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<p class=MsoNormal>Hi,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> I seem to have blind spot somewhere. I can convert
wgs->google coordinate system fine:<o:p></o:p></p>
<p class=MsoNormal>select astext(transform(geomfromtext('POINT(-22.19921875
1.47265625)',4326), 900913));<o:p></o:p></p>
<p class=MsoNormal> -> "POINT(-2471205.72725849
163953.396913543)"<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>But when try to convert it back:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>select
st_asewkt(transform(geomfromtext('POINT(-2471205.72725849
163953.396913543)',900913), 4326));<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>then I get absurd numbers:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> -> "SRID=4326;POINT(-3.48051770446448e-06
2.30891282668362e-07)"<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>And there is also message: WARNING: transform: -38
(failed to load NAD27-83 correction file)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In other machine (windows btw) same query works fine. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>After restart of the database (postgis which is debian) it
worked exactly one time. See 2 identical queries in a row:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>gis=# select
st_asewkt(st_transform(geomfromtext('POINT(-2471205.72725849
163953.396913543)',900913), 4326));<o:p></o:p></p>
<p class=MsoNormal>
st_asewkt<o:p></o:p></p>
<p class=MsoNormal>------------------------------------------------<o:p></o:p></p>
<p class=MsoNormal> SRID=4326;POINT(-22.19921875 1.47265624999999)<o:p></o:p></p>
<p class=MsoNormal>(1 row)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>gis=# select
st_asewkt(st_transform(geomfromtext('POINT(-2471205.72725849
163953.396913543)',900913), 4326));<o:p></o:p></p>
<p class=MsoNormal>WARNING: transform: -38 (failed to load NAD27-83
correction file)<o:p></o:p></p>
<p class=MsoNormal>
st_asewkt<o:p></o:p></p>
<p class=MsoNormal>-------------------------------------------------------------<o:p></o:p></p>
<p class=MsoNormal> SRID=4326;POINT(-3.48051770446448e-06
2.30891282668362e-07)<o:p></o:p></p>
<p class=MsoNormal>(1 row)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Reinstalling postgis packages, including proj did not help.
I have postgres 8.3 with 1.3.3-3 (from postgresql-8.3-postgis debian package).
I triad also with 1.3.5 postgis which was latest debian package what I found,
same thing<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Also I do not get what all this has to do with “NAD27-83
correction”<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>/Jaak Laineste<o:p></o:p></p>
<p class=MsoNormal>jaak@nutiteq.com<o:p></o:p></p>
<p class=MsoNormal>Skype: nutiteq<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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