10 #ifndef QWT_SPLINE_PARAMETRIZATION_H 
   11 #define QWT_SPLINE_PARAMETRIZATION_H 
   13 #include "qwt_global.h" 
  113     virtual double valueIncrement( 
const QPointF&, 
const QPointF& ) 
const;
 
  115     static double valueIncrementX( 
const QPointF&, 
const QPointF& );
 
  116     static double valueIncrementY( 
const QPointF&, 
const QPointF& );
 
  117     static double valueIncrementUniform( 
const QPointF&, 
const QPointF& );
 
  118     static double valueIncrementChordal( 
const QPointF&, 
const QPointF& );
 
  119     static double valueIncrementCentripetal( 
const QPointF&, 
const QPointF& );
 
  120     static double valueIncrementManhattan( 
const QPointF&, 
const QPointF& );
 
  135     const QPointF& point1, 
const QPointF& point2 )
 
  137     return point2.x() - point1.x();
 
  149     const QPointF& point1, 
const QPointF& point2 )
 
  151     return point2.y() - point1.y();
 
  163     const QPointF& point1, 
const QPointF& point2 )
 
  180     const QPointF& point1, 
const QPointF& point2 )
 
  182     const double dx = point2.x() - point1.x();
 
  183     const double dy = point2.y() - point1.y();
 
  185     return std::sqrt( dx * dx + dy * dy );
 
  197     const QPointF& point1, 
const QPointF& point2 )
 
  211     const QPointF& point1, 
const QPointF& point2 )
 
  213     return qAbs( point2.x() - point1.x() ) + qAbs( point2.y() - point1.y() );
 
Curve parametrization used for a spline interpolation.
static double valueIncrementChordal(const QPointF &, const QPointF &)
Calculate the ParameterChordal value increment for 2 points.
static double valueIncrementCentripetal(const QPointF &, const QPointF &)
Calculate the ParameterCentripetal value increment for 2 points.
static double valueIncrementX(const QPointF &, const QPointF &)
Calculate the ParameterX value increment for 2 points.
static double valueIncrementUniform(const QPointF &, const QPointF &)
Calculate the ParameterUniform value increment.
Type
Parametrization type.
static double valueIncrementManhattan(const QPointF &, const QPointF &)
Calculate the ParameterManhattan value increment for 2 points.
static double valueIncrementY(const QPointF &, const QPointF &)
Calculate the ParameterY value increment for 2 points.