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  {block name=title}GPSBabel development:Geogrid-Viewer binary overlay file (.ovl) (ggv_bin){/block}
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  <div xmlns="http://www.w3.org/1999/xhtml" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Geogrid-Viewer binary overlay file (.ovl) (ggv_bin)</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="fmt_ggv_ovl.html">Prev</a> </td><th width="60%" align="center">Chapter 3. The Formats</th><td width="20%" align="right"> <a accesskey="n" href="fmt_ggv_log.html">Next</a></td></tr></table><hr /></div><div xmlns="http://www.w3.org/1999/xhtml" class="section"><div class="titlepage"><div><div><h2 class="title" ><a id="fmt_ggv_bin"></a>Geogrid-Viewer binary overlay file (.ovl) (ggv_bin)</h2></div></div></div><p class="fmtcapshdr">
    This format can...
    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p class="fmtcapsitem">
          read tracks
        </p></li></ul></div><p>
   Binary overlay files (.ovl) used by
   <span class="productname">Geogrid</span>™-Viewer.
</p><p>
   Geogrid-Viewer is part of several
   <a class="ulink" href="https://de.wikipedia.org/wiki/Top50" target="_top">Top50</a>
   map products available in Germany and Austria.
</p><p>
   This module supports binary overlay file format version 2.0, 3.0
   and 4.0. Those files can be identified by looking at the first
   bytes:
</p><pre class="programlisting">
hexdump -C example.ovl | head -n 2
00000000  44 4f 4d 47 56 43 52 44  20 4f 76 6c 66 69 6c 65  |DOMGVCRD Ovlfile|
00000010  20 56 33 2e 30 3a 00 00  00 08 00 00 00 1e 00 00  | V3.0:..........|
</pre><p>
   The current file version 5.0 is not supported.
</p></div><div xmlns="http://www.w3.org/1999/xhtml" class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="fmt_ggv_ovl.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="The_Formats.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="fmt_ggv_log.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Geogrid-Viewer ascii overlay file (.ovl) (ggv_ovl) </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Geogrid-Viewer tracklogs (.log) (ggv_log)</td></tr></table></div>
  
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