<div dir="ltr"><div>Thanks Thomas</div><div><br></div><div>Does it mean that the W-N systems are still used? Or is it a relic from the past? I found EPSG:3053 because a colleague was looking for something with "abnormal" axis order (more than N-E (many), W-S (South Africa) and S-W (Czechia))</div><div>In Czechia they also have a "normalized" version that is E-N, to avoid problems in software.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, 27 Feb 2026 at 14:12, Thomas Knudsen <<a href="mailto:knudsen.thomas@gmail.com">knudsen.thomas@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">The west oriented LCC has been used in Denmark, Iceland and perhaps also Greenland,<div>cf <a href="https://krigsvidenskab.dk/application/files/1816/1530/1487/Skaermbillede_2021-03-09_kl._15.50.52.png" target="_blank">https://krigsvidenskab.dk/application/files/1816/1530/1487/Skaermbillede_2021-03-09_kl._15.50.52.png</a></div><div><br></div><div>For the Danish cases, recent compatibility reimplementations, EPSG:10258 and EPSG:10262,</div><div>formalizes existing practice, switching to east oriented by multiplying the westing coordinate by -1</div><div><br></div><div>/Thomas</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Den tors. 26. feb. 2026 kl. 11.29 skrev Javier Jimenez Shaw via PROJ <<a href="mailto:proj@lists.osgeo.org" target="_blank">proj@lists.osgeo.org</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi</div><div><br></div><div>Today I met "by accident" EPSG:3053 <a href="https://spatialreference.org/ref/epsg/3053/" target="_blank">https://spatialreference.org/ref/epsg/3053/</a></div><div>looking for a westing-northing system.</div><div><br></div><div>I realized that the projection "Lambert Conic Conformal (West Orientated)" is not implemented (all fine, I don't want it to be implemented).</div><div><br></div><div>What I want to know is which CRSs from the catalog do not have an implemented projection, to avoid using them.</div><div>We are using "proj_get_crs_info_list_from_database" to get the list of all the systems (13722). It includes the field "projection_method_name" (a string).</div><div>Is there any function in C or C++ API to know if such a method is implemented? Doing a quick search in spatialreference I see there are 53 methods in total nowadays.</div><div>I don't want to hardcode that list in my code, in case anything changes in the future.</div><div><br></div><div>Thank you.</div><div><br></div><div>Cheers</div><div>Javier.</div></div>
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