DGtal::concepts::CIncrementalPrimitiveComputer< T > Struct Template Reference

Aim: Defines the concept describing an object that computes some primitive from input points given one at a time, while keeping some internal state. At any moment, the object is supposed to store at least one valid primitive for the formerly given input points. A primitive is an informal word that describes some family of objects that share common characteristics. Often, the primitives are geometric, e.g. digital planes. More...

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

Inheritance diagram for DGtal::concepts::CIncrementalPrimitiveComputer< T >:

Public Types
typedef T::Point	Point
Public Types inherited from DGtal::concepts::CPrimitiveComputer< T >
typedef T::Primitive	Primitive
typedef T::Space	Space

Public Member Functions
	BOOST_CONCEPT_USAGE (CIncrementalPrimitiveComputer)
void	checkConstConstraints () const
Public Member Functions inherited from DGtal::concepts::CPrimitiveComputer< T >
	BOOST_CONCEPT_USAGE (CPrimitiveComputer)
void	checkConstConstraints () const

Private Attributes
T	myX
Point	myPoint
bool	myBool

Detailed Description

template<typename T>
struct DGtal::concepts::CIncrementalPrimitiveComputer< T >

Aim: Defines the concept describing an object that computes some primitive from input points given one at a time, while keeping some internal state. At any moment, the object is supposed to store at least one valid primitive for the formerly given input points. A primitive is an informal word that describes some family of objects that share common characteristics. Often, the primitives are geometric, e.g. digital planes.

Description of concept 'CIncrementalPrimitiveComputer'

Refinement of CPrimitiveComputer

Associated types

• Primitive, the type that defines the primitive.
• Point: the type of the input points.

Notation

• X : A type that is a model of CIncrementalPrimitiveComputer
• x : object of type X
• p : object of type Point

Valid expressions and semantics

Name	Expression	Type requirements	Return type	Precondition	Semantics	Post condition	Complexity
insert new point	x.extend(p)		bool		tries to find a primitive that matches the new point p and all formerly given input points, return true on success (state may change), false otherwise (state is unchanged)
check new point	x.isExtendable(p)		bool		tries to find a primitive that matches the new point p and all formerly given input points, return true only if it possible, the state is always unchanged

Invariants

Models

• COBANaivePlaneComputer, COBAGenericNaivePlaneComputer, ChordNaivePlaneComputer, ChordGenericNaivePlaneComputer, COBAGenericStandardPlaneComputer

Notes

Template Parameters

T	the type that should be a model of CIncrementalPrimitiveComputer.

Definition at line 99 of file CIncrementalPrimitiveComputer.h.

Member Typedef Documentation

Point

template<typename T>

typedef T::Point DGtal::concepts::CIncrementalPrimitiveComputer< T >::Point

Definition at line 104 of file CIncrementalPrimitiveComputer.h.

Member Function Documentation

BOOST_CONCEPT_USAGE()

template<typename T>

DGtal::concepts::CIncrementalPrimitiveComputer< T >::BOOST_CONCEPT_USAGE ( CIncrementalPrimitiveComputer< T > )

inline

Definition at line 107 of file CIncrementalPrimitiveComputer.h.

    {
      ConceptUtils::sameType( myBool, myX.extend( myPoint ) );
      checkConstConstraints();
    }

References checkConstConstraints(), myBool, myPoint, myX, and DGtal::concepts::ConceptUtils::sameType().

checkConstConstraints()

template<typename T>

void DGtal::concepts::CIncrementalPrimitiveComputer< T >::checkConstConstraints ( ) const

inline

Definition at line 112 of file CIncrementalPrimitiveComputer.h.

    {
      ConceptUtils::sameType( myBool, myX.isExtendable( myPoint ) );
    }

References myBool, myPoint, myX, and DGtal::concepts::ConceptUtils::sameType().

Referenced by BOOST_CONCEPT_USAGE().

Field Documentation

myBool

template<typename T>

bool DGtal::concepts::CIncrementalPrimitiveComputer< T >::myBool

private

Definition at line 120 of file CIncrementalPrimitiveComputer.h.

Referenced by BOOST_CONCEPT_USAGE(), and checkConstConstraints().

myPoint

template<typename T>

Point DGtal::concepts::CIncrementalPrimitiveComputer< T >::myPoint

private

Definition at line 119 of file CIncrementalPrimitiveComputer.h.

Referenced by BOOST_CONCEPT_USAGE(), and checkConstConstraints().

myX

template<typename T>

T DGtal::concepts::CIncrementalPrimitiveComputer< T >::myX

private

Definition at line 118 of file CIncrementalPrimitiveComputer.h.

Referenced by BOOST_CONCEPT_USAGE(), and checkConstConstraints().

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

• CIncrementalPrimitiveComputer.h