Detailed Description

Iterator over a Cartesian product of points, which is given by coordinate-wise point sets.

The iteration is done in lexicographic order. Usage:

gsGridIterator<T,CWISE> grid(a,b);

or

gsGridIterator<T,CWISE,d> grid(a,b);

Template Parameters

T	type of the numeric coordinates of the index vector
d	statically known dimension, or dynamic dimension if d = -1 (default value)

Collaboration diagram for gsGridIterator< T, CWISE, d, false >:

Public Member Functions
template<class CwiseContainer >
	gsGridIterator (const CwiseContainer &cwise)
	Constructor using references to the coordinate vectors. More...

index_t	index (const index_t i) const
	Returns the i-th index of the current point.

const integer_iterator &	index_iterator () const
	Returns a reference to the underlying integer lattice iterator.

bool	isBoundary () const
	Returns true if the current point lies on a boundary.

bool	isCeil (int i) const
	Returns true if the i-th coordinate has maximal value.

bool	isFloor (int i) const
	Returns true if the i-th coordinate has minimal value.

index_t	numPoints () const
	Returns the total number of points that are iterated.

point_index	numPointsCwise () const
	Returns the total number of points per coordinate which are iterated.

const gsMatrix< T >	operator[] (const point_index &ti) const
	Returns the point corresponding to tensor index ti. More...

void	reset ()
	Resets the iterator, so that a new iteration over the points may start.

const point_index &	tensorIndex () const
	Returns the tensor index of the current point.

Private Attributes
gsMatrix< T >	m_cur
	Current point pointed at by the iterator.

CwiseData	m_cwise
	List of coordinate-wise values.

integer_iterator	m_iter
	Underlying integer lattice iterator.

Constructor & Destructor Documentation

gsGridIterator ( const CwiseContainer & cwise )

inlineexplicit

Constructor using references to the coordinate vectors.

Parameters

cwise A container of matrices or vectors, each containing the sample points in the respective coordinate

const gsMatrix<T> operator[] ( const point_index & ti ) const

inline

Returns the point corresponding to tensor index ti.

Note: Unlikely to std iterators, the position is not counted from the current position of this, but from the starting point of the iteration

Parameters

ti	a valid tensor index of a point in the iteration sequence