ossimLanczosFilter Class Reference

#include <ossimFilter.h>

Inheritance diagram for ossimLanczosFilter:

Public Member Functions
	ossimLanczosFilter ()
virtual	~ossimLanczosFilter ()
double	filter (double x, double) const
virtual double	getSupport () const
Public Member Functions inherited from ossimFilter
	ossimFilter ()
virtual	~ossimFilter ()
virtual NEWMAT::Matrix *	newMatrix (long width=3, double middle=0.0, double scale=0.0) const
virtual void	createMatrix (NEWMAT::Matrix &m, long width=3, double middle=0.0, double scale=0.0) const
virtual NEWMAT::RowVector *	newVector (long width, double middle=0.0, double scale=1.0) const

Additional Inherited Members
Static Public Member Functions inherited from ossimFilter
static double	Sinc (double x)
static double	Sinc (double x, double)

Detailed Description

Definition at line 380 of file ossimFilter.h.

Constructor & Destructor Documentation

ossimLanczosFilter()

ossimLanczosFilter::ossimLanczosFilter ( )

inline

Definition at line 383 of file ossimFilter.h.

{}

~ossimLanczosFilter()

virtual ossimLanczosFilter::~ossimLanczosFilter ( )

inlinevirtual

Definition at line 384 of file ossimFilter.h.

{}

Member Function Documentation

filter()

double ossimLanczosFilter::filter ( double  x, double    ) const

inlinevirtual

Implements ossimFilter.

Definition at line 385 of file ossimFilter.h.

References getSupport(), ossimFilter::Sinc(), and x.

      {
         if (x < -3.0)
            return(0.0);
         if (x < 0.0)
            return(Sinc(-x,getSupport())*Sinc(-x/3.0,getSupport()));
         if (x < 3.0)
            return(Sinc(x,getSupport())*Sinc(x/3.0,getSupport()));
         return(0.0);
      }

getSupport()

virtual double ossimLanczosFilter::getSupport ( ) const

inlinevirtual

Implements ossimFilter.

Definition at line 395 of file ossimFilter.h.

Referenced by filter().

      {
         return 3.0;
      }

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The documentation for this class was generated from the following file:

• ossimFilter.h