Aim: Internal class used by AffineGeometry to differentiate operations on lattice points and operations on points with floating-point coordinates.
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#include <DGtal/geometry/tools/AffineGeometry.h>

Public Types
typedef PointVector< dim, TEuclideanRing, TContainer >	Point

typedef Point::Coordinate	Scalar

typedef Scalar	Integer
	In the generic class, the type scalar should be an integral type.

Static Private Member Functions
static internal services
template<typename TInteger >
static void	normalizeVector (Point &w, TInteger)

template<typename TOtherPoint >
static Point	cast (const TOtherPoint &other)
	Specialized version to cast points to other point type.

Friends
template<typename T >
struct	DGtal::AffineGeometry

template<typename T >
struct	DGtal::AffineBasis

Detailed Description

template<DGtal::Dimension dim, typename TEuclideanRing, typename TContainer = std::array<TEuclideanRing,dim>>
struct DGtal::detail::AffineGeometryPointOperations< dim, TEuclideanRing, TContainer >

Aim: Internal class used by AffineGeometry to differentiate operations on lattice points and operations on points with floating-point coordinates.

Description of template class 'AffineGeometryPointOperations'

Definition at line 70 of file AffineGeometry.h.

Member Typedef Documentation

◆ Integer

template<DGtal::Dimension dim, typename TEuclideanRing , typename TContainer = std::array<TEuclideanRing,dim>>

typedef Scalar DGtal::detail::AffineGeometryPointOperations< dim, TEuclideanRing, TContainer >::Integer

In the generic class, the type scalar should be an integral type.

Definition at line 77 of file AffineGeometry.h.

◆ Point

template<DGtal::Dimension dim, typename TEuclideanRing , typename TContainer = std::array<TEuclideanRing,dim>>

typedef PointVector< dim, TEuclideanRing, TContainer > DGtal::detail::AffineGeometryPointOperations< dim, TEuclideanRing, TContainer >::Point

Definition at line 74 of file AffineGeometry.h.

◆ Scalar

template<DGtal::Dimension dim, typename TEuclideanRing , typename TContainer = std::array<TEuclideanRing,dim>>

typedef Point::Coordinate DGtal::detail::AffineGeometryPointOperations< dim, TEuclideanRing, TContainer >::Scalar

Definition at line 75 of file AffineGeometry.h.

Member Function Documentation

◆ cast()

template<DGtal::Dimension dim, typename TEuclideanRing , typename TContainer = std::array<TEuclideanRing,dim>>

template<typename TOtherPoint >

static Point DGtal::detail::AffineGeometryPointOperations< dim, TEuclideanRing, TContainer >::cast ( const TOtherPoint & other )

inlinestaticprivate

Specialized version to cast points to other point type.

Definition at line 102 of file AffineGeometry.h.

      {
        return IntegerConverter< Point::dimension, Scalar >::cast( other );
      }

References DGtal::IntegerConverter< dim, TInteger >::cast().

Referenced by DGtal::AffineGeometry< TPoint >::transform().

◆ normalizeVector()

template<DGtal::Dimension dim, typename TEuclideanRing , typename TContainer = std::array<TEuclideanRing,dim>>

template<typename TInteger >

static void DGtal::detail::AffineGeometryPointOperations< dim, TEuclideanRing, TContainer >::normalizeVector	(	Point &	w,
		TInteger
	)

inlinestaticprivate

Generic method to normalize a vector. By default, assume it is an integral type.

Definition at line 87 of file AffineGeometry.h.

      {
        DGtal::Dimension i = 0;
        while ( i < Point::dimension && w[ i ] == 0 ) i++;
        if ( i == Point::dimension ) return;
        TInteger g = abs( w[ i ] );
        for ( DGtal::Dimension k = i+1; k < Point::dimension; k++ )
          g = DGtal::IntegerComputer< TInteger >::staticGcd( g, abs( w[ k ] ) );
        for ( DGtal::Dimension k = i; k < Point::dimension; k++ )
          w[ k ] /= g;
      }