Changes between Version 25 and Version 26 of Grass7/VectorLib/PostGISInterface

Timestamp:

Nov 27, 2012, 8:56:50 AM (11 years ago)

Author:

martinl

Comment:

read example

Grass7/VectorLib/PostGISInterface

@@ -29 +29 @@
 GRASS-PostGIS provider allows to read and write PostGIS data stored as simple features on ''level 1'' (without topology) and also on ''level 2'' (in this case a pseudo-topology is built over simple features).
 
-'''Export example:'''
+'''Export GRASS vector data to PostGIS as simple features:'''
+
+{{{
+v.out.postgis input=urbanarea dsn=PG:dbname=grass
+}}}
 
 '''Read example:'''
+
+{{{
+# create a link to PostGIS table
+v.external dsn=PG:dbname=grass layer=urbanarea
+# access data as normal vector map in GRASS
+v.info map=urbanarea
+...
+|----------------------------------------------------------------------------|
+ | Map format:      PostGIS (PostgreSQL)                                      |
+ | DB table:        public.urbanarea                                          |
+ | DB name:         grass                                                     |
+ | Geometry column: geom                                                      |
+ | Feature type:    polygon                                                   |
+ | Topology:        pseudo (simple features)                                  |
+ |----------------------------------------------------------------------------|
+...
+}}}
 
 '''Write example:'''