<html>
  <head>
    <meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <font face="Times New Roman, Times, serif">That's it. I exported 
      PROJ_DEBUG=5, and restarted the server. In the log I see a proj
      error message: "pj_open_lib  <path>/test.ntv2 failed",
      followed by the PostGIS error message. The location for ntv2-files
      seems to be:<br>
      <br>
      <postgresql install dir>/share/contrib/postgis-2.1/proj<br>
      <br>
      So I copied the ntv2 file there, restarted the server again, and
      the whole thing works.<br>
      <br>
      Is this a bug? Even when I give an absolute path for the
      ntv2-file, it gets appended to the above location. And I would
      prefer the ntv2 files to be read from the standard proj
      installation directory. It's given with configure, so that
      shouldn't be a problem. Or should the postgresql server only have
      access to its own install dir? In that case, this should be
      documented.<br>
      <br>
      Anyway, thanks Howard, for the fast reply.<br>
      <br>
      Jan<br>
      <br>
      <br>
      <br>
      <br>
    </font>
    <div class="moz-cite-prefix">On 01/17/2013 03:19 PM, Howard Butler
      wrote:<br>
    </div>
    <blockquote
      cite="mid:8CDAD2F5-914B-4F88-9C20-C656F67668D9@gmail.com"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html;
        charset=ISO-8859-1">
      <div>Setting PROJ_DEBUG=ON in the shell environment before
        starting postgres might be instructive. <br>
        <br>
        On Jan 17, 2013, at 8:11 AM, Jan Hartmann <<a
          moz-do-not-send="true" href="mailto:j.l.h.hartmann@uva.nl">j.l.h.hartmann@uva.nl</a>>
        wrote:<br>
        <br>
      </div>
      <blockquote type="cite">
        <div> <font face="Times New Roman, Times, serif">Or perhaps the
            place in the source code that generates the error message:</font><br>
          <font face="Times New Roman, Times, serif"><br>
          </font>
          <div class="moz-forward-container"><font face="Times New
              Roman, Times, serif">ERROR:  transform: couldn't project
              point (155000 463000 0): failed to load datum shift file
              (-38)<br>
            </font><br>
            <font face="Times New Roman, Times, serif">I did several
              greps on the postgis-2.1.0SVN tree, without any result</font><br>
            <br>
            -------- Original Message --------
            <table class="moz-email-headers-table" border="0"
              cellpadding="0" cellspacing="0">
              <tbody>
                <tr>
                  <th nowrap="nowrap" valign="BASELINE" align="RIGHT">Subject:

                  </th>
                  <td>[postgis-users] Location of nadgrid file</td>
                </tr>
                <tr>
                  <th nowrap="nowrap" valign="BASELINE" align="RIGHT">Date:
                  </th>
                  <td>Thu, 17 Jan 2013 14:46:08 +0100</td>
                </tr>
                <tr>
                  <th nowrap="nowrap" valign="BASELINE" align="RIGHT">From:
                  </th>
                  <td>Jan Hartmann <a moz-do-not-send="true"
                      class="moz-txt-link-rfc2396E"
                      href="mailto:j.l.h.hartmann@uva.nl"><j.l.h.hartmann@uva.nl></a></td>
                </tr>
                <tr>
                  <th nowrap="nowrap" valign="BASELINE" align="RIGHT">Reply-To:

                  </th>
                  <td>PostGIS Users Discussion <a
                      moz-do-not-send="true"
                      class="moz-txt-link-rfc2396E"
                      href="mailto:postgis-users@lists.osgeo.org"><postgis-users@lists.osgeo.org></a></td>
                </tr>
                <tr>
                  <th nowrap="nowrap" valign="BASELINE" align="RIGHT">To:
                  </th>
                  <td><a moz-do-not-send="true"
                      class="moz-txt-link-rfc2396E"
                      href="mailto:postgis-users@lists.osgeo.org"><postgis-users@lists.osgeo.org></a></td>
                </tr>
              </tbody>
            </table>
            <br>
            <br>
            <font face="Times New Roman, Times, serif">Can anyone tell
              me where the nadgrids-file, as used by proj4 to apply grid
              shifts to a projection, should be installed for postgis? I
              produced one, put it in the standard proj installation
              directory (/usr/share/proj), and it works from the
              commandline with cs2cs. However, when I put an entry in
              the postgis spatial_ref_sys table for a new projection
              with this nadgrids file, the st_transform command says:
              "failed to load datum shift file (-38). It also happens
              when I put in the whole path. What should I do?<br>
              <br>
              Jan </font><br>
            <br>
          </div>
          <br>
        </div>
      </blockquote>
      <blockquote type="cite">
        <div><Attached Message Part></div>
      </blockquote>
      <blockquote type="cite">
        <div><span>_______________________________________________</span><br>
          <span>postgis-users mailing list</span><br>
          <span><a moz-do-not-send="true"
              href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a></span><br>
          <span><a moz-do-not-send="true"
              href="http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users">http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users</a></span><br>
        </div>
      </blockquote>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
postgis-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a>
<a class="moz-txt-link-freetext" href="http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users">http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users</a>
</pre>
    </blockquote>
    <br>
  </body>
</html>