<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><font class="Apple-style-span" face="arial" size="2">Hi Hugues,</font><div><font class="Apple-style-span" face="arial" size="2"><br></font></div><div><font class="Apple-style-span" face="arial" size="2">I was looking through the code you mention, and I started to wonder why it's so complicated. Would it not be possible to loop through the the coordinate systems using CS_csrd and look at the value of the epsgNbr field in the cs_Csdef_ struct?</font></div><div><font class="Apple-style-span" face="arial" size="2"><br></font></div><div><font class="Apple-style-span" face="arial" size="2">Or is the epsgNbr field no longer utilized? (I see it's defined in only about half of the systems).</font></div><div><font class="Apple-style-span" face="arial" size="2"><br></font></div><div><font class="Apple-style-span" face="arial" size="2">Steve<br></font><div><br><font
class="Apple-style-span" face="arial" size="2">--- On </font><b style="font-family: arial; font-size: 10pt; ">Wed, 26/1/11, Hugues Wisniewski <i><hugues.wisniewski@autodesk.com></i></b><font class="Apple-style-span" face="arial" size="2"> wrote:</font><br><blockquote style="border-left-width: 2px; border-left-style: solid; border-left-color: rgb(16, 16, 255); margin-left: 5px; padding-left: 5px; font-family: arial; font-size: 10pt; "><br>From: Hugues Wisniewski <hugues.wisniewski@autodesk.com><br>Subject: [MetaCRS] RE: EPSG Code to Coordinate System<br>To: "Chris Gibson" <Chris.Gibson@divestco.com>, "metacrs@lists.osgeo.org" <metacrs@lists.osgeo.org><br>Date: Wednesday, 26 January, 2011, 0:22<br><br><div id="yiv1908262380"><style><!--
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--></style><div class="yiv1908262380WordSection1"><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">Hello Chris,</span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">For this kind of activity an example is always welcome ;-) and here’s how it’s done in the MapGuide API for future reference </span></p><pre><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">The method is CCoordinateSystemFormatConverter::CodeToCode in the file:</span></pre><pre> </pre><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"><a rel="nofollow" target="_blank"
href="http://svn.osgeo.org/mapguide/trunk/MgDev/Common/CoordinateSystem/CoordSysFormatConverter.cpp">http://svn.osgeo.org/mapguide/trunk/MgDev/Common/CoordinateSystem/CoordSysFormatConverter.cpp</a></span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">The Cs-Map API being used is CSepsg2adskCS. </span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">And if EPSG is the target CSadsk2epsgCS is the one.</span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">CS_epsg2msi sounds like a dead prototype that would have to be removed from Cs-Map</span></p><p class="yiv1908262380MsoNormal"><span
style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">Feel free to create a ticket for that and it will be taken care of</span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">Thanks</span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">Hugues</span></p><p class="yiv1908262380MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;"><p class="yiv1908262380MsoNormal"><b><span
style="font-size:10.0pt;font-family:"sans-serif";">From:</span></b><span style="font-size:10.0pt;font-family:"sans-serif";"> metacrs-bounces@lists.osgeo.org [mailto:metacrs-bounces@lists.osgeo.org] <b>On Behalf Of </b>Chris Gibson<br><b>Sent:</b> Tuesday, January 25, 2011 3:33 PM<br><b>To:</b> metacrs@lists.osgeo.org<br><b>Subject:</b> [MetaCRS] EPSG Code to Coordinate System</span></p></div></div><p class="yiv1908262380MsoNormal"> </p><p class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";">I have a need to convert an EPSG code to the Coordinate System descriptor. I thought the function CS_epsg2msi would do what I want, this is in the header file, but no function exists in the source code, so I get an unresolved external.</span></p><p class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";"> </span></p><p
class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";">Am I missing something?</span></p><p class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";"> </span></p><p class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";">What should I be using?</span></p><p class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";"> </span></p><p class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";">Thanks</span></p><p class="yiv1908262380MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"sans-serif";">Chris Gibson</span></p><p class="yiv1908262380MsoNormal"><span lang="EN-CA"> </span></p></div></div></blockquote></div></div></td></tr></table>