DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform Struct Reference

#include <DGtal/geometry/surfaces/COBAGenericStandardPlaneComputer.h>

Public Types
typedef Point	Value
typedef Point	value_type

Public Member Functions
	Transform ()
	Transform (bool posX, bool posY)
Point	operator() (const Point &p) const
bool	isPlusZOnX () const
bool	isPlusZOnY () const
Point	inverse (const Point &p) const
template<typename Vector3D>
void	transformBack (Vector3D &v)
template<typename Vector3D>
void	transform (Vector3D &v)

Data Fields
bool	_posX
bool	_posY

Detailed Description

template<typename TSpace, typename TInternalInteger>
struct DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform

This type is used to cast points from $(x,y,z)$ to $(x \pm z,y \pm z,z)$ and inversely. This is used when recognize a standard plane. Indeed, we only know how to recognize naive planes. So we dilate points of standard planes with this transform so that the standard plane becomes naive. Otherwise said, if $T_{\pm,\pm}: (x,y,z) \mapsto (x \pm z,y \pm z,z)$, then P is a standard plane iff one of $T_{+,+}(P), T_{+,-}(P), T_{-,+}(P), T_{-,-}(P)$ is a naive plane of main axis z.

Definition at line 167 of file COBAGenericStandardPlaneComputer.h.

Member Typedef Documentation

Value

template<typename TSpace, typename TInternalInteger>

typedef Point DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::Value

Definition at line 168 of file COBAGenericStandardPlaneComputer.h.

value_type

template<typename TSpace, typename TInternalInteger>

typedef Point DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::value_type

Definition at line 169 of file COBAGenericStandardPlaneComputer.h.

Constructor & Destructor Documentation

Transform() [1/2]

template<typename TSpace, typename TInternalInteger>

DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::Transform ( )

inline

Definition at line 172 of file COBAGenericStandardPlaneComputer.h.

{}

Transform() [2/2]

template<typename TSpace, typename TInternalInteger>

DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::Transform ( bool posX, bool posY )

inline

Definition at line 173 of file COBAGenericStandardPlaneComputer.h.

: _posX( posX ), _posY( posY ) {}

References _posX, and _posY.

Member Function Documentation

inverse()

template<typename TSpace, typename TInternalInteger>

Point DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::inverse ( const Point & p ) const

inline

Definition at line 186 of file COBAGenericStandardPlaneComputer.h.

      {
        if ( _posX ) {
          if ( _posY ) return Point( p[ 0 ] - p[ 2 ], p[ 1 ] - p[ 2 ], p[ 2 ] );
          else         return Point( p[ 0 ] - p[ 2 ], p[ 1 ] + p[ 2 ], p[ 2 ] );
        } else {
          if ( _posY ) return Point( p[ 0 ] + p[ 2 ], p[ 1 ] - p[ 2 ], p[ 2 ] );
          else         return Point( p[ 0 ] + p[ 2 ], p[ 1 ] + p[ 2 ], p[ 2 ] );
        }
      }

References _posX, and _posY.

isPlusZOnX()

template<typename TSpace, typename TInternalInteger>

bool DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::isPlusZOnX ( ) const

inline

Definition at line 184 of file COBAGenericStandardPlaneComputer.h.

{ return _posX; }

References _posX.

isPlusZOnY()

template<typename TSpace, typename TInternalInteger>

bool DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::isPlusZOnY ( ) const

inline

Definition at line 185 of file COBAGenericStandardPlaneComputer.h.

{ return _posY; }

References _posY.

operator()()

template<typename TSpace, typename TInternalInteger>

Point DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::operator() ( const Point & p ) const

inline

Definition at line 174 of file COBAGenericStandardPlaneComputer.h.

      {
        if ( _posX ) {
          if ( _posY ) return Point( p[ 0 ] + p[ 2 ], p[ 1 ] + p[ 2 ], p[ 2 ] );
          else         return Point( p[ 0 ] + p[ 2 ], p[ 1 ] - p[ 2 ], p[ 2 ] );
        } else {
          if ( _posY ) return Point( p[ 0 ] - p[ 2 ], p[ 1 ] + p[ 2 ], p[ 2 ] );
          else         return Point( p[ 0 ] - p[ 2 ], p[ 1 ] - p[ 2 ], p[ 2 ] );
        }
      }

References _posX, and _posY.

transform()

template<typename TSpace, typename TInternalInteger>

template<typename Vector3D>

void DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::transform ( Vector3D & v )

inline

Definition at line 205 of file COBAGenericStandardPlaneComputer.h.

      {
        if ( _posX ) v[ 2 ] -= v[ 0 ];
        else         v[ 2 ] += v[ 0 ];
        if ( _posY ) v[ 2 ] -= v[ 1 ];
        else         v[ 2 ] += v[ 1 ];
      }

References _posX, and _posY.

transformBack()

template<typename TSpace, typename TInternalInteger>

template<typename Vector3D>

void DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::transformBack ( Vector3D & v )

inline

Definition at line 197 of file COBAGenericStandardPlaneComputer.h.

      {
        if ( _posX ) v[ 2 ] += v[ 0 ];
        else         v[ 2 ] -= v[ 0 ];
        if ( _posY ) v[ 2 ] += v[ 1 ];
        else         v[ 2 ] -= v[ 1 ];
      }

References _posX, and _posY.

Field Documentation

_posX

template<typename TSpace, typename TInternalInteger>

bool DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::_posX

true for +z on x, false for -z on x

Definition at line 170 of file COBAGenericStandardPlaneComputer.h.

Referenced by inverse(), isPlusZOnX(), operator()(), Transform(), transform(), and transformBack().

_posY

template<typename TSpace, typename TInternalInteger>

bool DGtal::COBAGenericStandardPlaneComputer< TSpace, TInternalInteger >::Transform::_posY

true for +z on y, false for -z on y

Definition at line 171 of file COBAGenericStandardPlaneComputer.h.

Referenced by inverse(), isPlusZOnY(), operator()(), Transform(), transform(), and transformBack().

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

• COBAGenericStandardPlaneComputer.h