<div dir="ltr"><div>Btw, <br></div>the official announce :<br><br><a href="http://blog.cibg.irisnet.be/brussels-urbis-enfin-disponible-sous-licence-open-data/">http://blog.cibg.irisnet.be/brussels-urbis-enfin-disponible-sous-licence-open-data/</a><br>

<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Apr 27, 2013 at 4:01 PM, A.Pirard.Papou <span dir="ltr"><<a href="mailto:A.Pirard.Papou@gmail.com" target="_blank">A.Pirard.Papou@gmail.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>

  
    
    
  
  <div text="#000000" bgcolor="#ffffff">
    On 2013-04-27 09:58,  Wim Crols wrote :
    <div class="im"><blockquote type="cite">
      <div dir="ltr">On Sat, Apr 27, 2013 at 12:02 AM, A.Pirard.Papou <span dir="ltr"><<a href="mailto:A.Pirard.Papou@gmail.com" target="_blank">A.Pirard.Papou@gmail.com</a>></span>
        wrote:<br>
        <div class="gmail_extra">
          <div class="gmail_quote">
            <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
              <div text="#000000" bgcolor="#ffffff"> On 2013-04-26
                11:20,  Chris Browet wrote :<br>
                <blockquote type="cite">
                  <div dir="ltr">
                    <div>The Lambert72 PROJ4 string extracted from the
                      prj is:<br>
                      <br>
                    </div>
                    <div>+proj=lcc +lat_1=49.8333339
                      +lat_2=51.16666723333333 +lat_0=90
                      +lon_0=4.367486666666666 +x_0=150000.01256
                      +y_0=5400088.4378 +ellps=intl +units=m +no_defs <br>
                      <br>
                    </div>
                    <div>And doesn't quite work.<br>
                      <br>
                    </div>
                    <div>This one is ok:<br>
                      <br>
                      +proj=lcc +lat_1=51.16666723333334
                      +lat_2=49.83333389999999 +lat_0=90
                      +lon_0=4.367486666666666 +x_0=150000.013
                      +y_0=5400088.438 +ellps=intl
                      +towgs84=-99.1,53.3,-112.5,0.419,-0.83,1.885,-1.0
                      +units=m +no_defs<br>
                    </div>
                  </div>
                </blockquote>
              </div>
            </blockquote>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
              <div text="#000000" bgcolor="#ffffff">There are 4 or 5
                proj4 definitions of Lambert 72 around and bugs reports.<br>
                This is the correct one, I think, that I configured
                Merkaartor with after much searching.<br>
                <br>
              </div>
            </blockquote>
            <div><br>
            </div>
            <div>Actually this is the one defined in proj4 now</div>
            <div> </div>
            <div><font face="arial, sans-serif">+proj=lcc
                +lat_1=51.16666723333333 +lat_2=49.8333339 +lat_0=90
                +lon_0=4.367486666666666 +x_0=150000.013
                +y_0=5400088.438 +ellps=intl
                +towgs84=106.869,-52.2978,103.724,-0.33657,0.456955,-1.84218,1
                +units=m +no_defs</font><br>
            </div>
            <div><font face="arial, sans-serif"><br>
              </font></div>
            <div><a href="https://svn.osgeo.org/metacrs/sr.org/epsg/proj/epsg" target="_blank">https://svn.osgeo.org/metacrs/sr.org/epsg/proj/epsg</a><br>
            </div>
            <div><br>
            </div>
            <div>look for 31370</div>
          </div>
        </div>
      </div>
    </blockquote></div>
    Indeed, and that is why everybody should carefully check that <a href="http://trac.osgeo.org/proj/ticket/47" target="_blank">this #47 bug is
      corrected in their proj.4 distribution</a> (library file
    libproj0.so.0 or such) or in other sources or in any other "manual"
    configuration in order to avoid producing bad work <a href="http://lists.maptools.org/pipermail/proj/2010-January/005017.html" target="_blank">and
      confusion like this message + replies and other discussions</a>.<div class="im"><br>
    <blockquote type="cite">
      <div dir="ltr">
        <div class="gmail_extra">
          <div class="gmail_quote">
            <div> </div>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
              <div text="#000000" bgcolor="#ffffff"> Obviously, IGN/NGI
                should specify their projections' proj4 definitions on
                their site.<br>
                Someone should notify them.<br>
              </div>
            </blockquote>
          </div>
        </div>
      </div>
    </blockquote></div>
    Obviously.<br>
    <br>
    <div dir="ltr">
      <div class="gmail_extra">
        <div class="gmail_quote">
          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
            <div text="#000000" bgcolor="#ffffff"> <br>
              Cheers<br>
              <br>
              <table>
                <tbody>
                  <tr>
                    <td valign="top">André.</td>
                  </tr>
                </tbody>
              </table>
              <br>
            </div>
          </blockquote>
        </div>
      </div>
    </div>
    <br>
  </div>

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<br></blockquote></div><br></div>