[x3d-public] ProtoInstance USE without name

[John Carlson]

I have ported many Library instances to X3DOM:

https://coderextreme.net/X3DJSONLD/src/main/html/x3domexamples.html
https://coderextreme.net/X3DJSONLD/src/main/html/x3domexamples2.html

Would be lovely if they all started magically working!  Approach would be
very cool in x3dom, if it's possible!

John

On Sun, Nov 22, 2020 at 7:51 PM John Carlson <yottzumm at gmail.com> wrote:

> 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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