gdal.c File Reference

Raster Library - Utilization of GDAL library. More...

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <grass/config.h>
#include <grass/gis.h>
#include <grass/raster.h>
#include <grass/gprojects.h>
#include <grass/glocale.h>
#include "R.h"
#include <gdal.h>

Include dependency graph for gdal.c:

Go to the source code of this file.

Functions
void	Rast_init_gdal (void)
	Initialization.
struct GDAL_link *	Rast_get_gdal_link (const char *name, const char *mapset)
	Get GDAL link settings for given raster map.
struct GDAL_link *	Rast_create_gdal_link (const char *name, RASTER_MAP_TYPE map_type)
	Create GDAL settings for given raster map.
void	Rast_close_gdal_link (struct GDAL_link *gdal)
	Close existing GDAL link.
int	Rast_close_gdal_write_link (struct GDAL_link *gdal)
	Close existing GDAL link and write out data.
CPLErr	Rast_gdal_raster_IO (GDALRasterBandH band, GDALRWFlag rw_flag, int x_off, int y_off, int x_size, int y_size, void *buffer, int buf_x_size, int buf_y_size, GDALDataType buf_type, int pixel_size, int line_size)
	Input/output function for GDAL links.

Detailed Description

Raster Library - Utilization of GDAL library.

(C) 2010 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

Glynn Clements

Definition in file gdal.c.

Function Documentation

Rast_close_gdal_link()

void Rast_close_gdal_link

(

struct GDAL_link *

gdal

)

Close existing GDAL link.

Parameters

gdal	pointer to GDAL_link to be closed

Definition at line 380 of file gdal.c.

References GDAL_link::data, GDAL_link::filename, and G_free().

Rast_close_gdal_write_link()

int Rast_close_gdal_write_link

(

struct GDAL_link *

gdal

)

Close existing GDAL link and write out data.

Parameters

gdal	pointer to GDAL_link to be closed

Returns

1 on success

-1 on failure

Definition at line 395 of file gdal.c.

References _, GDAL_link::data, FALSE, GDAL_link::filename, G_free(), G_strcasecmp(), G_warning(), NULL, and st.

Rast_create_gdal_link()

struct GDAL_link * Rast_create_gdal_link	(	const char *	name,
		RASTER_MAP_TYPE	map_type
	)

Create GDAL settings for given raster map.

Parameters

name	map name
map_type	map type (CELL, FCELL, DCELL)

Returns

pointer to allocated GDAL_link structure

NULL on error

Definition at line 227 of file gdal.c.

References _, GDAL_link::band, GDAL_link::band_num, CELL_TYPE, GDAL_link::data, DCELL_TYPE, FCELL_TYPE, GDAL_link::filename, G_calloc, G_create_key_value(), G_fatal_error(), G_fopen_new_misc(), G_free_key_value(), G_fwrite_key_value(), G_get_projepsg(), G_get_projinfo(), G_get_projunits(), G_initialize_done(), G_is_initialized(), G_message(), G_set_key_value(), G_store(), G_warning(), GPATH_MAX, GPJ_grass_to_wkt2(), GDAL_link::hflip, name, R__::nbytes, NULL, GDAL_link::null_val, Rast__init_window(), Rast_init_gdal(), Rast_set_d_null_value(), st, GDAL_link::type, GDAL_link::vflip, and R__::wr_window.

Rast_gdal_raster_IO()

CPLErr Rast_gdal_raster_IO	(	GDALRasterBandH	band,
		GDALRWFlag	rw_flag,
		int	x_off,
		int	y_off,
		int	x_size,
		int	y_size,
		void *	buffer,
		int	buf_x_size,
		int	buf_y_size,
		GDALDataType	buf_type,
		int	pixel_size,
		int	line_size
	)

Input/output function for GDAL links.

See GDAL's RasterIO for details.

Definition at line 427 of file gdal.c.

Rast_get_gdal_link()

struct GDAL_link * Rast_get_gdal_link	(	const char *	name,
		const char *	mapset
	)

Get GDAL link settings for given raster map.

Parameters

name	map name
mapset	name of mapset

Returns

pointer to GDAL_link structure

NULL if link not found

Definition at line 53 of file gdal.c.

References GDAL_link::band, GDAL_link::band_num, CELL_TYPE, GDAL_link::data, DCELL_TYPE, FCELL_TYPE, GDAL_link::filename, G_calloc, G_find_key_value(), G_find_raster2(), G_fopen_old_misc(), G_fread_key_value(), G_store(), G_strcasecmp(), GDAL_link::hflip, name, NULL, GDAL_link::null_val, Rast_init_gdal(), Rast_map_type(), Rast_set_d_null_value(), GDAL_link::type, and GDAL_link::vflip.

Referenced by Rast__open_old().

Rast_init_gdal()

void Rast_init_gdal

(

void

)

Initialization.

Register all GDAL drivers.

Definition at line 33 of file gdal.c.

References G_initialize_done(), and G_is_initialized().

Referenced by Rast_create_gdal_link(), Rast_get_gdal_link(), and Rast_init_all().