[x3d-public] Addition to X3DUOM. DSM/Model-based ordering
John Carlson
yottzumm at gmail.com
Sun Mar 31 13:02:07 PDT 2024
Here’s the page for JSON subschemas:
https://json-schema.org/understanding-json-schema/reference/combining
I will be adding “x-inOrder” subschema to our JSON meta schema vocabulary.
Typically subschemas contain subschemas and properties. The properties and
subschemas will appear sequentially in the JSON files.
Thanks for listening.
John
On Sun, Mar 31, 2024 at 2:29 PM John Carlson <yottzumm at gmail.com> wrote:
> My thought is to add a sequential subschema to JSON Schema to match the
> parallel subschemas, “oneOf”, “allOf”, …
>
> On Sun, Mar 31, 2024 at 12:03 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> In places where order IS important, inside head and X3D elements, the
>> JSON schema is silent. I will probably be using custom schema “stuff” from
>> X3DUOM in JSON schema to specify order, but it will be informative, not
>> binding. That is, you should implement it for interoperability.
>>
>> Collaboration on design is welcome.
>>
>> John
>>
>> On Sun, Mar 31, 2024 at 11:04 AM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> It looks like the *ContentModel tags manage order? and occurrence of
>>> subnodes. I did wonder what these were. I have not seriously looked at
>>> the X3DUOM xsd yet. Is there documentation elsewhere? I’l look at the XML
>>> encoding.
>>>
>>> Thanks,
>>>
>>> Joh
>>>
>>> On Sun, Mar 31, 2024 at 10:33 AM John Carlson <yottzumm at gmail.com>
>>> wrote:
>>>
>>>> I am wondering about ordering statements and nodes in X3DUOM (object
>>>> model). I am well aware of ordering in XML schema…and sorting in
>>>> stylesheets. This means we have to write ordering for each X3DUOM
>>>> processor. It might be easiest just to order stuff in X3DUOM, once. I am
>>>> thinking about ordering head statements, and head vs Scene. There are
>>>> perhaps, other places in X3D.
>>>>
>>>> Neither JSON schema nor my upcoming VRML grammar currently bother much
>>>> about ordering, and that concerns me. I feel like XSLT could provide a
>>>> better solution, but I’m starting to think about how to accomplish ordering
>>>> in VRML parsing, without information from X3DUOM.
>>>>
>>>> Thanks for listening,
>>>>
>>>> John
>>>>
>>>
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