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    <p>Hello,</p>
    <p>I would recommend looking at CesiumJS:
      <a class="moz-txt-link-freetext" href="https://cesium.com/platform/cesiumjs/">https://cesium.com/platform/cesiumjs/</a></p>
    <p>And in particular 3D Tiles Next as data format:
      <a class="moz-txt-link-freetext" href="https://cesium.com/blog/2021/11/10/introducing-3d-tiles-next/">https://cesium.com/blog/2021/11/10/introducing-3d-tiles-next/</a></p>
    <p>Greetings,<br>
      Christian<br>
    </p>
    <div class="moz-cite-prefix">Am 27.01.23 um 05:30 schrieb karsten
      via Discuss:<br>
    </div>
    <blockquote type="cite"
      cite="mid:136FC60EC39B41949B4A0910DD74F5E0@terragispc">
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          <div><span class="543255800-27012023"><span
                class="769482304-27012023"><font color="#000080">Hi All,</font></span></span></div>
          <div><span class="543255800-27012023"><span
                class="769482304-27012023"></span></span> </div>
          <div><font color="#000080"><span class="543255800-27012023"><span
                  class="769482304-27012023">a friend asked me if I knew
                  about open source digital "twin software". While I
                  have heard about the concept unfortunately I have am
                  not aware what exists in this field and in addition is
                  open source.<br>
                </span></span><span class="543255800-27012023">I found <span
                  class="769482304-27012023">this </span>article <span
                  class="769482304-27012023">online </span>summarizing
                some efforts <span class="769482304-27012023">( </span></span><span
                class="543255800-27012023"><a
title="https://www.vortech.nl/en/an-open-source-platform-for-digital-twins/"
href="https://www.vortech.nl/en/an-open-source-platform-for-digital-twins/"
                  moz-do-not-send="true" class="moz-txt-link-freetext">https://www.vortech.nl/en/an-open-source-platform-for-digital-twins/</a> <span
                  class="769482304-27012023">) but I am<span
                    class="769482304-27012023"> </span><span
                    class="543255800-27012023">not sure how new this is.</span></span></span></font></div>
          <div><font color="#000080"><span class="543255800-27012023"><span
                  class="769482304-27012023"><span
                    class="543255800-27012023"></span></span></span></font> </div>
          <div><span class="769482304-27012023"><font color="#000080">Can anyone
                on this list point me to any efforts in regards to this
                ?</font></span></div>
          <div><span class="769482304-27012023"></span> </div>
          <div><span class="769482304-27012023"><font color="#000080">Thanks
                so much</font></span></div>
          <div><span class="769482304-27012023"><font color="#000080">Cheers</font></span></div>
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            <div><span style="FONT-SIZE: 11pt; FONT-FAMILY:
                'Verdana','sans-serif'"><font color="#000080">Karsten</font></span></div>
          </font>
          <div><font size="2" face="Arial"><span style="FONT-SIZE: 11pt;
                FONT-FAMILY: 'Verdana','sans-serif'"></span></font> </div>
        </div>
      </div>
      <div align="left">
        <div><span style="FONT-SIZE: 11pt; FONT-FAMILY:
            'Verdana','sans-serif'">Karsten Vennemann<br>
          </span><span style="FONT-SIZE: 9pt; FONT-FAMILY:
            'Verdana','sans-serif'">Principal<br>
            <br>
            <span style="COLOR: #003264">Terra GIS LTD<br>
              2119 Boyer Ave E <br>
              Seattle, WA  98112<br>
              USA <br>
              <a title="http://www.terragis.net/
                blocked::http://www.terragis.net/"
                href="http://www.terragis.net/" moz-do-not-send="true"><font
                  title="http://www.terragis.net/" color="#0000ff">www.terragis.net</font></a></span></span></div>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
Discuss mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Discuss@lists.osgeo.org">Discuss@lists.osgeo.org</a>
<a class="moz-txt-link-freetext" href="https://lists.osgeo.org/mailman/listinfo/discuss">https://lists.osgeo.org/mailman/listinfo/discuss</a>
</pre>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
Dr. Christian Willmes   
AG GIS & Fernerkundung      | GIS & RS Group
Geographisches Institut     | Institute of Geography
Universität zu Köln         | University of Cologne
Tel.: +49 (0)221 470 6234
<a class="moz-txt-link-freetext" href="https://www.geographie.uni-koeln.de/14126.html">https://www.geographie.uni-koeln.de/14126.html</a>
<a class="moz-txt-link-freetext" href="https://orcid.org/0000-0002-5566-6542">https://orcid.org/0000-0002-5566-6542</a>
<a class="moz-txt-link-freetext" href="https://campusgis2.uni-koeln.de/">https://campusgis2.uni-koeln.de/</a>
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