open_nat.c File Reference

Vector library - open vector map (native format) - level 1. More...

#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <grass/vector.h>
#include <grass/glocale.h>
#include "local_proto.h"

Include dependency graph for open_nat.c:

Go to the source code of this file.

Functions
int	V1_open_old_nat (struct Map_info *Map, int update)
	Open existing vector map (level 1) More...
int	V1_open_new_nat (struct Map_info *Map, const char *name, int with_z)
	Create new vector map (level 1) More...

Detailed Description

Vector library - open vector map (native format) - level 1.

Higher level functions for reading/writing/manipulating vectors.

(C) 2001-2009 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

Original author CERL, probably Dave Gerdes or Mike Higgins.

Update to GRASS 5.7 Radim Blazek and David D. Gray.

Definition in file open_nat.c.

Function Documentation

V1_open_new_nat()

int V1_open_new_nat	(	struct Map_info *	Map,
		const char *	name,
		int	with_z
	)

Create new vector map (level 1)

Parameters

[out]	Map	pointer to Map_info structure
	name	vector map name to be created
	with_z	2D or 3D (unused?)

Returns

0 success

-1 error

Definition at line 95 of file open_nat.c.

References Version_info::back_major, Version_info::back_minor, dig_head::coor_version, dig__byte_order_out(), dig__write_head(), dig_file_init(), Map_info::dig_fp, dig_init_portable(), gvfile::file, G_debug(), G_fopen_modify(), G_fopen_new(), GPATH_MAX, GV_COOR_EARLIEST_MAJOR, GV_COOR_EARLIEST_MINOR, GV_COOR_ELEMENT, GV_COOR_VER_MAJOR, GV_COOR_VER_MINOR, GV_TOPO_ELEMENT, Map_info::head, Version_info::major, Version_info::minor, NULL, dig_head::port, Map_info::temporary, Vect__get_element_path(), and Vect__get_path().

V1_open_old_nat()

int V1_open_old_nat	(	struct Map_info *	Map,
		int	update
	)

Open existing vector map (level 1)

Map->name and Map->mapset must be set before.

Parameters

Map	pointer to Map_info structure
update	non-zero for write mode, otherwise read-only

Returns

0 success

-1 error

Definition at line 39 of file open_nat.c.

References _, dig__read_head(), dig_file_init(), Map_info::dig_fp, gvfile::file, G_debug(), G_fopen_modify(), G_fopen_old(), G_warning(), GPATH_MAX, GV_COOR_ELEMENT, Map_info::head, Map_info::mapset, Map_info::name, NULL, dig_head::size, Coor_info::size, Vect__get_path(), Vect_coor_info(), and Vect_get_full_name().