<html><head></head><body><div class="yahoo-style-wrap" style="font-family:verdana, helvetica, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">Hi,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I have been using a custom Albers Equal Area for gridding data for some years - setting it up in Postgis, R & QGIS.</div><div dir="ltr" data-setdir="false"> <br></div><div dir="ltr" data-setdir="false"><span><div style="margin: 0px;">+proj=aea +lat_1=-30 +lat_2=-50 +lat_0=-40 +lon_0=175 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs<br></div><div style="margin: 0px;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0px;" dir="ltr" data-setdir="false">It is still working fine in my old QGIS 2.18, and in Postgis v2.4.</div><div style="margin: 0px;" dir="ltr" data-setdir="false">eg (with this projection added to spatial_ref_sys as #27201):</div><div style="margin: 0px;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0px;" dir="ltr" data-setdir="false"><font color="#4c76a2">select ST_ASText(ST_Transform(ST_SetSRID(ST_MakePoint(175,-40),4326),27201));</font></div><div style="margin: 0px;" dir="ltr" data-setdir="false">(returns)</div><div style="margin: 0px;" dir="ltr" data-setdir="false"><font color="#4c76a2">POINT(0 0)</font></div><div style="margin: 0px;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0px;" dir="ltr" data-setdir="false">I have installed QGIS 3.10 and it rejects this definition - "This proj projection definition is not valid" and just says ERROR when testing it with 175/-40 (which should give the 0,0 coords that both QGIS v2.18 & Postgis v2.4 return)<br></div><div style="margin: 0px;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0px;" dir="ltr" data-setdir="false">This was ratified as EPSG::9191 last year - and I can't see why it fails.</div><div style="margin: 0px;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0px;" dir="ltr" data-setdir="false">Any advice appreciated!!</div><div style="margin: 0px;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0px;" dir="ltr" data-setdir="false">Thanks,</div><div style="margin: 0px;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0px;" dir="ltr" data-setdir="false"> Brent Wood</div></span></div></div></body></html>