[x3d-public] X3D Semantic Web minutes: DFDL

[Don Brutzman]

Thanks John.  DFDL is a separate future topic that eventually may help us map X3D Ontology to other 3D model formats.

* X3D Ontology: Design
   https://www.web3d.org/x3d/content/semantics/semantics.html#Design
   [...]
   "f. Define similar/corresponding triple constructs for different 3D formats, building upon Leslie's 3dmo.ttl exemplars.
    g. Investigate existing vocabularies and tools for visual 3D shape search including potential analysis and annotation of models.
    h. Use Apache Daffodil (DFDL) to actually parse and subsequently query those other formats coherently."

On 4/20/2020 1:07 PM, John Carlson wrote:
> I've been looking a bit at the DFDL schema.  It looks like you populate your XSD with annotations in a separate schema for each encoding you want to translate to and from.   So this involves creating lots of nearly identical schemas it seems, one for each format (to/from translation with XML).  So for example, one format might be FBX.  Then you have OBJ.  That means you need a schema for FBX and one for OBJ.
> 
> A better understanding of DFDL and its potential downsides and benefits would be appreciated before we jump into DFDL.  That is, maybe instead of having a bunch of schema definition in XSD, X3DUOM, Ontology, why don't we focus on creating the best converting (animation) supporting system on the planet for 3D data.
> 
> http://dsmforum.org/events/DSVL01/carlson.pdf (a previous envisioning of the system https://www.computer.org/csdl/proceedings-article/wvl/1988/00018019/12OmNBp52DA which provided various visual types of field data conversion as well as a AST (abstract syntax tree) for displaying fields to convert, and a previous one to that provided for bit manipulation).
> 
> I envision for one, additional desktop objects for matrix and vector manipulation for X3D, bit manipulation calculators, shape creation/3D editing, etc.
> 
> If you haven't seen the demos of Lively Web, check them out. https://lively-next.org/  It's based on Morphic.
> 
> Do you see where I'm going with conversions?
> 
> Also look up Model Transformation by Demonstration. https://yusun.io/papers/oopsla09-sun-ds.pdf
> 
> XSLbyDemo: https://ieeexplore.ieee.org/document/994471
> 
> So how can we build transformation and converters with an IDE? I don't want to use XSLT.   Can we generate the XSLT with demonstrational techniques.
> 
> I mean, this is X3D.  We should be doing data translation in a *3D* environment, perhaps?   Anyone?  Can we convert sign language <-> English?  Why isn't there a sign language on Google translate?
> 
> John


all the best, Don
-- 
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman