<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi All,<div class=""><br class=""></div><div class="">I'm creating a STAC catalog for <a href="https://open.canada.ca/data/en/dataset/d799c202-603d-4e5c-b1eb-d058803f80f9" class="">Canada's SPOT4/5 orthoimagery</a> and I’d like to build a proj json file and include it in the STAC items. </div><div class="">The proj json schema files seem to indicate that I need an `id` object with `authority` and `code` to be compliant. Since the projection (Canada Lambert Conformal Conic [CSRS]), doesn’t have an EPSG code, I used this:</div><div class=""><div style="color: rgb(212, 212, 212); background-color: rgb(30, 30, 30); font-family: Menlo, Monaco, "Courier New", monospace; line-height: 18px; white-space: pre;" class=""><div class=""> <span style="color: #9cdcfe;" class="">"id"</span>: {</div><div class=""> <span style="color: #9cdcfe;" class="">"authority"</span>: <span style="color: #ce9178;" class="">"CANLAMB-CSRS"</span>,</div><div class=""> <span style="color: #9cdcfe;" class="">"code"</span>: <span style="color: #b5cea8;" class="">1</span></div><div class=""> }</div></div></div><div class=""><br class=""></div><div class=""><b class="">Is this acceptable in proj world? It’s been a while since I’ve had to touch projection files.</b></div><div class=""><br class=""></div><div class="">As a reference, this is the <a href="http://ftp.geogratis.gc.ca/pub/nrcan_rncan/image/spot/geobase_orthoimages/doc/GeoBase_spot_en_Orthoimage_Specifications.pdf" class="">documentation for the CANLAMB projection</a> (pg 9 of the document, 15 of the pdf) and I’ve attached my take at the proj json file.</div><div class=""><br class=""></div><div class="">Thanks,</div><div class="">--</div><div class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div>James Banting</div><div>Sparkgeo</div><div><br class=""></div></div></div></div><br class="Apple-interchange-newline">
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