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<p class="MsoNormal">Hi folks,<o:p></o:p></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal">We would like to use PostGIS as backend (PostGres with Extension GIS enabled).
<span lang="FR-CH">There we transform with ST_Transform sql-procedure etc.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CH">And on the client side (client-applications) we would like to install/distribute the proj-lib for client-transformations. Here we directly access the proj.dll C-Interfaces for transformations. So basically we then have
two different proj-sytems (one on the client and the other in PostGIS-DB).<o:p></o:p></span></p>
<p class="MsoNormal">But the projections (proj.db SQLLite) should be the same and also the proj.dll versions.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0cm" start="1" type="1">
<li class="MsoListParagraph" style="color:black;margin-left:0cm;mso-list:l0 level1 lfo1">
<span style="mso-fareast-language:DE-CH">When installing the PostGIS extension on the server, is the db-table
<b>spatial_ref_sys</b> directly generated from the file: C:\Program Files\PostgreSQL\13\share\contrib\postgis-3.0\proj\<b>proj.db</b> ? Or is it generated from the CSV-files in C:\Program Files\PostgreSQL\13\<b>gdal-data?</b><o:p></o:p></span></li><li class="MsoListParagraph" style="color:black;margin-left:0cm;mso-list:l0 level1 lfo1">
<span style="mso-fareast-language:DE-CH">Why does the PostGIS extension not install the newest version of proj (Version 7) and Version 6.x instead?<o:p></o:p></span></li><li class="MsoListParagraph" style="color:black;margin-left:0cm;mso-list:l0 level1 lfo1">
<span style="mso-fareast-language:DE-CH">Where is the best way to download the proj.dll and proj.db for the client applications? Should we copy them from the PostGIS-Installation-Directory ?<o:p></o:p></span></li><li class="MsoListParagraph" style="color:black;margin-left:0cm;mso-list:l0 level1 lfo1">
<span style="mso-fareast-language:DE-CH">Is the PostGIS <b>libproj-15.dll </b>the same like
<b>proj.dll</b>?<o:p></o:p></span></li></ol>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE-CH">Thank you for your help and interest!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE-CH">Kind regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE-CH">Michael Morelli<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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