GridIterator< T, N, Order > Class Template Reference

Iterator over the integer points in an N-dimensional grid. More...

#include <geomc/shape/GridIterator.h>

Inheritance diagram for GridIterator< T, N, Order >:

Public Types
typedef PointType< T, N >::point_t	point_t
	Type of coordinate to be iterated over.

Public Member Functions
	GridIterator (const point_t &lo, const point_t &hi)
	GridIterator (const Rect< T, N > &r)
	GridIterator (const Rect< T, N > &r, const point_t &p)
GridIterator< T, N, Order >	begin () const
GridIterator< T, N, Order >	end () const

Public Attributes
point_t	pt
	Current point.
const Rect< T, N >	region
	Region over which to iterate.

Static Public Attributes
static constexpr ArrayOrder	order = Order
	Array order (row-major or column-major)

Friends
class	boost::iterator_core_access

Detailed Description

template<typename T, index_t N, ArrayOrder Order>
class geom::GridIterator< T, N, Order >

Iterator over the integer points in an N-dimensional grid.

Template Parameters

T	Type of coordinate (integer type recommended).
N	Dimension of rectangle to iterate over.
Order	Row- or column-major iteration.

This class accepts an N-dimensional rectangular region to iterate over, and returns points on the unit-spaced grid within than region. Row- or column-major order may be selected with the ArrayOrder template parameter.

GridIterators support all the standard operators expected of a random-access iterator:

GridIterator<int,3> i = ... ;
Vec<int,3> pt = *i;
++i; 
--i;
i += 10;
i1 - i2;
// etc.

Constructor & Destructor Documentation

GridIterator() [1/3]

template<typename T, index_t N, ArrayOrder Order>

GridIterator ( const Rect< T, N > & r )

inline

Construct an iterator over the region r pointing to the first grid point.

GridIterator() [2/3]

template<typename T, index_t N, ArrayOrder Order>

GridIterator ( const Rect< T, N > & r, const point_t & p )

inline

Construct an interator over the region r pointing at the point given by p.

Parameters

r	A region
p	A point inside r.

GridIterator() [3/3]

template<typename T, index_t N, ArrayOrder Order>

GridIterator ( const point_t & lo, const point_t & hi )

inline

Construct an iterator over the region bounded by the points lo and hi, pointing at the first cell.

Parameters

lo	Lower extreme of the region (inclusive).
hi	Upper extreme of the region (exclusive).

Member Function Documentation

begin()

template<typename T, index_t N, ArrayOrder Order>

GridIterator< T, N, Order > begin ( ) const

inline

Returns

An iterator pointing to the lower-most coordinate of the grid

end()

template<typename T, index_t N, ArrayOrder Order>

GridIterator< T, N, Order > end ( ) const

inline

Returns

An iterator pointing just beyond the upper-most coordinate of the grid.

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

• geomc/shape/GridIterator.h