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    <br>
    Works perfectly as suggested by Xavier also.<br>
    Attached is what I was trying to achieve, now I just need to
    integrate it into this KMZ (<a
      href="http://www.projectbaseline.org/estremenho-karst-massif">http://www.projectbaseline.org/estremenho-karst-massif</a>).<br>
    Thanks guys !<br>
    <br>
    <br>
    <div class="moz-cite-prefix">Em 14-08-2012 16:44, Torstein Finnesand
      escreveu:<br>
    </div>
    <blockquote cite="mid:502A7243.60503@gmail.com" type="cite">
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      I thought it was possible to create a centerline only KML file by
      using "model" (not "map"), like this:<br>
      <br>
      export model -format kml -output ALV_kml.kml<br>
      <br>
      Torstein<br>
      <br>
      <br>
      On 14.08.2012 17:28, Ricardo Constantino wrote:
      <blockquote cite="mid:502A6E9E.9040808@entrada.tv" type="cite">
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        <br>
        Thanks for the feedback.<br>
        <br>
        That was the general idea - map out over Google the centerlines
        of a couple of caves to see "the big picture".<br>
        Is it worth trying to draw a single line scrap over the
        centerline to see how it reacts ?<br>
        <br>
        I've also tried to generate KML output with my complete data set
        (with scraps) - it warns that the data is not georeferenced and
        generates an empty KML.<br>
        I have at least one station fixed (as in the example I attached
        previously), and don't understand what I am missing to get over
        this hurdle.<br>
        <br>
        Best,<br>
        Ricardo<br>
        <br>
        <br>
        <div class="moz-cite-prefix">Em 14-08-2012 15:58, Footleg
          escreveu:<br>
        </div>
        <blockquote
cite="mid:CAJkGg4mJg=H_wMeauZdNvO0n9xM-G-q_SQEKKyZ3rhXjq_Ld=Q@mail.gmail.com"
          type="cite">It looks like you have not drawn and included any
          scraps yet. These are needed to define the walls which in turn
          drive the KML file generation. I don't know if there is any
          way to create a centreline only KML file. I've wondered this
          before, as it would be quite useful to see the centrelines for
          an entire cave in GoogleEarth before drawing all (or even
          before I've drawn any) scraps.
          <div> <br>
          </div>
          <div>Footleg<br>
            <br>
            <div class="gmail_quote">On 14 August 2012 15:01, Ricardo
              Constantino <span dir="ltr"><<a moz-do-not-send="true"
                  href="mailto:ricardo@entrada.tv" target="_blank">ricardo@entrada.tv</a>></span>
              wrote:<br>
              <blockquote class="gmail_quote" style="margin:0 0 0
                .8ex;border-left:1px #ccc solid;padding-left:1ex">
                <div bgcolor="#FFFFFF" text="#000000"> Hello,<br>
                  <br>
                  I need someone's help to generate a KML file ...<br>
                  Attached is an extract of the cave survey data /
                  config file that I've been using - but the result is
                  always an "emplty" KML file.<br>
                  What am I doing wrong ?<br>
                  <br>
                  Thanks in advance,<br>
                  Ricardo<br>
                  <br>
                  <br>
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