inline] Copy constructor. Constructs a point using the values of the point specified.¶

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¶

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.

bool QwtPoint3D::operator!= (const QwtPoint3D &other) const [inline]¶

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

bool QwtPoint3D::operator== (const QwtPoint3D &other) const [inline]¶

Returns true if this point and other are equal; otherwise returns false.

double & QwtPoint3D::rx () [inline]¶

Returns a reference to the x-coordinate of the point.

double & QwtPoint3D::ry () [inline]¶

Returns a reference to the y-coordinate of the point.

double & QwtPoint3D::rz () [inline]¶

Returns a reference to the z-coordinate of the point.

void QwtPoint3D::setX (doublex) [inline]¶

Sets the x-coordinate of the point to the value specified by x.

void QwtPoint3D::setY (doubley) [inline]¶

Sets the y-coordinate of the point to the value specified by y.

void QwtPoint3D::setZ (doubley) [inline]¶

Sets the z-coordinate of the point to the value specified by z.

QPointF QwtPoint3D::toPoint () const [inline] Rounds 2D point, where the z coordinate is dropped.¶

double QwtPoint3D::x () const [inline]¶

Returns the x-coordinate of the point.

double QwtPoint3D::y () const [inline]¶

Returns the y-coordinate of the point.

double QwtPoint3D::z () const [inline]¶

Returns the z-coordinate of the point.

Author¶

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