Vector library - Building pseudo-topology for simple feature access. More...

#include <stdlib.h>
#include <grass/gis.h>
#include <grass/vector.h>
#include <grass/glocale.h>
#include "pg_local_proto.h"
#include <ogr_api.h>

Include dependency graph for build_sfa.c:

Go to the source code of this file.

Functions
int	Vect__build_sfa (struct Map_info *Map, int build)
	Build pseudo-topology (for simple features) - internal use only. More...

int	Vect_fidx_dump (const struct Map_info Map, FILE out)
	Dump feature index to file. More...

Detailed Description

Vector library - Building pseudo-topology for simple feature access.

Higher level functions for reading/writing/manipulating vectors.

Line offset is

centroids : FID
other types : index of the first record (which is FID) in offset array.

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

Author: Radim Blazek; Piero Cavalieri; Various updates for GRASS 7 by Martin Landa <landa.martin gmail.com>

Definition in file build_sfa.c.

Function Documentation

◆ Vect__build_sfa()

int Vect__build_sfa	(	struct Map_info *	Map,
		int	build
	)

Build pseudo-topology (for simple features) - internal use only.

See Vect_build_ogr() and Vect_build_pg() for implementation issues.

Build levels:

GV_BUILD_NONE
GV_BUILD_BASE
GV_BUILD_ATTACH_ISLES
GV_BUILD_CENTROIDS
GV_BUILD_ALL

Parameters

Map	pointer to Map_info structure
build	build level

Returns: 1 on success; 0 on error

Definition at line 694 of file build_sfa.c.

References Plus_head::built, Map_info::format, GV_BUILD_BASE, GV_FORMAT_OGR, GV_FORMAT_OGR_DIRECT, Map_info::plus, and Vect__build_downgrade().

Referenced by Vect_build_ogr(), and Vect_build_pg().

◆ Vect_fidx_dump()

int Vect_fidx_dump	(	const struct Map_info *	Map,
		FILE *	out
	)

Dump feature index to file.

Parameters

Map	pointer to Map_info struct
out	file for output (stdout/stderr for example)

Returns: 1 on success; 0 on error

Definition at line 744 of file build_sfa.c.

References _, Format_info_offset::array, Format_info_offset::array_num, Map_info::fInfo, Map_info::format, G_warning(), GV_FORMAT_OGR, GV_FORMAT_POSTGIS, Format_info_ogr::offset, Format_info_pg::offset, Format_info::ogr, Format_info::pg, Format_info_pg::toposchema_name, Vect_get_finfo_geometry_type(), Vect_get_num_lines(), Vect_maptype(), and Vect_maptype_info().

Functions

Detailed Description

Function Documentation

◆ Vect__build_sfa()

◆ Vect_fidx_dump()