Hi Jaak,<div><br></div><div><div>900913 uses the "null" gridshift to convert ellipsoids (WGS84 <> Sphere) without doing proper calculations (ie. just plain ignoring that WGS84 isn't a sphere).</div><div>
<br></div></div><div>Where did your proj build come from? There was a problem with the Debian/Ubuntu packaging a while back where the grid-shift files were marked as being applicable to both 32 & 64 bit, when they're not. So if you weren't on the architecture which it was built on, weird gridshift-errors would come about.<br>
<div><br></div><div><a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=530818">http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=530818</a></div><div><br></div><div>Rob :)</div><div><br></div></div>