#include <gls_map_geotiff.h>

Inheritance diagram for disti::GeoTIFFMapChartDataSource:

Public Member Functions
	GeoTIFFMapChartDataSource (void)

virtual	~GeoTIFFMapChartDataSource ()

void	LoadGeoTIFF (const std::string &str)

void	UnloadGeoTIFF (const std::string &str)

void	SetTargetCellLoadRate (const double targetCellLoadRate)

double	GetTargetCellLoadRate (void) const

virtual bool	GetAvailableCoverage (GeoRect *dest)

virtual unsigned long	GetBestLayer (GlsMapView view, GlsMapChart chart)

virtual void	GetCellList (const GeoRect &coverage, unsigned long layerID, MapChartCellList *viewList)

virtual void	PostDraw (GlsMapView view, GlsMapChart chart)

void	SetCacheCount (const unsigned int cacheCount)

unsigned int	GetCacheCount (void) const

Public Member Functions inherited from disti::GlsMapChartDataSource
virtual	~GlsMapChartDataSource ()

virtual bool	AreAllCellsLoaded (GlsMapView view, GlsMapChart chart)

Protected Member Functions
void	SearchDirectory (const std::string &entity, const std::string &originalLoadString)

void	LoadGeoTIFF (const std::string &str, const std::string &originalLoadString)

Protected Member Functions inherited from disti::GlsMapChartDataSource
	GlsMapChartDataSource ()

Protected Attributes
GeoRect	_extents

std::vector< GeoTIFFImageHolder * >	_imageHolders

Detailed Description

Runtime implementation of a GlsMapGeoTIFF

Constructor & Destructor Documentation

disti::GeoTIFFMapChartDataSource::GeoTIFFMapChartDataSource ( void )

Create a new GlsMapGeoTIFF.

virtual disti::GeoTIFFMapChartDataSource::~GeoTIFFMapChartDataSource ( )

virtual

Destructs a GlsMapGeoTIFF object

Member Function Documentation

virtual bool disti::GeoTIFFMapChartDataSource::GetAvailableCoverage ( GeoRect * dest )

virtual

Sets a GeoRect to describe the area containing all areas covered by this MapDataSource. This area may change as different databases are loaded. Calling this method may be slow.

Parameters

dest	Pointer to a GeoRect to recieve the coverage.

Returns: true on success (dest contains the coverage description) or false if there was an error (dest is undefined)

Implements disti::GlsMapChartDataSource.

virtual unsigned long disti::GeoTIFFMapChartDataSource::GetBestLayer	(	GlsMapView *	view,
		GlsMapChart *	chart
	)

virtual

Returns the cell layer ('zoom level') that best matches the given area.

Parameters

view	The GlsMapView used to draw the chart
chart	The GlsMapChart that is being drawn

Returns: The recommended layer to use.

Implements disti::GlsMapChartDataSource.

virtual void disti::GeoTIFFMapChartDataSource::GetCellList	(	const GeoRect &	coverage,
		unsigned long	layerID,
		MapChartCellList *	viewList
	)

virtual

Get the list of the available cells in a given coverage area. The caller will AddRef() any of the cells that it will be holding a reference to.

Parameters

coverage	GeoRect describing the requested area.
layerID	Which layer to return MapCells from.
viewList	Pointer MapChartCellList to recieve the list of available cells

Implements disti::GlsMapChartDataSource.

double disti::GeoTIFFMapChartDataSource::GetTargetCellLoadRate ( void ) const

Get the target rate in hz at which cells will be loaded

Returns: target rate in hz else 0.0 for no target rate ( i.e. load as quickly as possible )

void disti::GeoTIFFMapChartDataSource::LoadGeoTIFF ( const std::string & str )

Load one or more GeoTIFF images.

Parameters

str	A string containing one filename, a comma separated list of filenames a directory to parse, recursively, looking for files to load.

virtual void disti::GeoTIFFMapChartDataSource::PostDraw	(	GlsMapView *	view,
		GlsMapChart *	chart
	)

inlinevirtual

Called after all the cells have been drawn to allow the data source to perform additional rendering if needed.

Parameters

view	The GlsMapView used to draw the chart
chart	The GlsMapChart that is being drawn

Reimplemented from disti::GlsMapChartDataSource.

void disti::GeoTIFFMapChartDataSource::SetCacheCount ( const unsigned int cacheCount )

Set the count of the layer cache

Parameters

cacheCount max number of layers to cache else 0u to disable layer caching

void disti::GeoTIFFMapChartDataSource::SetTargetCellLoadRate ( const double targetCellLoadRate )

Set the target rate in hz at which cells will be loaded

Parameters

targetCellLoadRate target rate in hz else 0.0 for no target rate ( i.e. load as quickly as possible )

void disti::GeoTIFFMapChartDataSource::UnloadGeoTIFF ( const std::string & str )

Unload one or more GeoTIFF images.

Parameters

str	Must be the same string passed to LoadGeoTIFF

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

gls_map_geotiff.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation