<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div>That looks very interesting, thank you for your reply.</div><div id="yui_3_16_0_ym19_1_1467274664769_2766"><br></div><div id="yui_3_16_0_ym19_1_1467274664769_2767">One more question:</div><div id="yui_3_16_0_ym19_1_1467274664769_2762"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1467274664769_2773">6371000 - this is an Earth radius</div><div id="yui_3_16_0_ym19_1_1467274664769_2803" dir="ltr">0.0093202511 - how did you got this value? I just want to understand :)</div><div id="yui_3_16_0_ym19_1_1467274664769_2862" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1467274664769_2864" dir="ltr">Best Regards,</div><div id="yui_3_16_0_ym19_1_1467274664769_2863" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1467274664769_2865" dir="ltr">Damian<br></div><div id="yui_3_16_0_ym19_1_1467274664769_2596"><span></span></div> <div class="qtdSeparateBR"><br><br></div><div style="display: block;" class="yahoo_quoted"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font face="Arial" size="2"> 19:18 środa, 2016-6-29, Andre Joost <andre+joost@nurfuerspam.de> napisał(a):<br></font></div> <br><br> <div class="y_msg_container">Am 28.06.2016 um 19:40 schrieb Hermann Peifer:<br clear="none"><br clear="none">><br clear="none">> With the given sample coordinates, this will give:<br clear="none">><br clear="none">> $ echo 2.2945 48.858222 | cs2cs -v +proj=longlat +datum=WGS84 +no_defs<br clear="none">> +to +proj=eqc +lat_ts=0 +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84<br clear="none">> +units=m +no_defs<br clear="none">> # ---- From Coordinate System ----<br clear="none">> #Lat/long (Geodetic alias)<br clear="none">> #<br clear="none">> # +proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0<br clear="none">> # ---- To Coordinate System ----<br clear="none">> #Equidistant Cylindrical (Plate Caree)<br clear="none">> # Cyl, Sph<br clear="none">> # lat_ts=[, lat_0=0]<br clear="none">> # +proj=eqc +lat_ts=0 +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m<br clear="none">> # +no_defs +ellps=WGS84 +towgs84=0,0,0<br clear="none">> 255422.57 5438872.39 0.00<br clear="none">><br clear="none">> The expected result was: 27374451 582901293<br clear="none">><br clear="none"><br clear="none">I suggest to take a sphere, and scale with the units:<br clear="none"><br clear="none">+proj=eqc +lat_ts=0 +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +R=6371000 <br clear="none">+to_meter=0.0093202511 +no_defs<br clear="none"><br clear="none">which results to 27374451.23 582901292.36 0.00<br clear="none"><br clear="none">HTH,<br clear="none">André Joost<div class="yqt0831208296" id="yqtfd15353"><br clear="none"><br clear="none"><br clear="none">_______________________________________________<br clear="none">Proj mailing list<br clear="none"><a shape="rect" ymailto="mailto:Proj@lists.maptools.org" href="mailto:Proj@lists.maptools.org">Proj@lists.maptools.org</a><br clear="none"><a shape="rect" href="http://lists.maptools.org/mailman/listinfo/proj" target="_blank">http://lists.maptools.org/mailman/listinfo/proj</a></div><br><br></div> </div> </div> </div></div></body></html>