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NAME

v.out.ogr - Convert to one of the supported OGR vector formats.

KEYWORDS

vector

SYNOPSIS

v.out.ogr
v.out.ogr help
v.out.ogr [-cep] input=name [type=string[,string,...]] dsn=string olayer=string [layer=integer] [format=string] [dsco=string] [lco=string]

Flags:

-c
Export features with category (labeled) only. Otherwise all features are exported
-e
Use ESRI-style .prj file format (applies to SHAPE output only)
-p
Export lines as polygons

Parameters:

input=name
Name of input vector map
type=string[,string,...]
Feature type. Combination of types is not supported by all formats.
Options: point,kernel,centroid,line,boundary,area,face
Default: line,boundary
dsn=string
OGR output datasource name. For example:
ESRI Shapefile: filename or directory for storage
MapInfo File: filename or directory for storage
olayer=string
OGR layer name.
ESRI Shapefile: shapefile name
MapInfo File: mapinfo file name
layer=integer
Layer number
Default: 1
format=string
OGR format.
Options: ESRI_Shapefile,MapInfo_File,TIGER,S57,DGN,Memory,CSV,GML,KML,GMT,SQLite,ODBC,PostgreSQL,MySQL
Default: ESRI_Shapefile
dsco=string
OGR dataset creation option (format specific, NAME=VALUE)
Default:
lco=string
OGR layer creation option (format specific, NAME=VALUE)
Default:

DESCRIPTION

v.out.ogr converts GRASS vector data to OGR format. OGR (Simple Features Library) is part of the GDAL library, so you need to install gdal to use v.out.ogr.
To export areas with holes into, e.g., a SHAPE file, while keeping the holes as holes, the flag -c has to be used.

Supported OGR Vector Formats

ESRI Shapefile
CSV
GML
KML
Mapinfo File
PostgreSQL/PostGIS
TIGER

For further available drivers go here.

EXAMPLES

Export to SHAPE

Export lines from GRASS vector map to SHAPE format (generates /tmp/testogr.shp and related files):
v.out.ogr input=multi type=line dsn=/tmp olayer=testogr 
Export areas from GRASS vector map to SHAPE format (generates /tmp/testogr.shp and related files):
v.out.ogr input=multi type=area dsn=/tmp olayer=testogr 

Export to GML

Export lines from GRASS vector map to GML format (generates /tmp/testogr.gml file with layer 'testogr'):
v.out.ogr input=multi type=line dsn=/tmp/testogr.gml olayer=testogr format=GML 

Export to PostgreSQL/PostGIS

Export areas from GRASS vector map directly to PostGIS:
v.out.ogr input=polygons type=area \
          dsn="PG:host=localhost dbname=postgis user=postgres" \
          olayer=polymap format=PostgreSQL

Export to KML (Google Earth)

Export faces (3D vectors) from GRASS vector map in KML format for Google Earth:
v.out.ogr in=buildings_3d dsn=buildings_3d.kml olayer=buildings_3d format=KML type=face

REFERENCES

OGR vector library
OGR vector library C API documentation

SEE ALSO

v.external, v.in.ogr

AUTHORS

Radim Blazek, ITC-Irst, Trento, Italy
Some contributions: Markus Neteler

Last changed: $Date: 2006/06/13 16:17:53 $


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