QwtPointPolar(3)               Qwt User's Guide               QwtPointPolar(3)

NAME
       QwtPointPolar - A point in polar coordinates.


SYNOPSIS
       #include <qwt_point_polar.h>

   Public Member Functions
       QwtPointPolar ()
       QwtPointPolar (double azimuth, double radius)
       QwtPointPolar (const QPointF &)
       void setPoint (const QPointF &)
       QPointF toPoint () const
       bool isValid () const
           Returns true if radius() >= 0.0.
       bool isNull () const
           Returns true if radius() >= 0.0.
       double radius () const
           Returns the radius.
       double azimuth () const
           Returns the azimuth.
       double & rRadius ()
           Returns the radius.
       double & rAzimuth ()
           Returns the azimuth.
       void setRadius (double)
           Sets the radius to radius.
       void setAzimuth (double)
           Sets the azimuth to azimuth.
       bool operator== (const QwtPointPolar &) const
           Compare 2 points.
       bool operator!= (const QwtPointPolar &) const
       QwtPointPolar normalized () const

Detailed Description
       A point in polar coordinates.

       In polar coordinates a point is determined by an angle and a distance.
       See http://en.wikipedia.org/wiki/Polar_coordinate_system

       Definition at line 28 of file qwt_point_polar.h.

Constructor & Destructor Documentation
   QwtPointPolar::QwtPointPolar () [inline]
       Constructs a null point, with a radius and azimuth set to 0.0.

       See also
           QPointF::isNull()

       Definition at line 71 of file qwt_point_polar.h.

   QwtPointPolar::QwtPointPolar (double azimuth, double radius) [inline]
       Constructs a point with coordinates specified by radius and azimuth.

       Parameters
           azimuth Azimuth
           radius Radius

       Definition at line 83 of file qwt_point_polar.h.

   QwtPointPolar::QwtPointPolar (const QPointF & p)
       Convert and assign values from a point in Cartesian coordinates

       Parameters
           p Point in Cartesian coordinates

       See also
           setPoint(), toPoint()

       Definition at line 44 of file qwt_point_polar.cpp.

Member Function Documentation
   QwtPointPolar QwtPointPolar::normalized () const
       Normalize radius and azimuth

       When the radius is < 0.0 it is set to 0.0. The azimuth is a value >=
       0.0 and < 2 * M_PI.

       Returns
           Normalized point

       Definition at line 118 of file qwt_point_polar.cpp.

   bool QwtPointPolar::operator!= (const QwtPointPolar & other) const
       Compare 2 points

       Two points are equal to each other if radius and azimuth-coordinates
       are the same. Points are not equal, when the azimuth differs, but
       other.azimuth() == azimuth() % (2 * PI).

       Returns
           True if the point is not equal to other; otherwise return false.

       See also
           normalized()

       Definition at line 105 of file qwt_point_polar.cpp.

   bool QwtPointPolar::operator== (const QwtPointPolar & other) const
       Compare 2 points. Two points are equal to each other if radius and
       azimuth-coordinates are the same. Points are not equal, when the
       azimuth differs, but other.azimuth() == azimuth() % (2 * PI).

       Returns
           True if the point is equal to other; otherwise return false.

       See also
           normalized()

       Definition at line 90 of file qwt_point_polar.cpp.

   void QwtPointPolar::setPoint (const QPointF & p)
       Convert and assign values from a point in Cartesian coordinates

       Parameters
           p Point in Cartesian coordinates

       Definition at line 54 of file qwt_point_polar.cpp.

   QPointF QwtPointPolar::toPoint () const
       Convert and return values in Cartesian coordinates

       Returns
           Converted point in Cartesian coordinates

       Note
           Invalid or null points will be returned as QPointF(0.0, 0.0)

       See also
           isValid(), isNull()

       Definition at line 68 of file qwt_point_polar.cpp.


Author
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       code.

Version 6.2.0                   Sun Jul 18 2021               QwtPointPolar(3)