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</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Attendees: John Carlson, Vince Marchetti, Nicholas Polys, Dick Puk, Don Brutzman. Regrets Anita Havele.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Noted spiffy update to Web3D Consortium home page layout – thanks Anita.<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:l7 level1 lfo15">https://www.web3D.org
<o:p></o:p></li></ul>
<div style="mso-element:para-border-div;border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in">
<p class="MsoNormal" style="border:none;padding:0in"><o:p> </o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l11 level1 lfo9">
<i>X3D Programming Language bindings for C++/C</i>#. Regarding C++/C#, we discussed how:<o:p></o:p></li></ol>
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo8">No C for now.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo8">Draft documents are on github but really need review as sensible, do-able in code (repeatable), ready for direct editing updates.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo8">Initial testing of Korea codebase on representative X3D example scenes. Resolution of license status would be helpful too.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo8">Confirm compatibility with .net approaches, include minimal informative annex on .net (but only if necessary).<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo8">Once at that threshold of interface maturity, we might autogenerate a second implementation via X3DUOM.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo8">Any later additions to X3D4 Architecture 19775-1 or abstract Scene Access Interface (SAI) 19775-2 are easily reconciled later.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo8">We need an editor still.<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Question: does FreeWRL or Coin3D (both open source codebases) have any C/C++ that can be compared to SAI? Are they similar or different to Korea codebase? Is there somebody out in those arenas interested in participating?<o:p></o:p></p>
<div style="mso-element:para-border-div;border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in">
<p class="MsoNormal" style="border:none;padding:0in"><o:p> </o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="2" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l11 level1 lfo9">
<i>Mantis issues for X3D Architecture Specification review</i>. With today’s meeting, 255 issues are now down to 175 open issues with no MAJOR issues remaining.<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Request review of major omnibus issue by Michalis:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l10 level2 lfo2">
Mantis 1269<span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3"> glTF physically based rendering PBR, advanced material textures and lighting</span><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l10 level2 lfo2">
https://www.web3d.org/member-only/mantis/view.php?id=1269<o:p></o:p></li></ul>
</ol>
<p class="MsoNormal">Our assessment is this is nearly complete, <i>EnvironmentLight</i> needs to be confirmed stable<b>, we can reduce this from major
</b>(no blockers) and confirm we are on endgame. Since Khronos has formally submitted glTF as Publicly Available Specification (PAS) to ISO, we should be able to confirm that we are fully aligned. Michalis please meet with Dick and Don to sort out Mantis
status.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Request review of major issue by Nicholas:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l8 level2 lfo11">
Mantis <span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3">
1265: Text size clarification, relative to baseline</span><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l8 level2 lfo11">
https://www.web3d.org/member-only/mantis/view.php?id=1265<o:p></o:p></li></ul>
</ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3">Vince posted a test scene and example screenshots. Summary of status can be found on email thread. Apparently 4 players have solved the identified
problem satisfactorily.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3">http://web3d.org/pipermail/x3d-public_web3d.org/2022-January/016561.html</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"><br clear="all">
<br clear="all">
<span style="background:#F3F3F3">Dick reported how extremely thorough design was the basis of our internationalized text model in the X3D Architecture. We should remain reluctant to change it. The goal is not "pixel perfect" presentation but rather satisfactory
presentation.</span><br clear="all">
<br clear="all">
<span style="background:#F3F3F3">Nicholas (who has world-class expertise on this topic, see his dissertation) also thinks our basic model is satisfactory. We have many examples but maybe have not identified or consolidated on a smaller set of examples that
illustrate what we need.</span><br clear="all">
<br clear="all">
<span style="background:#F3F3F3">We are <b>reducing severity from MAJOR to MINOR</b>. Issue 1265 ownership remains assigned to Nicholas.<o:p></o:p></span></span></p>
<div style="mso-element:para-border-div;border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in">
<p class="MsoNormal" style="border:none;padding:0in"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">3. <i>Projects Wish List</i>. https://www.web3d.org/projects/wish-list<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l0 level1 lfo13">
Add View3Dscene to section 1 to note available as open source, fully implementing glTF.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l0 level1 lfo13">
Does X3DOM support ROUTE? Yes. Prototypes? Maybe – interesting recent examples posted. X3D Scripts? No. Hoping Andreas might provide succinct status and where help is useful, we will then discuss further on x3dom-developers list.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l0 level1 lfo13">
Crucial issue common to X3DOM, X_ITE, view3DScene: plans for supporting WebXR? This should be elevated as #1 wish list on client side.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l0 level1 lfo13">
Tool side: Blender is our top issue. Is a concerted team effort appropriate (or possible)? Perhaps on an issue-by-issue basis? The latest Blender 3.0 import/export has shown good progress is now stable from an X3D perspective (thanks to a fix by Andreas)
so working on individual improvements is feasible. One is underway on ImageTexture that is revealing additional bugs… so maybe just encouragement of individuals to solve problems is what we need. We can also elevate how we report progress publicly in order
to build confidence. Web3D Consortium members who have stakeholder interest in ought to discuss this closely. Can Blender Foundation, or some set of coders associated with that group working for money, help? How can we get money flowing to professional
Blender programmers here?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l0 level1 lfo13">
Our Blender project: https://github.com/Web3DConsortium/BlenderX3DSupport<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l0 level1 lfo13">
Tool side: MeshLab. Next week please, if CRNI can attend that will be great.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l0 level1 lfo13">
Don will continue to edit and update the page. This wish list will continue to get reviewed every week.<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">John asked a question about protos continue on mailing list please. Please look around, a great many prototype examples are online, some with an explanatory book chapter. Also available is a very thorough X3D Validator.<o:p></o:p></p>
<div style="mso-element:para-border-div;border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in">
<p class="MsoNormal" style="border:none;padding:0in"><o:p> </o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Next week. We will continue our tools focus with MeshLab. All ideas and inputs welcome.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l8 level2 lfo11">
https://www.meshlab.net<o:p></o:p></li></ul>
</ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Step by step... Quote from Thanos in movie <i>Avengers Endgame</i>: “Inevitable.”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Have fun with X3D! 8)<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">all the best, Don<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">-- <o:p>
</o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">X3D graphics, virtual worlds, Navy robotics https://</span>
<span style="font-size:10.0pt;font-family:"Courier New"">faculty.nps.edu/brutzman<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Brutzman, Donald (Don) (CIV) <br>
<b>Sent:</b> Thursday, January 20, 2022 4:18 PM<br>
<b>To:</b> X3D Public Mailing List (x3d-public@web3d.org) <x3d-public@web3d.org><br>
<b>Cc:</b> brutzman@nps.edu<br>
<b>Subject:</b> X3D working group agenda 21 JAN 2022: progress, Mantis issue resolution, Projects Wish List, IMPORT/EXPORT<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The X3D Working Group meets each Friday at 0800-0900 pacific time. Videoconference Connectivity:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoPlainText" style="mso-list:l1 level1 lfo1">https://us02web.zoom.us/j/81634670698?pwd=a1VPeU5tN01rc21Oa3hScUlHK0Rxdz09
<o:p></o:p></li><li class="MsoPlainText" style="mso-list:l1 level1 lfo1">https://zoom.us/j/148206572 Password 483805
<o:p></o:p></li><li class="MsoPlainText" style="mso-list:l1 level1 lfo1">https://www.web3d.org/member/teleconference-information
<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All inputs welcome. Agenda follows.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level1 lfo12">
Anyone have new project progress to report (with image to share) this week? Outreach is welcome.<o:p></o:p></li></ol>
<p class="MsoListParagraph" style="margin-left:.25in"><o:p> </o:p></p>
<ol style="margin-top:0in" start="2" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level1 lfo12">
Excellent visibility of meeting minutes and other progress on Twitter, we will continue.<o:p></o:p></li><ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
https://twitter.com/Web3Dconsortium<o:p></o:p></li></ul>
</ol>
<p class="MsoListParagraph" style="margin-left:.25in"><o:p> </o:p></p>
<ol style="margin-top:0in" start="3" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level1 lfo12">
Dick and I are spec editors steadily fixing issues but making progress too slowly. We request review.<o:p></o:p></li><ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
We started with 250 issues a year ago, we are down to 175. Four months to go…<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
The hardest issues are addressed. Only 2 “major” issues remain.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
Issue list attached. Please identify any topic priorities you have.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
Help requested. Special opportunity: editing first-draft spec and implementation testing of X3D C++ C# bindings.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
We will keep going but finishing is not yet in reach… Will we be punting open issues to future X3D4.1 ?<o:p></o:p></li></ul>
</ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Request review of major issue by Nicholas:<o:p></o:p></p>
<ol style="margin-top:0in" start="3" type="1">
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
Mantis <span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3">
1265: Text size clarification, relative to baseline</span><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
https://www.web3d.org/member-only/mantis/view.php?id=1265<o:p></o:p></li></ul>
</ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Request review of major omnibus issue by Michalis:<o:p></o:p></p>
<ol style="margin-top:0in" start="3" type="1">
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
Mantis 1269<span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3"> glTF physically based rendering PBR, advanced material textures and lighting</span><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
https://www.web3d.org/member-only/mantis/view.php?id=1269<o:p></o:p></li></ul>
</ol>
<p class="MsoListParagraph" style="margin-left:.25in"><o:p> </o:p></p>
<ol style="margin-top:0in" start="4" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level1 lfo12">
Projects Wish List update discussion: we will look closely again next week.<o:p></o:p></li><ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
Work with MeshLab and Blender seems especially important.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
Can we add “how to get involved?” to each major item.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
https://www.web3d.org/projects/wish-list<o:p></o:p></li></ul>
</ol>
<p class="MsoListParagraph" style="margin-left:.25in"><o:p> </o:p></p>
<ol style="margin-top:0in" start="5" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level1 lfo12">
Dick and I worked on IMPORT/EXPORT issue today, to good effect<o:p></o:p></li><ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
Mantis <span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black;background:#F3F3F3">
1109: 04.4.6 Import/Export semantics - Need to specify uniqueness of names</span><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
https://www.web3d.org/member-only/mantis/view.php?id=1109<o:p></o:p></li></ul>
</ol>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<ol style="margin-top:0in" start="5" type="1">
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
X3D4 Architecture, Networking component, 9.2.5 IMPORT statement<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/networking.html#IMPORTStatement<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
X3D4 Architecture, Networking component, 9.2.6 IMPORT statement<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level2 lfo12">
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/networking.html#EXPORTStatement<o:p></o:p></li></ul>
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<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="6" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l12 level1 lfo12">
What else?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Membership definitely has value, including visibility into Mantis issue list. Hope you consider the possibilities.<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l9 level1 lfo3">Join Web3D Consortium<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l9 level1 lfo3">https://www.web3D.org/join<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Have fun with X3D! 8)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<h2><a name="IMPORTStatement"></a><span lang="EN" style="font-size:14.5pt;font-family:"Verdana",sans-serif;color:black">9.2.5 IMPORT statement<o:p></o:p></span></h2>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The IMPORT statement is used within an X3D file to specify nodes, which are defined within Inline files or programmatically created content, that are to be brought into the namespace of
the containing file for the purposes of event routing. Once a node is imported, events may be sent to its fields via ROUTEs, or routed from any fields of the node which have output events.<o:p></o:p></span></p>
<p style="background:yellow"><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">IMPORT statements may appear anywhere in the file and have the following form:<o:p></o:p></span></p>
<p style="background:yellow"><span class="code"><span lang="EN" style="font-size:13.0pt;color:black">IMPORT <InlineNodeName><b>.</b><ExportedNameFromInlinedFile> [ AS <NewLocalNodeName> ]
</span></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black"><o:p></o:p></span></p>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The IMPORT statement has the following components:<o:p></o:p></span></p>
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l13 level1 lfo4">
<span lang="EN" style="font-family:"Verdana",sans-serif">The name of the Inline node that contains the node to be imported
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l13 level1 lfo4">
<span lang="EN" style="font-family:"Verdana",sans-serif">The name of the node to import
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l13 level1 lfo4">
<span lang="EN" style="font-family:"Verdana",sans-serif">An optional name <span class="proposeddeletion1">
to be</span> <span class="proposed1">that is</span> used as an alias for the imported node within the run-time name scope, to help prevent name clashes within the parent scene containing the IMPORT statement.<o:p></o:p></span></li></ol>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The IMPORT statement has the following semantics:<o:p></o:p></span></p>
<ol style="margin-top:0in" start="4" type="a">
<li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo5">
<span lang="EN" style="font-family:"Verdana",sans-serif">Once imported, events may be routed to or from the imported node in exactly the same manner as any node defined with DEF.
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo5">
<span lang="EN" style="font-family:"Verdana",sans-serif">Nodes imported into an X3D scene using the IMPORT statement may not be instanced via the USE statement.
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo5">
<span lang="EN" style="font-family:"Verdana",sans-serif">Only nodes that are exported from within the Inline via an EXPORT statement may be imported using a corresponding IMPORT statement.
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo5">
<span class="proposed1"><span lang="EN" style="font-family:"Verdana",sans-serif">The IMPORT statement can appear wherever a ROUTE statement is allowed, and shall follow the Inline node to which it refers.</span></span><span lang="EN" style="font-family:"Verdana",sans-serif"><o:p></o:p></span></li></ol>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The following example illustrates the use of the IMPORT statement (Classic VRML encoding syntax):<o:p></o:p></span></p>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">DEF I1 Inline {<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt"> url "someurl.x3d"<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">}<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt"> . . .<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt"><o:p> </o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">IMPORT I1.rootTransform AS I1Root<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">DEF PI PositionInterpolator { ... }<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">ROUTE PI.value_changed TO I1Root.set_translation<o:p></o:p></span></b></pre>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">In the above example,
</span><span class="code"><span lang="EN" style="font-size:13.0pt;color:black">rootTransform</span></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black"> is defined as a Transform node in the file someurl.x3d and exported via an EXPORT
statement (see <a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/concepts.html#EXPORTSemantics">
4.4.6.3 EXPORT semantics</a>). The optional AS keyword defines an alias for </span>
<span class="code"><span lang="EN" style="font-size:13.0pt;color:black">rootTransform</span></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black"> so that within the containing scene the node is referenced using the DEF name
</span><span class="code"><span lang="EN" style="font-size:13.0pt;color:black">I1Root</span></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">.
<span class="proposed1">All defined alias AS names shall also meet appropriate uniqueness requirements in the local DEF namespace of the parent scene.
</span><o:p></o:p></span></p>
<h2><a name="EXPORTStatement"></a><span lang="EN" style="font-size:14.5pt;font-family:"Verdana",sans-serif;color:black">9.2.6 EXPORT statement<o:p></o:p></span></h2>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The EXPORT statement is used within an X3D file to specify nodes that may be imported into other scenes when Inlining that file. Only named nodes exported with an EXPORT statement are eligible
to be imported into another file.<o:p></o:p></span></p>
<p style="background:yellow"><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">EXPORT statements may appear anywhere in the file and have the following form:<o:p></o:p></span></p>
<p style="background:yellow"><span class="code"><span lang="EN" style="font-size:13.0pt;color:black">EXPORT <NodeName> [ AS <ExportedNodeName> ]
</span></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black"><o:p></o:p></span></p>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The EXPORT statement has the following components:<o:p></o:p></span></p>
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l4 level1 lfo6">
<span lang="EN" style="font-family:"Verdana",sans-serif">The DEF name of the node to be exported
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l4 level1 lfo6">
<span lang="EN" style="font-family:"Verdana",sans-serif">An optional name <span class="proposeddeletion1">
to be</span> <span class="proposed1">that is</span> used as an alias for the exported node when importing it into other files
<o:p></o:p></span></li></ol>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The EXPORT statement has the following semantics:<o:p></o:p></span></p>
<ol style="margin-top:0in" start="3" type="a">
<li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo7">
<span lang="EN" style="font-family:"Verdana",sans-serif">Once imported into a containing scene, events may be routed to or from an exported node in exactly the same manner as any node defined with DEF.
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo7">
<span lang="EN" style="font-family:"Verdana",sans-serif">Exported nodes imported into a containing scene may not be instanced via the USE statement.
<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo7">
<span lang="EN" style="font-family:"Verdana",sans-serif">Exportation may not be propagated across multiple files; that is, a node imported into one scene using the IMPORT statement may not then be further exported into another scene using the EXPORT statement.<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo7">
<span lang="EN" style="font-family:"Verdana",sans-serif">Nodes shall not be exported from the body of a PROTO declaration.<o:p></o:p></span></li><li class="MsoNormal" style="color:black;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo7">
<span class="proposed1"><span lang="EN" style="font-family:"Verdana",sans-serif">The EXPORT statement can appear wherever a ROUTE statement is allowed, and shall be contained within the Inline node to which it refers.</span></span><span lang="EN" style="font-family:"Verdana",sans-serif"><o:p></o:p></span></li></ol>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">The following example illustrates the use of the EXPORT statement (Classic VRML encoding):<o:p></o:p></span></p>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">DEF T1 Transform {<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt"> ...<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">}<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt"> . . .<o:p></o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt"><o:p> </o:p></span></b></pre>
<pre style="margin-left:11.25pt"><b><span lang="EN" style="font-size:9.5pt">EXPORT T1 AS rootTransform <o:p></o:p></span></b></pre>
<p><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">In the above example, node
</span><span class="code"><span lang="EN" style="font-size:13.0pt;color:black">T1</span></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black"> is exported for use by other X3D scenes. The optional AS keyword defines the exported name of
</span><span class="code"><b><span lang="EN" style="font-size:13.0pt;color:black">T1</span></b></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black"> as
</span><span class="code"><b><span lang="EN" style="font-size:13.0pt;color:black">rootTransform</span></b></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black"> (
<i>i.e.</i>, other scenes may import the node only using the name </span><span class="code"><span lang="EN" style="font-size:13.0pt;color:black">rootTransform</span></span><span lang="EN" style="font-family:"Verdana",sans-serif;color:black">).
<span class="proposed1">All defined alias AS names shall also meet appropriate uniqueness requirements in the local DEF namespace of the parent scene.
</span><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">all the best, Don<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">-- <o:p>
</o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Don Brutzman Naval Postgraduate School, Code USW/Br
<a href="mailto:brutzman@nps.edu">brutzman@nps.edu</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">X3D graphics, virtual worlds, Navy robotics https://</span>
<span style="font-size:10.0pt;font-family:"Courier New"">faculty.nps.edu/brutzman<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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