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<div>Dear Philippe,</div>
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<div>you might try just to copy your PRJ file from an ESRI ArcGIS installation (under \Program Files\ArcGIS\Coordinate Systems). However, I have seen problems in ArcObjects when programatically calling a Projection ID that was not hard-coded with ESRI SW or with work-around with adding keywords into env. settings.</div>
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<div>However, many PRJ files are identical or similar between different DB of spatial references.</div>
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<div>Good luck!</div>
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<div>Dejan<br><br></div></font>
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<div class="gmail_quote">On Fri, Aug 8, 2008 at 10:06 AM, Philippe Kruschitz <span dir="ltr"><<a href="mailto:kruschitz@grid-it.at" target="_blank">kruschitz@grid-it.at</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>Hi Dejan,<br><br>Thanks for the explanation. I wasn't aware that the ESRI projections definitions were modified that often. As I'm working with only a couple of projections in this project, I'll write the PRJ files manually (and hope they don't change those definitions in a near future...)<br>
<br>Regards,<br><font color="#888888"><br>Philippe</font>
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<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">However, I do see that a whole database of PRJ files has to be incorporated and matched with a projection database in FW Tools/GDAL, since the keywords for different PCS, GCS, DATUMS, SPHEREOIDS and other parameters have to keep the same/identical (they are then stored e.g. into SDE repository directly after importing a SHP into a GDB, so you might have different SRID entries for the same Spatial references as you might have different PRJ files pointing to the same spatial references, with the same/similar parameters).<br>
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<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">However, ESRI is updating its projection database quite often (even through the SP releases), so reconciling both database could be a huge task. Not being in sync with the ESRI DB can cause users using GDAL managed data at ESRI side some problems, especially when calling SRIDs or having multiple environments, different ESRI SW versions and updates installed.<br>
However, I would love to see that output files from GDAL have appropriate PRJ files with it, if this is feasible :-)<br> Best regards,<br>Dejan<br></blockquote></div></div></blockquote></div><br></div></div></div></blockquote>
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