A common interface to rasters. More...

#include <Raster.hh>

Inheritance diagram for Raster:

Collaboration diagram for Raster:

Public Member Functions
virtual	~Raster ()
virtual void	createRaster (const std::string &source, int categ=0)=0
virtual void	createRaster (const std::string &source, const MapFormat &format)=0
Header &	header ()
int	isCategorical () const
Coord	xMin () const
Coord	yMin () const
Coord	xMax () const
Coord	yMax () const
int	dimX () const
int	dimY () const
Coord	celX () const
Coord	celY () const
Scalar	noVal () const
int	numBand () const
virtual int	get (Coord px, Coord py, Scalar *val)=0
virtual int	put (Coord px, Coord py, Scalar val)=0
virtual int	put (Coord px, Coord py)=0
virtual int	getMinMax (Scalar min, Scalar max)=0
bool	hasMinMax ()
void	setMinMax (Scalar min, Scalar max)
virtual void	finish ()
virtual int	deleteRaster ()=0
virtual bool	hasCustomGeotransform ()
virtual int	getExtentInStandardCs (Coord xmin, Coord ymin, Coord xmax, Coord ymax)
Protected Member Functions
	Raster ()
Protected Attributes
Scalar	f_scalefactor
std::string	f_file
Header	f_hdr

Detailed Description

A common interface to rasters.

Definition at line 44 of file Raster.hh.

Constructor & Destructor Documentation

Raster::~Raster ( ) [virtual]

Definition at line 55 of file Raster.cpp.

Raster::Raster ( ) [inline, protected]

Definition at line 194 of file Raster.hh.

Member Function Documentation

Coord Raster::celX ( ) const [inline]

Returns the longitudinal cell dimension.

Definition at line 99 of file Raster.hh.

Referenced by Map::getCell().

Coord Raster::celY ( ) const [inline]

Returns the latitudinal cell dimension.

Definition at line 102 of file Raster.hh.

Referenced by Map::getCell().

virtual void Raster::createRaster	(	const std::string &	source,
		int	categ = `0`
	)		`[pure virtual]`

Method to create a raster representation (needed by RasterFactory).

Parameters:

source	A string pointing to a raster source (file name, URL, etc.)
categ	Indicates if the raster is categorical or not

Implemented in RemoteRaster, TerralibRaster, WcsProxyRaster, and GdalRaster.

Referenced by RasterFactory::create().

virtual void Raster::createRaster	(	const std::string &	source,
		const MapFormat &	format
	)		`[pure virtual]`

Method to create a raster representation (needed by RasterFactory).

Parameters:

source	A string pointing to a raster source (file name, URL, etc.)
format	Map format

Implemented in RemoteRaster, WcsProxyRaster, TerralibRaster, and GdalRaster.

virtual int Raster::deleteRaster ( ) [pure virtual]

Method to delete a raster.

Returns:: 1 if the raster was successfully deleted, 0 otherwise.

Implemented in GdalRaster, TerralibRaster, RemoteRaster, and WcsProxyRaster.

Referenced by Map::deleteRaster().

int Raster::dimX ( ) const [inline]

Returns the longitudinal map dimension.

Definition at line 93 of file Raster.hh.

Referenced by Map::getDim(), and Map::getRowColumn().

int Raster::dimY ( ) const [inline]

Returns the latitudinal map dimension.

Definition at line 96 of file Raster.hh.

Referenced by Map::getDim(), and Map::getRowColumn().

virtual void Raster::finish ( ) [inline, virtual]

Event that must be called to indicate when the projection is finished.

Reimplemented in GdalRaster, RemoteRaster, and WcsProxyRaster.

Definition at line 154 of file Raster.hh.

Referenced by Map::finish().

virtual int Raster::get	(	Coord	px,
		Coord	py,
		Scalar *	val
	)		`[pure virtual]`

Fills '*val' with the map value at (x,y).

Parameters:

px	Longitude
py	Latitude
val	Value

Returns:: zero if (x,y) is out of range.

Implemented in GdalRaster, and TerralibRaster.

Referenced by Map::get().

virtual int Raster::getExtentInStandardCs	(	Coord *	xmin,
		Coord *	ymin,
		Coord *	xmax,
		Coord *	ymax
	)		`[inline, virtual]`

Calculates the raster extent in openModeller's standard coordinate system. IMPORTANT: Call this only if hasCustomGeotransform returns true. When interacting with Map objects, use Map.getExtent instead, which encapsulates a call to this method when necessary. For some projections, such as lambert azimuth equal area, getting the raster extent through manual coordinate conversion, as was usually done in the Map.getExtent, can be problematic. This method provides a way for raster implementations to better perform the task of calculating the extent.

Parameters: