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--></style></head><body lang=EN-US link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><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">John Carlson</a><br><b>Sent: </b>Tuesday, March 22, 2022 2:26 PM<br><b>To: </b><a href="mailto:joedwil@earthlink.net">Joseph D Williams</a><br><b>Cc: </b><a href="mailto:brutzman@nps.edu">Brutzman, Donald (Don) (CIV)</a>; <a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>Re: [x3d-public] C# opportunities, X3DJSONLD/JS or XSLT</p></div><p class=MsoNormal><o:p> </o:p></p><div><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l2 level1 lfo4'>JSON import/export has been shown in the X3DJSONLD app. </li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>This is when we can start looking a Don’s list from below:</p><p class=MsoNormal><o:p> </o:p></p></div><ol start=1 type=a><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>first need a codebase to run models and to test them,</li></ol><p class=gmail-m-8280597912172071801msolistparagraph>seems like we have many examples of successful conversion<o:p></o:p></p><ol start=2 type=a><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>this should match a draft specification,</li></ol><p class=gmail-m-8280597912172071801msolistparagraph>a draft specification should prpbly look like the xml and Classic encodings specification, showing the same objectives and backed up with a development schema to evaluate against xml schema documents. <o:p></o:p></p><ol start=3 type=a><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>then we can write a converter,</li></ol><p class=gmail-m-8280597912172071801msolistparagraph>the development converter seems to be (have been) in service, so what is meant is that an ‘official’ converter<o:p></o:p></p><ol start=4 type=a><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>then we can convert X3D models and test them in new language,</li></ol><p class=gmail-m-8280597912172071801msolistparagraph>some of this has already been done<o:p></o:p></p><ol start=5 type=a><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>then we get each one working and matching/improving the draft language specification for X3D</li></ol><p class=gmail-m-8280597912172071801msolistparagraph>.. the new encoding moves onto the standards track. That is happening with drafts of the scripting language extensions<o:p></o:p></p><ul type=disc><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l2 level1 lfo4'> We have partial working c/c++ (X3DJSONLD) based on examples found on sourceforge, which I presume work. We have a new C/C++/C# interface that needs to be tested. We don't know if any new/upated examples are forthcoming from Myeong.</li></ul><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>This entire task is different because it relates to the new scripting language extensions in draft now. The only overlap might come when we decide that x3d script node is also encoded in json. Otherwise, the tests for this include every x3d scene using a script node, as well as some new ones..</p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>All this actual work is guided by Don but I think the most important json capability is that an author should be able to create various json (or xml or classic) encoded data for import by named file and property to any field of any node. Example ways to name and organize data using json are shown in collada and gltf and can be used a guide for authors, especially gltf because that more or less guarantees certain data types in certain fields. </p></div><div><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l2 level1 lfo4'>So I'm trying to get up to speed on C/C++ way of programming to the interfaces that Myeong provided. I am hoping that someone picks up the C# examples.</li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>That will help that part of the process. </p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l2 level1 lfo4'>I'll speak with you in private, Joe, probably sometime today.</li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Give a yell anytime. My big question now is that if we can create a complete json schema then can we also create a complete x3d Classic encoding schema.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>All Best, </p><p class=MsoNormal>Joe</p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Tue, Mar 22, 2022 at 3:42 PM Joseph D Williams <<a href="mailto:joedwil@earthlink.net">joedwil@earthlink.net</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-right:0in'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><ul type=disc><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l3 level1 lfo1'>then we can convert X3D models</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'>OK, seems now I see (at least) two big ‘convert’ works. </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>One is simply to show that x3d canonical syntax can be represented in various alternative encodings, one being json, and that the encoding can then have a schema in that encoding, and that the encoding can be returned to canonical x3d syntax for validation. </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Two is to validate new scripting languages and how they can be used in an x3d script node. </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'>Funny enough, I think Two is the most simple, just show working code to show functionality of the SAI for important browser and scene context using a scripting language other than ECMAScript or java, the same way that ECMAScript and java works in an execution context. C and Cwhatever have been and are important. Especially when developing complex prototypes when you needed max simulation power for graphics and math algorithms. Much of this need is now exposed in the html browser by the gl, and along with the incredible speedups of java and ECMAScript running in the html browser making x3d in html almost as many possibilities as running x3d ‘standalone’ browser directly in our www. However, when doing complicated stuff, like stuff that performs complex realistic behaviors, authors may still need to go deeper and faster into the C. </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'>The One has plenty of examples, simply present a systematic determination of best practice conversion of an existing, known to be validated canonical xml encoding into the alternate syntax, for example json, then back. That is what was done for the xmlization of vrml. In a way, this is also the thing for gltf2 also. However, the gltf2 has its own schema for each of its features, and may not apply directly or completely to any x3d nodes, so are distinct from any json schema that may be derived directly from xml schema (if possible?). </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'>However, my overall feeling is that Yes, x3d should formulate a specific standard for importing data for any field of any node using a json form where the x3d user code for the field of the node names the json file and the field to be imported for that field. The author should have control of those names and one json file may contain named data for more than one field of an x3d node, and/or contain named data fields used in more than one x3d node. </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>This is general purpose json import/export for x3d not necessarily related to gltf2. The gltf forms serve special cases where an independent standards body has decided to define some general-purpose data items commonly used in industrial graphics operations using json form. Of course x3d finds these gltf mostly very useful because, of course, they carry data used in everyday x3d. </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The general case of json import/export where the author decides how to actually obtain/deliver authortime/runtime json data structures from/to a json file for some purpose whenever from wherever adds json power (whatever that may turn out to be) in x3d. </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'>Thanks, </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Joe</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'> </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:brutzman@nps.edu" target="_blank">Brutzman, Donald (Don) (CIV)</a><br><b>Sent: </b>Monday, March 21, 2022 1:56 AM<br><b>To: </b><a href="mailto:joedwil@earthlink.net" target="_blank">Joseph D Williams</a>; <a href="mailto:yottzumm@gmail.com" target="_blank">John Carlson</a>; <a href="mailto:x3d-public@web3d.org" target="_blank">X3D Graphics public mailing list</a><br><b>Cc: </b><a href="mailto:brutzman@nps.edu" target="_blank">Brutzman, Donald (Don) (CIV)</a><br><b>Subject: </b>RE: [x3d-public] C# opportunities, X3DJSONLD/JS or XSLT</p></div><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'>Yes that is the spirit, one conversion at a time, one step at a time.</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'>As shown and reported repeatedly with JSON Java Python Turtle etc., reinforcing John’s p:</p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><ol start=6 type=a><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>first need a codebase to run models and to test them,</li><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>this should match a draft specification,</li><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>then we can write a converter,</li><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>then we can convert X3D models and test them in new language,</li><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l0 level1 lfo2'>then we get each one working and matching/improving the draft language specification for X3D</li></ol><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'>Once this process is established satisfactorily for a few X3D models, then the conversion-validation tasks can be added to our build scripts for 3900+ X3D Examples models.</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'>Each of those model conversions occurs one at a time. Each of the successes or failures are reviewed one at a time. Each bug that occurs is corrected and improved one at a time. Rinse lather repeat.</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'>Library authors and users then have an extremely high level of confidence that the code works, and a thorough build log reveals any bugs that still need fixing.</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'>Proven process for success. Have fun with X3D! 8)</p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Courier New"'> </span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Courier New"'>all the best, Don</span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Courier New"'>-- </span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Courier New"'>Don Brutzman Naval Postgraduate School, Code USW/Br <a href="mailto:brutzman@nps.edu" target="_blank">brutzman@nps.edu</a></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Courier New"'>Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149</span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><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"'><a href="http://faculty.nps.edu/brutzman" target="_blank">faculty.nps.edu/brutzman</a></span></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><div><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> x3d-public <<a href="mailto:x3d-public-bounces@web3d.org" target="_blank">x3d-public-bounces@web3d.org</a>> <b>On Behalf Of </b>Joseph D Williams<br><b>Sent:</b> Sunday, March 20, 2022 5:16 PM<br><b>To:</b> John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>>; X3D Graphics public mailing list <<a href="mailto:x3d-public@web3d.org" target="_blank">x3d-public@web3d.org</a>><br><b>Subject:</b> Re: [x3d-public] C# opportunities, X3DJSONLD/JS or XSLT</p></div></div><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'> </p><ul type=disc><li class=gmail-m-8280597912172071801msolistparagraph style='mso-list:l1 level1 lfo3'>The goal is to convert 3000+ xml documents to c#.</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'>Please show me the first one you wish to convert. </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'>Thanks,</p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Joe</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'> </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">John Carlson</a><br><b>Sent: </b>Sunday, March 20, 2022 12:52 PM<br><b>To: </b><a href="mailto:x3d-public@web3d.org" target="_blank">X3D Graphics public mailing list</a><br><b>Subject: </b>[x3d-public] C# opportunities, X3DJSONLD/JS or XSLT</p></div><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'>There is an opportunity for a C#/JavaScript/XSLT programmer to contribute to X3D.</p><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'>We would like to serialize SAI C# code from DOM documents, using JavaScript. There are examples to follow, including Java, C and C++ serializers (perhaps c/c++ are incomplete)</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'>Alternatively, we could write XSLT instead of JavaScript. We have many examples to follow, including Python.</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'>Alternatively, we could write C# instead of XSLT or JavaScript.</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'>The goal is to convert 3000+ xml documents to c#.</p></div><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'>John</p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div></div></blockquote></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:4.8pt'> </p><p class=MsoNormal><o:p> </o:p></p></div></body></html>