Sorry for answering in English, but maybe it's a geodetic problem as Seino-san says.<div>I remember a case in my previous work, where all address points had a drift .. I don't remember it was 200m more or less, but the reason then was indeed the projection.</div>

<div>I think there is a problem with EPSG 4612, which has multiple definitions for the same code number. It was the case for the drift, and after changing the datum definition, it was OK. I just don't remember exactly which value it was.</div>

<div><br></div><div>Maybe also more information here, but sorry if I just chose a useless link:</div><div><a href="http://www.yaskey.cside.tv/mapserver/note/gis.html">http://www.yaskey.cside.tv/mapserver/note/gis.html</a></div>

<div><br></div><div>In case you use PostGIS for example it's important that everyone uses the "right" EPSG 4612 definition, I think.</div><div>I'm not sure which tools are used to import the data, but this should be the <u>4612</u> parameters that work:</div>

<div><font class="Apple-style-span" face="'courier new', monospace">+proj=longlat +ellps=GRS80 +towgs84=0.078,-0.505,-0.253,0,0,0,0 +no_defs</font></div><div><br></div><div>Or other PostGIS output:</div><div><font class="Apple-style-span" face="'courier new', monospace">GEOGCS["JGD2000",DATUM["Japanese_Geodetic_Datum_2000",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6612"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4612"]]</font></div>

<div><br></div><div>Daniel</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><br><div class="gmail_quote">2010/7/10  <span dir="ltr"><<a href="mailto:say.no00@gmail.com">say.no00@gmail.com</a>></span><br>

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2010$BG/(B7$B7n(B10$BF|(B23:25 ribbon <<a href="mailto:osm@ns.ribbon.or.jp">osm@ns.ribbon.or.jp</a>>:<br>
<div><div></div><div class="h5">> On Sat, Jul 10, 2010 at 10:40:16PM +0900, Tomomichi Hayakawa wrote:<br>
><br>
>> $B?9NS%G!<%?$rB?$/%$%s%]!<%H$7$^$7$?$,!"(B<br>
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> <a href="http://ja.wikipedia.org/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Kuki4.jpg" target="_blank">http://ja.wikipedia.org/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Kuki4.jpg</a><br>
><br>
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><br>
> oota<br>
><br>
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><br>
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</div></div></blockquote></div><br></div>