hello
I want to transfer grass vector (line) to postgis by this command:
v.out.ogr input=hey_el86 type=line dsn="PG:host=localhost dbname=bzk2 user=postgres" olayer=shey_el86 format=PostgreSQL
at postgis side:
SELECT cat, isclosed(wkb_geometry) from shey_el86;
cat | isclosed
-----+----------
1 | t
...
all closed ring. It shouldn't happen.
They shoud be all line with different starting and end coord points.
select cat,astext(pointn(wkb_geometry,1)) as first_pt ,astext(pointn(wkb_geometry,npoints(wkb_geometry))) as last_pt from shey_el86 ;
gives :
cat | first_pt | last_pt
-----+------------------------------------------+------------------------------------------
1 | POINT(468597.760453644 4630916.47967991) | POINT(468597.760453644 4630916.47967991)
you see first point and last point are the same.
I checked the view from the grass monitor. They should not be closed ring.
how can I solve the problem ?
regards
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