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<div><font face="Georgia, Times New Roman, Times, Serif"> The .prj file is in Well Known Text format (WTK) documented here:<br>
http://www.geoapi.org/2.0/javadoc/org/opengis/referencing/doc-files/WKT.html<br>
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Geocart (for example) requires the .prj file to be present, does inspect it, but requires its contents to declare the GEOG projection in order to make use of the Shapefile. Therefore at least one program trusts and “uses” the contents of the .prj file.<br>
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</font><font color="black" face="arial" size="2"><font face="Georgia, Times New Roman, Times, Serif">Geocart does not inspect the .sbn file. </font></font><br>
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Regards,<br>
— daan Strebe<br>
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<div style="font-family:helvetica,arial;font-size:10pt;color:black">-----Original Message-----<br>
From: support.mn@elisanet.fi<br>
To: proj@lists.maptools.org<br>
Sent: Thu, May 26, 2011 2:50 pm<br>
Subject: [Proj] esri shape files<br>
<br>
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<pre style="font-size: 9pt;"><tt>Hello,
is there any document what should be put in the .prj or .sbn file
that should go with the esri shape files? and does any program
really trust or use what is in it?
This link seems to give some information
<a href="http://en.wikipedia.org/wiki/Shapefile#Shapefile_projection_format_.28.prj.29" target="_blank">http://en.wikipedia.org/wiki/Shapefile#Shapefile_projection_format_.28.prj.29</a>
but no too much.
regards: S.L.
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