QwtPoint3D - Man Page
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)
Constructs a point with coordinates specified by x, y and z.
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.
Definition at line 22 of file qwt_point_3d.h.
Constructor & Destructor Documentation
QwtPoint3D::QwtPoint3D () [inline]
Constructs a null point.
- See also
isNull()
Definition at line 65 of file qwt_point_3d.h.
QwtPoint3D::QwtPoint3D (const QPointF & other) [inline]
Constructs a point with x and y coordinates from a 2D point, and a z coordinate of 0.
Definition at line 84 of file qwt_point_3d.h.
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.
Definition at line 97 of file qwt_point_3d.h.
bool QwtPoint3D::operator!= (const QwtPoint3D & other) const [inline]
- Returns
True if this rect and other are different; otherwise returns false.
Definition at line 171 of file qwt_point_3d.h.
bool QwtPoint3D::operator== (const QwtPoint3D & other) const [inline]
- Returns
True, if this point and other are equal; otherwise returns false.
Definition at line 165 of file qwt_point_3d.h.
double & QwtPoint3D::rx () [inline]
- Returns
A reference to the x-coordinate of the point.
Definition at line 121 of file qwt_point_3d.h.
double & QwtPoint3D::ry () [inline]
- Returns
A reference to the y-coordinate of the point.
Definition at line 127 of file qwt_point_3d.h.
double & QwtPoint3D::rz () [inline]
- Returns
A reference to the z-coordinate of the point.
Definition at line 133 of file qwt_point_3d.h.
QPointF QwtPoint3D::toPoint () const [inline]
Returns
2D point, where the z coordinate is dropped.
Definition at line 159 of file qwt_point_3d.h.
double QwtPoint3D::x () const [inline]
- Returns
The x-coordinate of the point.
Definition at line 103 of file qwt_point_3d.h.
double QwtPoint3D::y () const [inline]
- Returns
The y-coordinate of the point.
Definition at line 109 of file qwt_point_3d.h.
double QwtPoint3D::z () const [inline]
- Returns
The z-coordinate of the point.
Definition at line 115 of file qwt_point_3d.h.
Author
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