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)
           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::QwtPoint3D () [inline]
       Constructs a null point.

       See also:
           isNull()

   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.

   QPointF QwtPoint3D::toPoint () const [inline]
       Returns:
           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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