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    <p>Looking good, Don.  Thanks for your tireless efforts!</p>
    <p>Don't forget that X3DUOM has other potential downstream effects,
      on JSON schemas, field types for serializers, method names for
      serializers, etc. etc.</p>
    <p>I find it marvelous amazing all this "Just works," and can
      provide validation for products for people to rely on.</p>
    <p>As I realize that we don't have a perfect solution yet
      (ECMAScript is unvalidated), I know we strive for purely
      declarative solutions like PBR and PBR Next.</p>
    <p>As I revamp my personal portfolio, I have been copying and
      revising my structures.  In particular, I am incorporating
      SaxonJS2 into some of my web pages, to provide conversion from XML
      to JSON using X3dToJson.xslt, so that's a big credit to you and
      your work.</p>
    <p>John<br>
    </p>
    <div class="moz-cite-prefix">On 9/19/21 11:22 PM, Brutzman, Donald
      (Don) (CIV) wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:BY3PR13MB488494448E4BC1E1568BE702C4A09@BY3PR13MB4884.namprd13.prod.outlook.com">
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        <p class="MsoNormal">John, am happy to explain this detailed but
          step-by-step process.</p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">The XML Schema captures the relationships
          exactly.  However XML Schema does not have sufficient power to
          valididate inputOnly or outputOnly fields, because transient
          values cannot appear in an XML document (i.e. an .x3d scene).</p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Therefore, each and every one of those
          inputOnly/ outputOnly fields are added in place as annotations
          (sort of like structured comments).  Similarly, parent-child
          node-type relationships are also listed as node types.  The
          X3DUOM is created to provide a comprehensive list of
          everything.  This autogeneration approach is repeated for each
          X3D Schema and X3DUOM pair.  Validation is pretty rigorous
          (meaning everything fails horribly if not exactly right). 
          Using X3DUOM to then autogenerate Java, Python and Turtle
          leads to multiple forms of round-trip testing.</p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">These construction details are all
          explained on the X3DUOM page.</p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <ul style="margin-top:0in" type="disc">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3"><a
              href="https://www.web3d.org/specifications/X3DUOM.html"
              moz-do-not-send="true"><span
                style="color:windowtext;text-decoration:none">X3D
                Unified Object Model (X3DUOM) (web3d.org)</span></a></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3">The X3D
            Unified Object Model (X3DUOM) is a full set of
            object-oriented interfaces for all nodes, fields and
            statements in the X3D Architecture Specification.</li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3"><a
              href="https://www.web3d.org/specifications/X3DUOM.html"
              moz-do-not-send="true">https://www.web3d.org/specifications/X3DUOM.html</a>
          </li>
        </ul>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">You will find X3DUOM versions 3.0, 3.1,
          3.2, 3.3, and 4.0 all present there.  Each was independently
          constructed from the corresponding X3D XML schema.</p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">X3DUOM construction diagram:</p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <ul style="margin-top:0in" type="disc">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3"><a
href="https://www.web3d.org/specifications/X3DUOM/X3dUnifiedObjectModelCreation.png"
              moz-do-not-send="true"><span
                style="color:windowtext;text-decoration:none">X3dUnifiedObjectModelCreation.png
                (2448×1829) (web3d.org)</span></a></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3"><a
href="https://www.web3d.org/specifications/X3DUOM/X3dUnifiedObjectModelCreation.png"
              moz-do-not-send="true">https://www.web3d.org/specifications/X3DUOM/X3dUnifiedObjectModelCreation.png</a>
          </li>
        </ul>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Since we have placed such a high value on
          backwards compatibility, it seems much more practical to let
          our X3DJSAIL Java and X3DPSAIL Python implementations simply
          support X3D 4.0 plus every prior version.  Having five
          versions of each software library is easily created but
          totally impractical to maintain.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">If you really want to perform
          archaeological sleuthing of the trail behind
          SceneGraphStructureStatement, then diff the schema to prior
          versions and see how it evolved.  We have gradually refactored
          and improved the X3D XML Schema over the years when possible. 
          All changes are summarized in the build log.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <ul style="margin-top:0in" type="disc">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3">X3D
            Specifications: Schema and DOCTYPE Validation assets are
            commonly used for XML validation of X3D scenes, and in-depth
            documentation is also provided here.<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3"><a
              href="https://www.web3d.org/specifications"
              moz-do-not-send="true">https://www.web3d.org/specifications</a>
            <o:p></o:p></li>
        </ul>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Changelogs are listed right up top:<o:p></o:p></p>
        <ul style="margin-top:0in" type="disc">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3"><a
              href="https://www.web3d.org/specifications/x3d-schema-changelog.txt"
              moz-do-not-send="true">https://www.web3d.org/specifications/x3d-schema-changelog.txt</a><o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l1 level1 lfo3"><a
              href="https://www.web3d.org/specifications/x3d-dtd-changelog.txt"
              moz-do-not-send="true">https://www.web3d.org/specifications/x3d-dtd-changelog.txt</a>
            <o:p></o:p></li>
        </ul>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">A magnificent (i.e. endless) list of each
          asset produced across our history makes every change visible.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">As ever, round trip validation testing of
          thousands of X3D models along the way has given us great
          confidence that everything is work.  Then, when some little
          thing doesn’t work, we fix it.  Lather rinse repeat…<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Thanks to everyone on this list whose every
          comment typically does something to help the process.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Long time coming… Have fun with X3D4!  8)<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">all the best, Don<br>
          <span style="font-size:10.0pt;font-family:"Courier
            New",serif">-- <br>
            Don Brutzman  Naval Postgraduate School, Code USW/Br      
            <a class="moz-txt-link-abbreviated" href="mailto:brutzman@nps.edu">brutzman@nps.edu</a><br>
            Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA  
            +1.831.656.2149<br>
            X3D graphics, virtual worlds, navy robotics <a
              href="http://faculty.nps.edu/brutzman"
              moz-do-not-send="true">
              http://faculty.nps.edu/brutzman</a></span><o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div
          style="mso-element:para-border-div;border:none;border-top:solid
          #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
          <p class="MsoNormal" style="border:none;padding:0in"><b>From:
            </b><a href="mailto:yottzumm@gmail.com"
              moz-do-not-send="true">John Carlson</a><br>
            <b>Sent: </b>Tuesday, September 14, 2021 1:30 PM<br>
            <b>To: </b><a href="mailto:brutzman@nps.edu"
              moz-do-not-send="true">Brutzman, Donald (Don) (CIV)</a><br>
            <b>Cc: </b><a href="mailto:x3d-public@web3d.org"
              moz-do-not-send="true">X3D Graphics public mailing list</a><br>
            <b>Subject: </b>Re: [x3d-public] Mantis? No
            SceneGraphStructureStatement AbstractNodeType present in old
            X3D3 versions, X3DUOM</p>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p>Actually, the main focus of this thread was:</p>
          <p>There are many '<Inheritance
            baseType="SceneGraphStructureStatement"/>' in X3DUOM
            V3.0-V3.3.   There is no AbstractNodeType of
            SceneGraphStructureStatement in V3.* any more.</p>
          <p>I don't know if you want to remove the Inheritance or not. 
            There are '<xs:complexType
            name="SceneGraphStructureStatement" abstract="true">' in
            the XML schema V3.*. The complexType seems to have
            disappeared in translation to X3DUOM V3.*</p>
          <p>I will assume that the conversion from XML Schema to X3DUOM
            is broken for V3.*</p>
          <p>I could dig a bit further, but at this point, I think an
            issue of transferring complexTypes from XML Schema to X3DUOM
            V3.* has been identifiied.</p>
          <p>I agree that V3.* is deprecated at this point.   Ideally,
            we could get JSON Schemas checked into sourceforge.</p>
          <p>Likely, you are in the middle of testing.</p>
          <p>Going back into my cave.</p>
          <p>John</p>
          <p><o:p> </o:p></p>
          <div>
            <p class="MsoNormal">On 9/14/21 2:53 PM, John Carlson wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <div>
              <p class="MsoNormal">It sounds like we should focus on
                JSON schema 4.0, and leave old schemas behind.<o:p></o:p></p>
            </div>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
            </div>
            <div>
              <p class="MsoNormal">I have been validating files against
                various JSON schema versions.<o:p></o:p></p>
            </div>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
            </div>
            <div>
              <p class="MsoNormal">I think my main problem was setIS in
                a field value, which we started addressing Monday.<o:p></o:p></p>
            </div>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
            </div>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
            </div>
            <div>
              <p class="MsoNormal">I have a list of pressing issues if
                you’re ready.<o:p></o:p></p>
            </div>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
              <div>
                <div>
                  <p class="MsoNormal">On Tue, Sep 14, 2021 at 2:36 PM
                    Brutzman, Donald (Don) (CIV) <<a
                      href="mailto:brutzman@nps.edu"
                      moz-do-not-send="true">brutzman@nps.edu</a>>
                    wrote:<o:p></o:p></p>
                </div>
                <blockquote style="border:none;border-left:solid #CCCCCC
                  1.0pt;padding:0in 0in 0in
                  6.0pt;margin-left:4.8pt;margin-right:0in">
                  <div>
                    <div>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Regarding
                        backwards compatibility:</p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      <ul type="disc">
                        <li class="m997246790946943590msolistparagraph"
                          style="mso-list:l0 level1 lfo1">XML Schemas
                          are available for all versions of X3D, 3.0
                          through 4.0,  Each has evolved past the prior
                          version.<o:p></o:p></li>
                        <li class="m997246790946943590msolistparagraph"
                          style="mso-list:l0 level1 lfo1">X3DUOM is
                          autogenerated from each corresponding XML
                          schema, similarly showing evolution.<o:p></o:p></li>
                        <li class="m997246790946943590msolistparagraph"
                          style="mso-list:l0 level1 lfo1">We have paid a
                          lot of attention to forward/backward
                          compatibility among these many versions of X3D
                          and VRML97.<o:p></o:p></li>
                      </ul>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">It
                        is possible to maintain multiple versions of
                        corresponding software builds but that seems
                        fairly counterproductive.  Better is strategy at
                        top of X3DJSAIL page:</p>
                      <ul type="disc">
                        <li class="MsoNormal"
style="color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2
                          level1 lfo2">
                          <span
                            style="font-size:13.5pt;font-family:"Times
                            New Roman ,serif",serif">Test ongoing
                            development of <a
                              href="https://www.web3d.org/x3d4"
                              target="_blank" moz-do-not-send="true">X3D
                              version 4</a> (also supporting X3D
                            versions 3.0 through 3.3).</span><o:p></o:p></li>
                      </ul>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">So
                        X3DJSAIL, X3DPSAIL and X3D Ontology (and for
                        that matter XML Schema and X3D DOCTYPE) are
                        focused on 4.0 completeness in each
                        implementation, including backwards
                        compatibility to good effect.</p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thus
                        X3DUOM updates are not postponed at all, rather
                        these match exactly each version of the X3D
                        Specification as captured by X3D XML Schemas.</p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hope
                        this is clearer now.</p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">all
                        the best, Don</p>
                    </div>
                  </div>
                  <div>
                    <div>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><br>
                        <span
                          style="font-size:10.0pt;font-family:"Courier
                          New",serif">-- <br>
                          Don Brutzman  Naval Postgraduate School, Code
                          USW/Br       <a
                            href="mailto:brutzman@nps.edu"
                            target="_blank" moz-do-not-send="true">
                            brutzman@nps.edu</a><br>
                          Watkins 270,  MOVES Institute, Monterey CA
                          93943-5000 USA   +1.831.656.2149<br>
                          X3D graphics, virtual worlds, navy robotics <a
                            href="http://faculty.nps.edu/brutzman"
                            target="_blank" moz-do-not-send="true">
                            http://faculty.nps.edu/brutzman</a></span></p>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      <div style="border:none;border-top:solid #E1E1E1
                        1.0pt;padding:3.0pt 0in 0in 0in">
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:
                          </b><a href="mailto:yottzumm@gmail.com"
                            target="_blank" moz-do-not-send="true">John
                            Carlson</a><br>
                          <b>Sent: </b>Tuesday, September 7, 2021 10:42
                          AM<br>
                          <b>To: </b><a
                            href="mailto:x3d-public@web3d.org"
                            target="_blank" moz-do-not-send="true">X3D
                            Graphics public mailing list</a><br>
                          <b>Subject: </b>Re: [x3d-public] Mantis? No
                          SceneGraphStructureStatement AbstractNodeType
                          present in old X3D3 versions, X3DUOM</p>
                      </div>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      <div>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hmm. 
                          I mean IS field in fieldValue in X3DUOM.   I
                          guess X3DUOM updates are postponed until X3D4
                          is done.</p>
                      </div>
                      <div>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                      </div>
                      <div>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">John</p>
                      </div>
                      <div>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                        <div>
                          <div>
                            <p class="MsoNormal"
                              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On
                              Tue, Sep 7, 2021 at 12:28 PM John Carlson
                              <<a href="mailto:yottzumm@gmail.com"
                                target="_blank" moz-do-not-send="true">yottzumm@gmail.com</a>>
                              wrote:</p>
                          </div>
                          <blockquote
                            style="border:none;border-left:solid #CCCCCC
                            1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
                            <div>
                              <p class="MsoNormal"
                                style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">As
                                previously reported, I am fairly sure I
                                added an IS node (which creates a setIS
                                method).   I don’t think I checked any
                                of this in.</p>
                            </div>
                            <div>
                              <p class="MsoNormal"
                                style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                            </div>
                            <div>
                              <p class="MsoNormal"
                                style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
                                haven’t formally tested  JSON schema
                                that I remember.</p>
                            </div>
                            <div>
                              <p class="MsoNormal"
                                style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                            </div>
                            <div>
                              <p class="MsoNormal"
                                style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">John</p>
                            </div>
                            <div>
                              <p class="MsoNormal"
                                style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                              <div>
                                <div>
                                  <p class="MsoNormal"
                                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On
                                    Thu, Sep 2, 2021 at 9:38 PM John
                                    Carlson <<a
                                      href="mailto:yottzumm@gmail.com"
                                      target="_blank"
                                      moz-do-not-send="true">yottzumm@gmail.com</a>>
                                    wrote:</p>
                                </div>
                                <blockquote
                                  style="border:none;border-left:solid
                                  #CCCCCC 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
                                  <div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
                                        just discovered this draft.  
                                        Sorry for the delay.  I think
                                        the primary goal should be the
                                        alignment of the statement type
                                        hierarchy between X3D3 and X3D4.</p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’m
                                        wondering if my changes locally
                                        affected fieldValue.setIS as
                                        previously reported?  Or
                                        fieldValue.addChild(new IS())
                                        (IS is not a node)</p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
                                        am thinking someone should look
                                        at the type hierarchy
                                        differences for statements. If
                                        we go with X3D4, I will upgrade
                                        various examples.</p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
                                        guess the other solution is to
                                        provide different jars for X3D3
                                        versus X3D4.</p>
                                    </div>
                                  </div>
                                  <div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">John</p>
                                    </div>
                                  </div>
                                  <div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
                                      <div>
                                        <div>
                                          <p class="MsoNormal"
                                            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On
                                            Sat, Aug 28, 2021 at 4:09 PM
                                            John Carlson <<a
                                              href="mailto:yottzumm@gmail.com"
                                              target="_blank"
                                              moz-do-not-send="true">yottzumm@gmail.com</a>>
                                            wrote:</p>
                                        </div>
                                      </div>
                                    </div>
                                  </div>
                                </blockquote>
                              </div>
                            </div>
                          </blockquote>
                        </div>
                      </div>
                      <p class="MsoNormal"
                        style="mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:.2in">
                        I'm still having to back out updates to X3DUOM:<br>
                        <br>
                        $ grep SceneGraphStructureStatement
                        X3dUnifiedObjectModel*|sort -u<br>
                        X3dUnifiedObjectModel-3.0.xml:           
                        <Inheritance <br>
                        baseType="SceneGraphStructureStatement"/><br>
                        X3dUnifiedObjectModel-3.1.xml:           
                        <Inheritance <br>
                        baseType="SceneGraphStructureStatement"/><br>
                        X3dUnifiedObjectModel-3.2.xml:           
                        <Inheritance <br>
                        baseType="SceneGraphStructureStatement"/><br>
                        X3dUnifiedObjectModel-3.3.xml:           
                        <Inheritance <br>
                        baseType="SceneGraphStructureStatement"/><br>
                        <br>
                        Here's what's in the old X3D3 versions, but not
                        4.0:<br>
                        <br>
                               <AbstractNodeType
                        name="SceneGraphStructureStatement"><br>
                                  <InterfaceDefinition <br>
                        specificationUrl="<a
href="https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/concepts.html#scenegraph"
                          target="_blank" moz-do-not-send="true">https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/concepts.html#scenegraph</a>"<br>
                        appinfo="SceneGraphStructureStatement is a
                        marker interface that <br>
                        identifies statements relating to nonrenderable
                        scene graph structure. <br>
                        SceneGraphStructureStatement does not extend
                        from any other node type <br>
                        since it is not an explicit part of the X3D node
                        interface hierarchy, <br>
                        and DEF/USE is not appropriate for such
                        statements."><br>
                                     <componentInfo name="Core"
                        level="1"/><br>
                                     <field name="class"<br>
                                            type="SFString"<br>
                                            accessType="inputOutput"<br>
                                            baseType="xs:NMTOKENS"<br>
                                            description="The class
                        attribute on each X3D node <br>
                        and statement is a space-separated list of
                        classes, reserved for use by <br>
                        Cascading Style Sheets (CSS) and XML
                        stylesheets."/><br>
                                  </InterfaceDefinition><br>
                               </AbstractNodeType><br>
                        <br>
                        <br>
                        I am proceeding to delete the Inheritance nodes
                        from my  versions 3 <br>
                        X3DUOM. There are some "AdditionalInheritance"
                        elements that may need to <br>
                        be converted over to "Inheritance."<br>
                        <br>
                        If you want me to proceed with updating X3DUOM
                        and AdditionalInheritance <br>
                        on <a
href="https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsourceforge.net%2F&data=04%7C01%7Cbrutzman%40nps.edu%7Ca6c40bdaee4944a7f70908d977be74f0%7C6d936231a51740ea9199f7578963378e%7C0%7C0%7C637672482161086220%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=w%2FX%2Bs7Rsio4ApcwOSr5JJZfOfdN2MT97pgw7OQUd1Gs%3D&reserved=0"
                          target="_blank" moz-do-not-send="true">
                          sourceforge.net</a>, let me know, but that's
                        treading on unknown <br>
                        territory for me, updating the stuff that
                        creates X3DUOM.  I assume this <br>
                        means updating XML schema versions 3.  Is there
                        a Mantis issue yet? I am <br>
                        capable of filing one, I hope.<br>
                        <br>
                        I am not currently testing anything that uses
                        X3DUOM besides my own <br>
                        stuff. Mostly, I am just trying to get the JSON
                        schema working.<br>
                        <br>
                        Thanks!<br>
                        <br>
                        John</p>
                    </div>
                  </div>
                </blockquote>
              </div>
            </div>
          </blockquote>
        </div>
        <p class="MsoNormal"
style="mso-margin-top-alt:auto;margin-right:.5in;mso-margin-bottom-alt:auto;margin-left:40.8pt"> </p>
        <p class="MsoNormal"><o:p> </o:p></p>
      </div>
    </blockquote>
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