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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>John, it is great that you explore and do a lot of things, thank you.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Unfortunately your next message seems very puzzling to me. Rather than respond, let me point out some fundamental building blocks please.<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:0in;mso-list:l1 level1 lfo1'>We have X3D 4.0 with interpolators, event passing, HAnim inclusion, many other things.<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l1 level1 lfo1'>HAnim animation includes interpolator approaches (well tested) and BVH-style HAnimMotion (only a few tests, BVHacker might be useful).<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l1 level1 lfo1'>We have X3D equivalently expressible in XML, ClassicVRML, binary, Java and Python.<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l1 level1 lfo1'>We do not yet have, and certainly could use, a validating X3D JSON schema and an SAI-compliant X3D ECMAScript library.<o:p></o:p></li></ol><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Repeating:<o:p></o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l2 level1 lfo3'>Can your work get us (d) above?<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l2 level1 lfo3'>X3D group is not doing Microsoft TypeScript or other new languages while upgrading standards documents, libraries and test-archive examples thoroughly to each of our approved paths.<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Focusing is good, and X3D group will stay focused on an already-large agenda.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Again thanks and good luck with your efforts.<o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>all the best, Don<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>-- <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;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:9.0pt;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:9.0pt;font-family:"Courier New"'>X3D graphics, virtual worlds, navy robotics https://faculty.nps.edu/brutzman<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> x3d-public <x3d-public-bounces@web3d.org> <b>On Behalf Of </b>John Carlson<br><b>Sent:</b> Saturday, August 26, 2023 2:10 AM<br><b>To:</b> X3D Graphics public mailing list <x3d-public@web3d.org>; Holger Seelig <holger.seelig@yahoo.de><br><b>Subject:</b> [x3d-public] BVHacker, HAnim transformation, TypeScript SAI?<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal>I would like to create a way to "render" HAnim animations/transformations to one or more X3D encodings, in particular, I would like to do this in a headless manner (no screen involved). In particular, I would like to solve the problem of moving the humanoid between different poses and saving them off. I realize that many animation tools probably already do this. I know that SFMatrix and MFMatrix SAI can do matrix multiplication (no quaternions??) and that may be important. But more important is making skins and skeletons from different systems to work together. Doug recommended BVHacker, <a href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbvhacker.com%2F&data=05%7C01%7Cbrutzman%40nps.edu%7Cd9e0f5e5d4b44ca8974808dba61455d6%7C6d936231a51740ea9199f7578963378e%7C0%7C0%7C638286378509592461%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=MjsHxXkfxI46FBjrUx67TH4NTs5PGfX50FrAftbEYy0%3D&reserved=0">bvhacker - home</a>.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I would use X3DOM or X_ITE if I could separate the rendering, X_ITE has Browser.toJSONString(), which I may experiment a bit with, and I want to address the skin and the skeleton separately, like rotating the skin 180 degrees, but not the skeleton. Something like x3d-tidy or tovrmlx3d might be used to "animate" the humanoid. That's up to those authors.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>So I think a bit about using XSLT and creating a TypeScript SAI. I would likely modify the X3DJSAIL XSLT that takes the X3DUOM and produces X3DJSAIL, Python doesn't have a way to import any encoding that I know of (no createX3D...). X3DJSAIL has X3DLoaderDOM.java, which will allow me to import JSON as DOM which lets me use X3DJSONLD (I hope this works, otherwise I'll be riding the XML bandwagon!). C/C++/C# SAI looks like an empty shell (I realize there may be some DLLs).<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I choose not to modify the X3DJSAIL codebase beyond the stylesheet. I'm not going there. But my changes might be backported to Java. I will attempt to use the SaxonJS product, if it is good enough, to be able to use x3dTo...xslt in the program. X3DJSAIL offers everything that I know I need except for applying transforms to centers.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I chose TypeScript over JavaScript/ECMAScript because I feel the former is closer to Java than the latter two.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>No, I'm not going to read the SAI standard. I have to learn TypeScript.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>If anyone knows a way to easily design XSLT (Something like XSLbyDemo), let me know...XMLSpy?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>John<o:p></o:p></p></div></div></div></div></body></html>