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<p class="MsoNormal">Hi PROJ list,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m not sure which list to report this since my initial issue was expressed through GDAL, but since the issue is reproducible in PROJ alone, I’ll start here. I’ve encountered a regression upgrading from PROJ 6.2.1 to 7.2.0 when using GDAL’s
<code><span style="font-size:10.0pt">Get</span></code><span class="highlighted"><span style="font-size:10.0pt;font-family:"Courier New"">EPSG</span></span><code><span style="font-size:10.0pt">GeogCS</span></code> with the Vertical Perspective CRS expressed
by ESRI: 54089. Based on an initial investigation, I think the issue is in WKT1:GDAL generation.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Using PROJ 6.2.1, I can do the following:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">projinfo ESRI:54049 -o WKT1:GDAL<o:p></o:p></p>
<p class="MsoNormal">WKT1_GDAL:<o:p></o:p></p>
<p class="MsoNormal">PROJCS["World_Vertical_Perspective",<o:p></o:p></p>
<p class="MsoNormal"> GEOGCS["WGS 84",<o:p></o:p></p>
<p class="MsoNormal"> DATUM["WGS_1984",<o:p></o:p></p>
<p class="MsoNormal"> SPHEROID["WGS 84",6378137,298.257223563,<o:p></o:p></p>
<p class="MsoNormal"> AUTHORITY["EPSG","7030"]],<o:p></o:p></p>
<p class="MsoNormal"> AUTHORITY["EPSG","6326"]],<o:p></o:p></p>
<p class="MsoNormal"> PRIMEM["Greenwich",0],<o:p></o:p></p>
<p class="MsoNormal"> UNIT["Degree",0.0174532925199433]],<o:p></o:p></p>
<p class="MsoNormal"> PROJECTION["Vertical_Near_Side_Perspective"],<o:p></o:p></p>
<p class="MsoNormal"> PARAMETER["False_Easting",0],<o:p></o:p></p>
<p class="MsoNormal"> PARAMETER["False_Northing",0],<o:p></o:p></p>
<p class="MsoNormal"> PARAMETER["Longitude_Of_Center",0],<o:p></o:p></p>
<p class="MsoNormal"> PARAMETER["Latitude_Of_Center",0],<o:p></o:p></p>
<p class="MsoNormal"> PARAMETER["Height",35800000],<o:p></o:p></p>
<p class="MsoNormal"> UNIT["metre",1,<o:p></o:p></p>
<p class="MsoNormal"> AUTHORITY["EPSG","9001"]],<o:p></o:p></p>
<p class="MsoNormal"> AXIS["Easting",EAST],<o:p></o:p></p>
<p class="MsoNormal"> AXIS["Northing",NORTH],<o:p></o:p></p>
<p class="MsoNormal"> AUTHORITY["ESRI","54049"]]<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But in PROJ 7.2.0, I get the following:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">projinfo ESRI:54049 -o WKT1:GDAL<o:p></o:p></p>
<p class="MsoNormal">WKT1:GDAL string:<o:p></o:p></p>
<p class="MsoNormal">Error when exporting to WKT1:GDAL: Unsupported conversion method: Vertical Perspective<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m aware of release notes for GDAL that impacted Vertical Perspective (and I haven’t found any corresponding in PROJ), but I suspect the GDAL issue is rooted in PROJ too.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Jonathan<o:p></o:p></p>
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