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    <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.<br>
    </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.*<br>
    </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.<br>
    </p>
    <p>Likely, you are in the middle of testing.</p>
    <p>Going back into my cave.</p>
    <p>John<br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 9/14/21 2:53 PM, John Carlson wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAGC3UE=W6M=hS5nTjU9-hUnkmHVEp1q9adV36S_Wir2Bnw4rGQ@mail.gmail.com">
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      <div dir="auto">It sounds like we should focus on JSON schema 4.0,
        and leave old schemas behind.</div>
      <div dir="auto"><br>
      </div>
      <div dir="auto">I have been validating files against various JSON
        schema versions.</div>
      <div dir="auto"><br>
      </div>
      <div dir="auto">I think my main problem was setIS in a field
        value, which we started addressing Monday.</div>
      <div dir="auto"><br>
      </div>
      <div dir="auto"><br>
      </div>
      <div dir="auto">I have a list of pressing issues if you’re ready.</div>
      <div><br>
        <div class="gmail_quote">
          <div dir="ltr" class="gmail_attr">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:<br>
          </div>
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0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">
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                <p class="MsoNormal">Regarding backwards compatibility:</p>
                <p class="MsoNormal"> </p>
                <ul style="margin-top:0in" type="disc">
                  <li class="m_997246790946943590MsoListParagraph"
                    style="margin-left:0in">XML Schemas are available
                    for all versions of X3D, 3.0 through 4.0,  Each has
                    evolved past the prior version.</li>
                  <li class="m_997246790946943590MsoListParagraph"
                    style="margin-left:0in">X3DUOM is autogenerated from
                    each corresponding XML schema, similarly showing
                    evolution.</li>
                  <li class="m_997246790946943590MsoListParagraph"
                    style="margin-left:0in">We have paid a lot of
                    attention to forward/backward compatibility among
                    these many versions of X3D and VRML97.</li>
                </ul>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">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">
                    <span
                      style="font-size:13.5pt;font-family:"Times
                      New Roman",serif">Test ongoing development
                      of <a href="https://www.web3d.org/x3d4"
                        target="_blank" style="font-family:"Times
                        New Roman",serif" moz-do-not-send="true">X3D
                        version 4</a> (also supporting X3D versions 3.0
                      through 3.3).</span></li>
                </ul>
                <p class="MsoNormal">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"> </p>
                <p class="MsoNormal">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"> </p>
                <p class="MsoNormal">Hope this is clearer now.</p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">all the best, Don</p>
              </div>
            </div>
            <div link="blue" vlink="#954F72"
              style="word-wrap:break-word" lang="EN-US">
              <div class="m_997246790946943590WordSection1">
                <p class="MsoNormal"><br>
                  <span style="font-size:10pt;font-family:"Courier
                    New"">-- <br>
                    Don Brutzman  Naval Postgraduate School, Code
                    USW/Br       <a href="mailto:brutzman@nps.edu"
                      target="_blank" style="font-family:"Courier
                      New"" 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" style="font-family:"Courier
                      New"" moz-do-not-send="true">
                      http://faculty.nps.edu/brutzman</a></span></p>
                <p class="MsoNormal"> </p>
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                  <p class="MsoNormal" style="border:none;padding:0in"><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>
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                <p class="MsoNormal"> </p>
                <div>
                  <p class="MsoNormal">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"> </p>
                </div>
                <div>
                  <p class="MsoNormal">John</p>
                </div>
                <div>
                  <p class="MsoNormal"> </p>
                  <div>
                    <div>
                      <p class="MsoNormal">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>
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                        <p class="MsoNormal">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"> </p>
                      </div>
                      <div>
                        <p class="MsoNormal">I haven’t formally tested
                           JSON schema that I remember.</p>
                      </div>
                      <div>
                        <p class="MsoNormal"> </p>
                      </div>
                      <div>
                        <p class="MsoNormal">John</p>
                      </div>
                      <div>
                        <p class="MsoNormal"> </p>
                        <div>
                          <div>
                            <p class="MsoNormal">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>
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                                <p class="MsoNormal">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"> </p>
                              </div>
                              <div>
                                <p class="MsoNormal">I’m wondering if my
                                  changes locally affected
                                  fieldValue.setIS as previously
                                  reported?  Or fieldValue.addChild(new
                                  IS()) (IS is not a node)</p>
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                              <div>
                                <p class="MsoNormal"> </p>
                              </div>
                              <div>
                                <p class="MsoNormal">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"> </p>
                              </div>
                              <div>
                                <p class="MsoNormal">I guess the other
                                  solution is to provide different jars
                                  for X3D3 versus X3D4.</p>
                              </div>
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                            <div>
                              <div>
                                <p class="MsoNormal"> </p>
                              </div>
                              <div>
                                <p class="MsoNormal">John</p>
                              </div>
                            </div>
                            <div>
                              <div>
                                <p class="MsoNormal"> </p>
                                <div>
                                  <div>
                                    <p class="MsoNormal">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>
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                <p class="MsoNormal"
                  style="margin-right:0in;margin-bottom:12pt;margin-left:0.2in">
                  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%7C14ad8d313ab94fccae3208d97226ccdc%7C6d936231a51740ea9199f7578963378e%7C0%7C0%7C637666333260834274%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=mnVeGHLC%2B5v7Tn1eIq4CpKX%2BQIf3r%2FIuh31UL6grDss%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>
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