[postgis-users] couldn't get the correct projected values
orkun
temiz at deprem.gov.tr
Fri May 16 01:00:03 PDT 2008
hello
whatever I have done, I couldn't get the correct projected values in
postgis environment.
1. # lon/lat to utm projection
create table izmir_il4 as select
gid,il_kod,iladi,transform(the_geom,32635) as the_geom from il_izmir3;
2.
update izmir_il4 set the_geom=setsrid(the_geom,32635);
3.
select extent(the_geom) from izmir_il4;
extent
--------------------------------------------------------------------------
BOX(26.2226982116699 37.8668251037598,28.4587249755859 39.3925666809082)
but these are not utm values. They are still in lon/lat values
I checked extent values with proj values. I got correct values:
echo "26.2226982116699 37.8668251037598" | proj +proj=utm +zone=35
+ellps=WGS84 +datum=WGS84
431631.23 4191323.84
orkun at orkun-desktop:/usr/local/izmir/veri/izmir3$ echo "28.4587249755859
39.3925666809082" | proj +proj=utm +zone=35 +ellps=WGS84 +datum=WGS84
625615.27 4361356.53
how can get values generated from "proj" in postgis environment ?
what am I doing wrong ?
here is the srid values of 32635 :
32635 | +proj=utm +zone=35 +ellps=WGS84 +datum=WGS84 +units=m +no_defs
regards
--
Ahmet Temiz
Jeo. Müh.
Afet İşleri Gen. Md.lüğü
Deprem Ar. D.
Ahmet Temiz
Geo. Eng.
General Dir. of
Disaster Affairs
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