Interpolate::Applier2D< T > Class Template Reference

specification for a 2D interpolator More...

Inheritance diagram for Interpolate::Applier2D< T >:

Public Member Functions
virtual	~Applier2D ()
virtual T	apply (float x, float y) const =0
virtual void	set (const T *)=0

Detailed Description

template<class T>
class Interpolate::Applier2D< T >

specification for a 2D interpolator

The 'set' method accepts values arranged like this:

    7 9
  5 1 3 11
  4 0 2 10
    6 8
  

The interpolation is supposed to take place in the 0-1-3-2 'base square'. This looks crazy but the idea is that 0-3 are always needed, and the rest is provided bottom-left to top-right.

In some cases, you don't have or don't want to provide data outside the base square. If you want to be 100% sure that any applier is able to use the data, make sure that the size is at least 5, that 0-3 are filled (possibly with undefineds) and set the v[4] to -mUdf(T) (that is a minus there).

The 'apply' method needs the relative distance in x and y direction from the origin (where v[0] is located), and should therefore generally be between 0 and 1, although you can also use the classes for near extrapolation.

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Constructor & Destructor Documentation

~Applier2D()

template<class T >

virtual Interpolate::Applier2D< T >::~Applier2D ( )

inlinevirtual

Member Function Documentation

apply()

template<class T >

virtual T Interpolate::Applier2D< T >::apply ( float  x, float  y  ) const

pure virtual

Implemented in Interpolate::PolyReg2DWithUdf< T >, Interpolate::PolyReg2D< T >, Interpolate::LinearReg2DWithUdf< T >, and Interpolate::LinearReg2D< T >.

set()

template<class T >

virtual void Interpolate::Applier2D< T >::set ( const T *  )

pure virtual

Implemented in Interpolate::PolyReg2DWithUdf< T >, Interpolate::PolyReg2D< T >, Interpolate::LinearReg2DWithUdf< T >, and Interpolate::LinearReg2D< T >.