11#ifndef QWT_POINT_POLAR_H 
   12#define QWT_POINT_POLAR_H 
   14#include "qwt_global.h" 
   35    void setPoint( 
const QPointF& );
 
   36    QPointF toPoint() 
const;
 
   41    double radius() 
const;
 
   42    double azimuth() 
const;
 
   47    void setRadius( 
double );
 
   48    void setAzimuth( 
double );
 
 
   63#ifndef QT_NO_DEBUG_STREAM 
   84    : m_azimuth( azimuth )
 
 
   92    return m_radius >= 0.0;
 
 
   98    return m_radius == 0.0;
 
 
  137inline QPoint qwtPolar2Pos( 
const QPoint& pole,
 
  138    double radius, 
double angle )
 
  140    const double x = pole.x() + radius * std::cos( angle );
 
  141    const double y = pole.y() - radius * std::sin( angle );
 
  143    return QPoint( qRound( x ), qRound( y ) );
 
  146inline QPoint qwtDegree2Pos( 
const QPoint& pole,
 
  147    double radius, 
double angle )
 
  149    return qwtPolar2Pos( pole, radius, angle / 180.0 * M_PI );
 
  152inline QPointF qwtPolar2Pos( 
const QPointF& pole,
 
  153    double radius, 
double angle )
 
  155    const double x = pole.x() + radius * std::cos( angle );
 
  156    const double y = pole.y() - radius * std::sin( angle );
 
  158    return QPointF( x, y);
 
  161inline QPointF qwtDegree2Pos( 
const QPointF& pole,
 
  162    double radius, 
double angle )
 
  164    return qwtPolar2Pos( pole, radius, angle / 180.0 * M_PI );
 
  167inline QPointF qwtFastPolar2Pos( 
const QPointF& pole,
 
  168    double radius, 
double angle )
 
  170    const double x = pole.x() + radius * qFastCos( angle );
 
  171    const double y = pole.y() - radius * qFastSin( angle );
 
  173    return QPointF( x, y);
 
  176inline QPointF qwtFastDegree2Pos( 
const QPointF& pole,
 
  177    double radius, 
double angle )
 
  179    return qwtFastPolar2Pos( pole, radius, angle / 180.0 * M_PI );
 
  185        qSqrt( qwtSqr( pos.x() ) + qwtSqr( pos.y() ) ) );
 
A point in polar coordinates.
double radius() const
Returns the radius.
void setRadius(double)
Sets the radius to radius.
void setAzimuth(double)
Sets the azimuth to azimuth.
bool isValid() const
Returns true if radius() >= 0.0.
double azimuth() const
Returns the azimuth.
bool isNull() const
Returns true if radius() >= 0.0.
double & rRadius()
Returns the radius.
double & rAzimuth()
Returns the azimuth.