kjb::Ned13_grid_cache Class Reference

This caches a bunch (potentially) of one-degree grids for you. More...

#include <nedgrid.h>

Public Member Functions
	Ned13_grid_cache (const std::vector< std::string > &path=std::vector< std::string >())
virtual	~Ned13_grid_cache ()
	dtor cleans up (releases all grid objects in the cache) More...
const Ned13_one_degree_grid &	fetch (const Ned13_one_degree_grid::IntegralLL &)
	return reference to grid with the given exact NW corner point More...
const Ned13_one_degree_grid &	fetch (double, double)
	reference to grid, reading from cache or loading if necessary More...
const Ned13_one_degree_grid &	fetch (const TopoFusion::pt &p)
	return reference to grid, from cache or loading if necessary More...
size_t	cache_size () const
	return the number of grids in the cache More...

Detailed Description

This caches a bunch (potentially) of one-degree grids for you.

Constructor & Destructor Documentation

kjb::Ned13_grid_cache::Ned13_grid_cache ( const std::vector< std::string > &  path = std::vector<std::string>() )

inline

virtual kjb::Ned13_grid_cache::~Ned13_grid_cache ( )

inlinevirtual

dtor cleans up (releases all grid objects in the cache)

Member Function Documentation

size_t kjb::Ned13_grid_cache::cache_size ( ) const

inline

return the number of grids in the cache

This is useful to prevent your cache from getting TOO big, because those tile files are quite large. So, you can poll the size occasionally, and throw away the cache when it gets excessive.

const Ned13_one_degree_grid & kjb::Ned13_grid_cache::fetch

(

const Ned13_one_degree_grid::IntegralLL &

nw_corner

)

return reference to grid with the given exact NW corner point

const Ned13_one_degree_grid & kjb::Ned13_grid_cache::fetch	(	double	deg_lat,
		double	deg_long
	)

reference to grid, reading from cache or loading if necessary

Returns

reference to grid containing the specified point

Parameters

deg_lat	degrees of latitude of some point within the grid
deg_long	degrees of longitude (negative in USA) of point within grid

const Ned13_one_degree_grid& kjb::Ned13_grid_cache::fetch ( const TopoFusion::pt &  p )

inline

return reference to grid, from cache or loading if necessary

---

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

• /work/kobus/src/lib/topo_cpp/nedgrid.h
• /work/kobus/src/lib/topo_cpp/nedgrid.cpp