[x3d-public] X3D4 updates: MultiTexture validation, X3DUOM, Java, Python, Turtle

[John Carlson]

Note re:warnings is that my stylesheet contains more “stuff” related to
LoadSensor children—will try to get that info to you soon.

On Mon, Sep 27, 2021 at 7:12 PM John Carlson <yottzumm at gmail.com> wrote:

> Thanks, Don!
>
> I’m hoping I can adjust the synonyms in ComposedCubeMapTexture soon,
> adopting something that will interoperate across the entire tool chain for
> X3D4.
>
> Probably more results will appear out of my personal portfolio soon, as I
> continue to improve it.
>
>  Note that I believe I have surprising results for writing out
> intermediate results from X3DJSONLD.java instead of passing DOM directly to
> X3DLoaderDOM.java.  All warnings, etc disappear!
>
> It may be worth comparing DOM trees in that case.
>
> At some point, I hope to transfer my X3D JSON Schemas back to sourceforge.
>   Konstantin, note that there is a python JSON validator under X3DJSONLD,
> so you have many choices for validation of JSON files.   I primarily use a
> modified Ajv output for debugging.
>
> On Mon, Sep 27, 2021 at 4:09 PM Brutzman, Donald (Don) (CIV) <
> brutzman at nps.edu> wrote:
>
>> Extensible 3D (X3D) Graphics is the royalty-free open standard for
>> publishing, viewing, printing and archiving interactive 3D models on the
>> Web.
>>
>>
>>
>> Here are recent updates.  Had some good refinements related to
>> MultiTexture, now rippled out through all of the open-source autogenerated
>> software builds.
>>
>>
>>
>>    1. X3D XML Schema update activity, addressing some scene validation
>>    issues:
>>
>> https://www.web3d.org/specifications/x3d-schema-changelog.txt
>>
>>
>>
>> 25 SEP 2021, brutzman
>>
>> - (v3.1-v4.0) MultiTexture texture field has type X3DSingleTextureNode
>> and can include
>>
>>   ComposedCubeMapTexture, GeneratedCubeMapTexture, ImageCubeMapTexture,
>>
>>   ComposedTexture3D, ImageTexture3D, PixelTexture3D
>>
>> - (v3.1-v4.0) MultiTextureCoordinate is part of
>> ComposedGeometryContentModel
>>
>> - (v4.0) allow X3DComposedGeometryNode texCoord field to include
>>
>>   X3DSingleTextureCoordinateNode|MultiTextureCoordinate
>>
>> - (v4.0) allow watchlist containerField for backwards compatibility of
>> X3D models in
>>
>>   containerFieldChoicesAudioClip
>>
>>
>>
>> Corresponding changes added to X3D XML DOCTYPE as appropriate.  All
>> details found at
>>
>>
>>
>>    - X3D Specifications: Schema and DOCTYPE Validation
>>    - https://www.web3d.org/specifications
>>
>>
>>
>>    1. X3D XML Schema changes are applied to the X3DUOM, which then in
>>    turn is applied via XSLT conversion stylesheets to create multiple coding
>>    projects.
>>
>>
>>
>>    - X3D Unified Object Model (X3DUOM)
>>    - https://www.web3d.org/specifications/X3DUOM.html
>>    - https://www.web3d.org/specifications/X3dUnifiedObjectModel-4.0.xml
>>
>>
>>
>> “The X3D Unified Object Model (X3DUOM) is a full set of object-oriented
>> interfaces for all nodes, fields and statements in the X3D Architecture
>> Specification.”
>>
>>
>>
>> Each of the following codebase updates passed respective sets of unit
>> tests and conversions using the test scenes (nearly 4000 total).
>>
>>
>>
>>    - X3D Resources, Examples: Scene Archives for X3D
>>    -
>>    https://www.web3d.org/x3d/content/examples/X3dResources.html#Examples
>>
>>
>>
>>    1. JAVA X3DJSAIL API
>>
>>
>>
>>    - X3D Java Scene Access Interface Library (X3DJSAIL)
>>    - http://www.web3d.org/specifications/java/X3DJSAIL.html
>>
>>
>>
>> “X3D Java Scene Access Interface Library (X3DJSAIL) supports programmers
>> with standards-based X3D Java interfaces and objects, all as open source.”
>>
>>
>>
>>    1. Python X3DPSAIL API
>>
>>
>>
>>    - X3D Python Scene Access Interface Library (X3DPSAIL)
>>    - https://www.web3d.org/x3d/stylesheets/python/python.html
>>
>>
>>
>>    - Python x3d.py package
>>    - https://pypi.org/project/x3d
>>
>>
>>
>> “The x3d.py Python X3D Package supports programmers with Python
>> interfaces and objects for standards-based X3D programming, all as open
>> source.”
>>
>>
>>
>> Design Features
>>
>>
>>
>>    - The current implementation strives to follow first principles of
>>    python package design, being as "pythonic" as possible. Creating a
>>    native-Python implementation for X3D data structures appears to provide the
>>    greatest possible portability.
>>    - Python is exceedingly rigorous regarding design and implementation,
>>    demands crisp readability, and often leads to a single best approach for
>>    each programming task. These are valuable features that lead to ease of
>>    programming and greatly reduced debugging. A single well-constructed
>>    open-source Python X3D implementation has the potential to serve all Python
>>    distributions and programmers well.
>>
>>
>>
>>    1. X3D Ontology
>>
>>
>>
>>    - X3D Ontology for Semantic Web
>>    - https://www.web3d.org/x3d/content/semantics
>>
>>
>>
>> “The X3D Ontology for Semantic Web provides terms of reference for
>> semantic query of X3D models.”
>>
>>
>>
>> Steady work continues.  All feedback welcome.  Have fun with X3D4!   8)
>>
>>
>>
>> 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
>>
>>
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>>
>
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