[x3d-public] Turning on and off simultaneous animations individually

[John Carlson]

I have no problems with your thinking Andreas.  My only questions are 1)
Why am I chosen to find these corner cases? 2)  Can Castle Model Viewer
support ECMAScript soon, perhaps in an Electron or better WebView? 3) It
would seem like ProtoInterface field accessType="outputOnly" needs to be
treated specially.

Primarily, I am concerned that A) alone will not solve 3) above and B) may
be required.  Castle Model Viewer already has A), which is helpful, but I
don't have a workaround yet.

On Sun, Feb 2, 2025 at 10:40 PM Andreas Plesch <andreasplesch at gmail.com>
wrote:

> Apologies in advance if the following comes across as a bit of
> rigid thinking for a corner case but unfortunately there is now an example.
> A larger standard question is how to correctly process a fieldValue
> statement with a default value for the value attribute.
> The XML schema for fieldValue says that the default value for the value
> attribute is "", the empty string. Relying on that default is rarely,
> perhaps never, a useful use of fieldValue but is allowed.
>
> Scenario A)
> In the case the field for which such a fieldValue is given is of type
> SFTime, this would strictly mean that the value is invalid since the "" is
> not an encoding of a floating point number and does not pass the regex
> test. Therefore processing could become undefined and should be halted.
>
> Scenario B)
> Another, perhaps less strict but more useful interpretation is that the
> empty string for SFTime signals the lack of a value and that therefore a
> default value for the SFTime field should be adopted. This default could be
> an initial -1 as the Tooltips suggest, and would likely be overwritten.
>
> A) is stricter and follows the rules more literally. B) is perhaps
> more often what authors intend but may need some clarification in the
> specification.
>
> This applies only to the XML encoding.
>
> I think the XML encoding for fieldValue should require one of: an existing
> value attribute, or at least one child node (as a XFNode value). Not sure
> if the XML schema could handle that.
>
> Would you prefer A) or B) ?
>
> Personally A) with some error messages but some X3D browsers accept B).
>
> Thanks, Andreas
>
>
> On Sun, Feb 2, 2025 at 4:58 PM Andreas Plesch <andreasplesch at gmail.com>
> wrote:
>
>> I think x3dom, reasonably, expects a value for the fieldValue nodes:
>>
>> For example:
>>
>> <fieldValue name="startTime" />
>>
>> and others.
>>
>> On Sun, Feb 2, 2025 at 5:42 AM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> Andreas, Joe,
>>>
>>> Reset Button, Reset_Clock added.
>>>
>>> See attached zip for details, or visit link;
>>>
>>>
>>> https://create3000.github.io/x_ite/playground/?url=https://raw.githubusercontent.com/coderextreme/ci2had/refs/heads/main/resources/CleanedYouClocks.x3d
>>>
>>> For some reason, this link doesn't show the live scene?
>>>
>>>
>>> https://andreasplesch.github.io/Library/Viewer/index.html?url=https://raw.githubusercontent.com/coderextreme/ci2had/refs/heads/main/resources/CleanedYouClocks.x3d
>>>
>>> Puzzled, haven't researched it yet.  Looks good in Sunrize and X_ITE,
>>> will try FreeWRL next.
>>>
>>> John
>>>
>>>>
>>
>> --
>> Andreas Plesch
>> Waltham, MA 02453
>>
>
>
> --
> Andreas Plesch
> Waltham, MA 02453
>
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