A point in polar coordinates.  
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#include <qwt_point_polar.h>
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 
  
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          | QwtPointPolar::QwtPointPolar | ( |  | ) |  |  | inline | 
 
Constructs a null point, with a radius and azimuth set to 0.0. 
- See also
- QPointF::isNull() 
 
 
  
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          | QwtPointPolar::QwtPointPolar | ( | double | azimuth, |  
          |  |  | double | radius |  
          |  | ) |  |  |  | inline | 
 
Constructs a point with coordinates specified by radius and azimuth.
- Parameters
- 
  
    | azimuth | Azimuth |  | radius | Radius |  
 
 
 
Constructs a point using the values of the point specified. 
- Parameters
- 
  
  
 
 
      
        
          | 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() 
 
 
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 
 
 
      
        
          | 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() 
 
 
      
        
          | 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() 
 
 
      
        
          | void QwtPointPolar::setPoint | ( | const QPointF & | p | ) |  | 
      
 
Convert and assign values from a point in Cartesian coordinates 
- Parameters
- 
  
    | p | Point in Cartesian coordinates |  
 
 
 
      
        
          | 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()