<div dir="ltr">Hello Mike,<div>GeoNode relies on the GeoSpatial server in order to manage the projections. Also on the frontend, the client is pluggable.</div><div><br></div><div>So, long story short, this is all customizable. By default, GeoNode provides GeoServer, as geospatial backend, and MapStore2 as gis client, which uses mercator as default projection.</div><div><br></div><div>That said when you upload a new layer, GeoNode checks for a valid projection file. It tried to keep the native projection on the backend whenever is possible.</div><div><br></div><div>In the case it cannot find it, it asks to the user to specify a valid native projection for the data.</div><div><br></div><div>The available choices must be configured on the GeoNode settings. The default ones are the following</div><div><br></div><div><a href="https://docs.geonode.org/en/master/basic/settings/index.html#epsg-code-matches">https://docs.geonode.org/en/master/basic/settings/index.html#epsg-code-matches</a><br></div><div><br></div><div><pre style="box-sizing:border-box;font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",Courier,monospace;font-size:12px;line-height:1.4;margin-top:0px;margin-bottom:0px;padding:12px;overflow:auto;color:rgb(64,64,64)"><span class="gmail-p" style="box-sizing:border-box">{</span>
    <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'EPSG:4326'</span><span class="gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'(4326) WGS 84'</span><span class="gmail-p" style="box-sizing:border-box">,</span>
    <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'EPSG:900913'</span><span class="gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'(900913) Google Maps Global Mercator'</span><span class="gmail-p" style="box-sizing:border-box">,</span>
    <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'EPSG:3857'</span><span class="gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'(3857) WGS 84 / Pseudo-Mercator'</span><span class="gmail-p" style="box-sizing:border-box">,</span>
    <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'EPSG:3785'</span><span class="gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'(3785 DEPRECATED) Popular Visualization CRS / Mercator'</span><span class="gmail-p" style="box-sizing:border-box">,</span>
    <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'EPSG:32647'</span><span class="gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'(32647) WGS 84 / UTM zone 47N'</span><span class="gmail-p" style="box-sizing:border-box">,</span>
    <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'EPSG:32736'</span><span class="gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'(32736) WGS 84 / UTM zone 36S'</span>
<span class="gmail-p" style="box-sizing:border-box">}</span></pre></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno mar 20 ott 2020 alle ore 11:20 Mike Saunt <<a href="mailto:mikesaunt@astuntechnology.com">mikesaunt@astuntechnology.com</a>> ha scritto:<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 class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Hi all!</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">I was wondering whether GeoNode keeps all data in it's source projection (or the user can specify the projection if creating a layer)? </div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">If yes then I presume "All the layers are automatically re-projected to web Mercator for maps display, making it possible to use different popular base layers, like Open Street Map, Google Satellite or Bing layers." from <a href="https://docs.geonode.org/en/master/start/#data-mixing-maps-creation" target="_blank">this GeoNode help page</a> is simply done dynamically with JavaScript in the browser?</div><div><br></div><div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Many thanks</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Mike</div><br></div>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><font color="#990000">-----------------------</font></div><div><font face="verdana, sans-serif" color="#990000">Mike Saunt</font><br></div></div></div></div></div></div></div></div>

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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px"><span><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-size:11pt;white-space:pre-wrap">==</span><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">GeoServer Professional Services from the experts! Visit <a href="http://goo.gl/it488V" target="_blank">http://goo.gl/it488V</a> for more information.</span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">==</span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Ing. Alessio Fabiani</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">@alfa7691</span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Founder/Technical Lead</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">GeoSolutions S.A.S.</span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Via di Montramito 3/A - </span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">55054  Massarosa (LU) - </span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Italy</span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">phone: +39 0584 962313</span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="font-size:11pt;font-family:Arial;color:rgb(34,34,34);background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