#include <GdalRaster.hh>

Inheritance diagram for GdalRaster:

Collaboration diagram for GdalRaster:

Public Member Functions
	GdalRaster ()

void	createRaster (const std::string &file, int categ=0)

void	createRaster (const std::string &file, const MapFormat &format)

	~GdalRaster ()

int	iget (int x, int y, Scalar *val)

int	iput (int x, int y, Scalar val)

int	get (Coord x, Coord y, Scalar *val)

int	put (Coord x, Coord y, Scalar val)

int	put (Coord x, Coord y)

int	getMinMax (Scalar min, Scalar max)

int	calcMinMax (int band=0)

void	finish ()

int	deleteRaster ()

bool	hasCustomGeotransform ()

int	getExtentInStandardCs (Coord xmin, Coord ymin, Coord xmax, Coord ymax)

Public Member Functions inherited from Raster
virtual	~Raster ()

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

bool	hasMinMax ()

void	setMinMax (Scalar min, Scalar max)

Private Member Functions
void	open (char mode)

void	create (int format)

void	initBuffer ()

void	read (Scalar *buf, int first_row, int num_rows)

void	write (Scalar *buf, int first_row, int num_rows)

void	loadRow (int row, bool writeOperation=false)

void	saveRow ()

	GdalRaster (const GdalRaster &)

GdalRaster &	operator= (const GdalRaster &)

Static Private Member Functions
static void	initGdal ()

Private Attributes
GDALDataset *	f_ds

Scalar *	f_data

int	f_size

int	f_format

int	f_currentRow

int	f_changed

GDALDataset *	f_warped_ds

Additional Inherited Members
Protected Member Functions inherited from Raster
	Raster ()

Protected Attributes inherited from Raster
Scalar	f_scalefactor

std::string	f_file

Header	f_hdr

Detailed Description

Manages raster files with GDAL (Geospatial Data Abstraction Library - http://www.remotesensing.org/gdal/index.html)

Definition at line 51 of file GdalRaster.hh.

Constructor & Destructor Documentation

GdalRaster::GdalRaster ( )

inline

Definition at line 56 of file GdalRaster.hh.

GdalRaster::~GdalRaster ( )

Destructor

Definition at line 281 of file GdalRaster.cpp.

References f_data, f_ds, Raster::f_file, and saveRow().

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GdalRaster::GdalRaster ( const GdalRaster & )

private

Member Function Documentation

int GdalRaster::calcMinMax ( int band = 0 )

Find the minimum and maximum values in 'band'.

Definition at line 765 of file GdalRaster.cpp.

References Raster::f_hdr, iget(), min(), Header::minmax, Header::nband, Header::vmax, Header::vmin, Header::xdim, and Header::ydim.

Referenced by getMinMax().

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void GdalRaster::create ( int format )

private

Create a new raster file based on 'hdr'.

Definition at line 442 of file GdalRaster.cpp.

References MapFormat::ByteASC, MapFormat::ByteHFA, GDAL_Format::dataType, Log::error(), f_ds, Raster::f_file, f_format, Raster::f_hdr, MapFormat::FloatingASC, MapFormat::FloatingHFA, GDAL_Format::GDalDriverName, MapFormat::GreyTiff100, Header::gt, initBuffer(), Log::instance(), Header::nband, Header::noval, Header::proj, Log::warn(), Header::xdim, and Header::ydim.

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void GdalRaster::createRaster	(	const std::string &	file,
		int	categ = `0`
	)

virtual

Open an existing file – read only. If 'categ' != 0 this is a categorical map (ie it can't be interpolated). Othewise this is a continuos map.

Implements Raster.

Reimplemented in RemoteRaster, and WcsProxyRaster.

void GdalRaster::createRaster	(	const std::string &	file,
		const MapFormat &	format
	)

virtual

Create a new file for projections.

Parameters

file	is the name of the output file
format	is the output format specification.

Implements Raster.

Reimplemented in RemoteRaster, and WcsProxyRaster.

int GdalRaster::deleteRaster ( )

virtual

Method to delete a raster.

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

Implements Raster.

Reimplemented in RemoteRaster, and WcsProxyRaster.

Definition at line 931 of file GdalRaster.cpp.

References f_ds, and Raster::f_file.

void GdalRaster::finish ( )

virtual

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

Reimplemented from Raster.

Reimplemented in RemoteRaster, and WcsProxyRaster.

Definition at line 873 of file GdalRaster.cpp.

References MapFormat::ByteASC, Log::error(), f_ds, Raster::f_file, f_format, MapFormat::FloatingASC, Log::instance(), saveRow(), and Log::warn().

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int GdalRaster::get	(	Coord	x,
		Coord	y,
		Scalar *	val
	)

virtual

Fills '*val' with the map value at (x,y). Returns zero if (x,y) is out of range.

Implements Raster.

Definition at line 683 of file GdalRaster.cpp.

References Header::convertLonLat2XY(), Raster::f_hdr, iget(), Header::nband, Header::noval, Header::xdim, and Header::ydim.

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int GdalRaster::getExtentInStandardCs	(	Coord *	xmin,
		Coord *	ymin,
		Coord *	xmax,
		Coord *	ymax
	)

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