11 #ifndef _QWT_POINT_POLAR_H_    12 #define _QWT_POINT_POLAR_H_ 1    14 #include "qwt_global.h"    17 #ifndef QT_NO_DEBUG_STREAM    36     void setPoint( 
const QPointF & );
    37     QPointF toPoint() 
const;
    42     double radius() 
const;
    43     double azimuth() 
const;
    48     void setRadius( 
double );
    49     void setAzimuth( 
double );
    88     d_azimuth( other.d_azimuth ),
    89     d_radius( other.d_radius )
    96     return d_radius >= 0.0;
   102     return d_radius == 0.0;
   141 #ifndef QT_NO_DEBUG_STREAM   142 QWT_EXPORT QDebug operator<<( QDebug, 
const QwtPointPolar & );
   145 inline QPoint qwtPolar2Pos( 
const QPoint &pole,
   146     double radius, 
double angle )
   148     const double x = pole.x() + 
radius * qCos( angle );
   149     const double y = pole.y() - 
radius * qSin( angle );
   151     return QPoint( qRound( x ), qRound( y ) );
   154 inline QPoint qwtDegree2Pos( 
const QPoint &pole,
   155     double radius, 
double angle )
   157     return qwtPolar2Pos( pole, 
radius, angle / 180.0 * M_PI );
   160 inline QPointF qwtPolar2Pos( 
const QPointF &pole,
   161     double radius, 
double angle )
   163     const double x = pole.x() + 
radius * qCos( angle );
   164     const double y = pole.y() - 
radius * qSin( angle );
   166     return QPointF( x, y);
   169 inline QPointF qwtDegree2Pos( 
const QPointF &pole,
   170     double radius, 
double angle )
   172     return qwtPolar2Pos( pole, 
radius, angle / 180.0 * M_PI );
   175 inline QPointF qwtFastPolar2Pos( 
const QPointF &pole,
   176     double radius, 
double angle )
   178 #if QT_VERSION < 0x040601   179     const double x = pole.x() + 
radius * ::cos( angle );
   180     const double y = pole.y() - 
radius * ::sin( angle );
   182     const double x = pole.x() + 
radius * qFastCos( angle );
   183     const double y = pole.y() - 
radius * qFastSin( angle );
   186     return QPointF( x, y);
   189 inline QPointF qwtFastDegree2Pos( 
const QPointF &pole,
   190     double radius, 
double angle )
   192     return qwtFastPolar2Pos( pole, 
radius, angle / 180.0 * M_PI );
   198         qSqrt( qwtSqr( pos.x() ) + qwtSqr( pos.y() ) ) );
 A point in polar coordinates. 
Definition: qwt_point_polar.h:28
double & rAzimuth()
Returns the azimuth. 
Definition: qwt_point_polar.h:124
bool isNull() const 
Returns true if radius() >= 0.0. 
Definition: qwt_point_polar.h:100
bool isValid() const 
Returns true if radius() >= 0.0. 
Definition: qwt_point_polar.h:94
double azimuth() const 
Returns the azimuth. 
Definition: qwt_point_polar.h:112
QwtPointPolar()
Definition: qwt_point_polar.h:65
double radius() const 
Returns the radius. 
Definition: qwt_point_polar.h:106
void setRadius(double)
Sets the radius to radius. 
Definition: qwt_point_polar.h:130
void setAzimuth(double)
Sets the atimuth to atimuth. 
Definition: qwt_point_polar.h:136
double & rRadius()
Returns the radius. 
Definition: qwt_point_polar.h:118