[x3d-public] Proto semantics in abstract spec.

Andreas Plesch andreasplesch at gmail.com
Thu Jul 27 14:18:59 PDT 2017


Ok, should be submitted now. -Andreas

On Thu, Jul 27, 2017 at 4:44 PM, Roy Walmsley <roy.walmsley at ntlworld.com>
wrote:

> Andreas,
>
>
>
> Great observation.
>
>
>
> Would you be kind enough, please, to submit this as a formal specification
> comment?
>
>
>
> Thanks in advance,
>
>
>
> Roy
>
>
>
> *From:* x3d-public [mailto:x3d-public-bounces at web3d.org] *On Behalf Of *Andreas
> Plesch
> *Sent:* 27 July 2017 21:29
> *To:* X3D Graphics public mailing list <x3d-public at web3d.org>
> *Subject:* [x3d-public] Proto semantics in abstract spec.
>
>
>
> http://www.web3d.org/documents/specifications/
> 19775-1/V3.3/Part01/concepts.html#PROTOinterfacedeclsemantics
>
>
>
> has this language in section 4.4.4.2:
>
>
>
> "
>
> Each prototype instance can be considered to be a complete copy of the
> prototype, with its own field values and copy of the prototype definition.
> A prototyped node type is instantiated using standard node syntax. For
> example, the following ...
>
> "
>
> followed by an example in VRML encoding.
>
>
>
> "standard node syntax" is only really applicable if the VRML encoding is
> used. The XML and JSON encoding use special ProtoInstance syntax instead
> and "standard syntax" becomes misleading.
>
>
>
> A proposal would be
>
>
>
> "A prototyped node type is instantiated using keywords or standard node
> syntax. Adopting VRML encoding, the following ...
>
> "
>
>
>
> There may be a more concise way of clarifying as well.
>
>
> --
>
> Andreas Plesch
> 39 Barbara Rd.
> Waltham, MA 02453
>



-- 
Andreas Plesch
39 Barbara Rd.
Waltham, MA 02453
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