[x3d-public] ProtoInstance USE without name

[John Carlson]

I have ported may Library instances to JSON.


On Sun, Nov 22, 2020 at 7:48 PM Andreas Plesch <andreasplesch at gmail.com>
wrote:

> https://github.com/create3000/Library/search?p=3&q=ProtoInstance+USE%3D
>
> is a search for USE ProtoInstances in the Library (although github search
> is very limited).
>
> Most USE ProtoInstances do not have a name attribute in the Library but a
> few do:
>
>
> https://github.com/create3000/Library/blob/11f7f4ad710f2fd9ab88c82a0ea39cb1afe67686/Tests/Components/ParticleSystems/BoundedPhysicsModel.x3d#L121
>
> Perhaps sometimes it is somehow required to actually add the name ?
>
> -Andreas
>
> On Sun, Nov 22, 2020 at 8:36 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> I don't have any .x3d HTML examples for Holger's library. I can provide
>> json examples, if needed.  I
>>
>> If you've got X3DJSONLD installed, running x_ite.sh in
>> X3DJSONLD/src/main/shell should look in ../Library (Holger's library copy)
>> and produce a plethora of .json files. I would uncomment the commented out
>> "exit" in several.sh to stop running all the example code generated.
>>
>> But it may be easier to provide you with my copy of Holger's Library.
>>
>> Thanks!
>>
>> John
>>
>> On Sun, Nov 22, 2020 at 7:25 PM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> Holger's Library probably still has ProtoInstance's with USE without a
>>> name.  You'll probably want to check if they work in X3DOM.
>>>
>>>
>>> On Sun, Nov 22, 2020 at 6:46 PM Andreas Plesch <andreasplesch at gmail.com>
>>> wrote:
>>>
>>>> Yes. I was saying these are the only Proto examples I came across which
>>>> do have USE without a name. To me it would be clearer and more similar to
>>>> regular nodes if name would be always added, perhaps even required (even
>>>> though not strictly necessary).
>>>>
>>>> Andreas
>>>>
>>>> On Sun, Nov 22, 2020 at 6:21 PM John Carlson <yottzumm at gmail.com>
>>>> wrote:
>>>>
>>>>> I'm not finding any name's and USE's together in ProtoInstance node in
>>>>> the LOA*.x3d examples from the HAnim 2 part 1 spec.
>>>>>
>>>>> grep ProtoInstance LOA*x3d|grep USE|grep name
>>>>>
>>>>> John
>>>>>
>>>>> On Sun, Nov 22, 2020 at 5:02 PM Andreas Plesch <
>>>>> andreasplesch at gmail.com> wrote:
>>>>>
>>>>>> Looking at why the old Prototypes for HAnim did not work properly for
>>>>>> x3dom, I found that the xml examples typically have a ProtoInstance
>>>>>> statement with a USE attribute but without the corresponding name attribute
>>>>>> defining the actual node type. However, x3dom expects a name attribute with
>>>>>> every ProtoInstance statement, even USE ones, to be able to insert the
>>>>>> appropriate node.
>>>>>>
>>>>>> The xml spec  at
>>>>>>
>>>>>>
>>>>>> https://www.web3d.org/documents/specifications/19776-1/V3.3/Part01/concepts.html#ProtoInstanceAndFieldValueStatement
>>>>>>
>>>>>> does not address USE of ProtoInstances but all examples always have a
>>>>>> name attribute.
>>>>>>
>>>>>> Also, in my quite extensive testing of Protos, I did not come across
>>>>>> other examples of ProtoInstance elements without a name attribute.
>>>>>>
>>>>>> To be fair, the name attribute is not strictly necessary for USE
>>>>>> ProtoInstances since the type of the inserted node can be determined from
>>>>>> the referenced DEF node. But having the name attribute makes ProtoInstance
>>>>>> elements more similar to regular nodes. So I think not requiring the name
>>>>>> attribute for USE ProtoInstances should be explicitly allowed in the xml
>>>>>> spec., but still be encouraged.
>>>>>>
>>>>>> I do not think the xml spec. would be otherwise affected by V.4 ?
>>>>>>
>>>>>> Best, Andreas
>>>>>>
>>>>>> --
>>>>>> Andreas Plesch
>>>>>> Waltham, MA 02453
>>>>>> _______________________________________________
>>>>>> x3d-public mailing list
>>>>>> x3d-public at web3d.org
>>>>>> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>>>>>>
>>>>>
>>>>
>>>> --
>>>> Andreas Plesch
>>>> Waltham, MA 02453
>>>>
>>>
>
> --
> Andreas Plesch
> Waltham, MA 02453
>
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