Hi All.
I have tried to use v.external on a postgis layer created from a grass
vector layer with v.out.ogr:
GRASS 5.7.-cvs:~ > v.out.ogr input=nuovo dsn=PG:dbname=WGS84_sele layer=new
format=PostgreSQL
Linking with v.external look good:
GRASS 5.7.-cvs:~ > v.external dsn="PG:dbname=WGS84" output=new_link_pg
layer=new
Building topology ...
Feature: 1
Topology was built.
Number of nodes : 2
Number of primitives: 1
Number of points : 0
Number of lines : 1
Number of boundaries: 0
Number of centroids : 0
Number of areas : 0
Number of isles : 0
but when i try to display the vector with d.vect I have an error:
GRASS 5.7.-cvs:~ > d.vect map=new_link_pg color=0:0:0 lcolor=0:0:0
fcolor=170:170:170 display=shape type=point,line,boundary,centroid,area
icon=basic/cross size=5 lsize=8
ERROR: Cannot read feature, FID = 0.
USED SOFTWARE
grass57_exp_2004_05_24
gdal-cvs-20040530
postgis 0.8.2
postgresql7.4.1
Have I wrong or forget something?
Many thanks Giuseppe.
-------------------------------------------------------
Currently it only works if the table in PostGIS has column
'ogc_fid' (integer) probably with more restrictions.
But such column should be created by v.out.ogr I think.
Radim
On Friday 04 June 2004 21:20, giuseppe wrote:
Hi All.
I have tried to use v.external on a postgis layer created from a grass
vector layer with v.out.ogr:
GRASS 5.7.-cvs:~ > v.out.ogr input=nuovo dsn=PG:dbname=WGS84_sele
layer=new format=PostgreSQL
Linking with v.external look good:
GRASS 5.7.-cvs:~ > v.external dsn="PG:dbname=WGS84" output=new_link_pg
layer=new
Building topology ...
Feature: 1
Topology was built.
Number of nodes : 2
Number of primitives: 1
Number of points : 0
Number of lines : 1
Number of boundaries: 0
Number of centroids : 0
Number of areas : 0
Number of isles : 0
but when i try to display the vector with d.vect I have an error:
GRASS 5.7.-cvs:~ > d.vect map=new_link_pg color=0:0:0 lcolor=0:0:0
fcolor=170:170:170 display=shape type=point,line,boundary,centroid,area
icon=basic/cross size=5 lsize=8
ERROR: Cannot read feature, FID = 0.
USED SOFTWARE
grass57_exp_2004_05_24
gdal-cvs-20040530
postgis 0.8.2
postgresql7.4.1
Have I wrong or forget something?
Many thanks Giuseppe.
-------------------------------------------------------