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<DIV dir=ltr><FONT face="Times New Roman" color=#000000 size=2>The difference between the WGS84 ellipsoid and the GRS80 ellipsoid is less than 0.001 meters, and that is only for the semi-minor axis (b). Consider them identical for all practical purposes.</FONT></DIV>
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<DIV class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN lang=DE style="FONT-SIZE: 10pt; mso-ansi-language: DE">Clifford J. Mugnier, C.P., C.M.S.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></DIV>
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<FONT face=Tahoma size=2><B>From:</B> proj-bounces@lists.maptools.org on behalf of SAEZ Laurent - SG/SPSSI/CPII/DOM/ETER<BR><B>Sent:</B> Thu 07-Oct-10 11:29<BR><B>To:</B> proj@lists.maptools.org<BR><B>Subject:</B> [Proj] EPSG CS not supported,but the epsg file contains the correct definition<BR></FONT><BR></DIV>
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<P><FONT size=2>Hi all,<BR><BR>I have to add support for new CRS in my mapfiles.<BR><BR>New EPSG code, 4559 (Projected CRS for French Antilles - Guadeloupe and<BR>Martinique) replaces 2989.<BR>The ellipsoide is the only thing different (GRS80 instead of WGS84).<BR><BR>So I add the EPSG:4559 definition in my epsg file.<BR><4559> +proj=utm +zone=20 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m<BR>+no_defs <><BR><BR>I use MapServer 5.6.5 with proj 4.7.0 (on Debian 64bits).<BR><BR>When I call a GetMap using EPSG:4559 the image rendered is "wrong".<BR>EPSG:4559 and EPSG:2989 are almost identical and the images should be<BR>approximately similar.<BR>So, I test my EPSG code with testepsg.<BR><BR>If I don't specify the epsg file location ('/opt/mapserver/bin/testepsg'<BR>EPSG:4559), I have :<BR>"ERROR 6: EPSG PCS/GCS code 4559 not found in EPSG support files. Is<BR>this a valid<BR>EPSG coordinate system?<BR>ERROR 1: Error occured translating EPSG:4559."<BR><BR>If I specify the file location ('/opt/mapserver/bin/testepsg'<BR>'/opt/mapserver/share/proj/epsg' EPSG:4559) :<BR>"Validate Succeeds.<BR>WKT[/opt/mapserver/share/proj/epsg] =<BR>PROJCS["unnamed",<BR> GEOGCS["GRS 1980(IUGG, 1980)",<BR> DATUM["unknown",<BR> SPHEROID["GRS80",6378137,298.257222101],<BR> TOWGS84[0,0,0,0,0,0,0]],<BR> PRIMEM["paris",2.3372291666985],<BR>...<BR>...<BR>...<BR>UNIT["Meter",1],<BR> PARAMETER["standard_parallel_1",46.8]]<BR>PROJ.4 rendering of [/opt/mapserver/share/proj/epsg] = +proj=lcc<BR>+lat_1=46.8 +lat_0=46.8 +lon_0=2.33722917 +k_0=0.99987742 +x_0=600000<BR>+y_0=2200000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +pm=2.3372291666985<BR>+units=m +no_defs<BR><BR>ERROR 6: EPSG PCS/GCS code 4559 not found in EPSG support files. Is<BR>this a valid<BR>EPSG coordinate system?<BR>ERROR 1: Error occured translating EPSG:4559."<BR><BR>I use to add EPSG codes in my mapfiles. It's the first time I have this<BR>problem.<BR><BR>It seems that sometimes it is not sufficient to add a definition in the<BR>file EPSG...<BR>I have read this thread ("Unsupported SRS but available in epsg file") :<BR><A href="http://www.mail-archive.com/gdal-dev@lists.osgeo.org/msg04926.html">http://www.mail-archive.com/gdal-dev@lists.osgeo.org/msg04926.html</A><BR><BR>My GDAL_DATA environnement variable is well defined. I tried to add the<BR>definition in cubewerx_extra.wkt without success.<BR>Any idea ?<BR><BR>I send this message on this list but I can't know what application is at<BR>issue: GDAL or PROJ?<BR><BR>NB: I apologize for my bad English.<BR><BR><BR><BR><BR>_______________________________________________<BR>Proj mailing list<BR>Proj@lists.maptools.org<BR><A href="http://lists.maptools.org/mailman/listinfo/proj">http://lists.maptools.org/mailman/listinfo/proj</A><BR></FONT></P></DIV></BODY></HTML>