[x3d-public] [x3dom-users] Nodes for V4

[Leonard Daly]

See below...
> On Mon, Aug 29, 2016 at 12:32 AM, Leonard Daly <web3d at realism.com 
> <mailto:web3d at realism.com>> wrote:
>
>     On 8/26/2016 7:39 PM, Leonard Daly wrote:
>>>     For the last year I have been working on advancing X3D to be
>>>     standardized in HTML5/DOM environment and support mobile and VR.
>>>     I have just completed alpha work on the Macro node. This node
>>>     provides the static definition capabilities of PROTO in an HTML5
>>>     environment. It can perform string substitution (name/value
>>>     pairs) on X3D code stored externally. The node documentation is
>>>     at
>>>     http://tools.realism.com/specification/x3d-v40/abstract-specification/changes-additions-x3d-v33/macro
>>>     <http://tools.realism.com/specification/x3d-v40/abstract-specification/changes-additions-x3d-v33/macro>.
>>>
>>>     I will continue to get to at least alpha stage (basic functional
>>>     implemented and working) for all nodes I discussed during my
>>>     presentations at Web3D2016 & SIGGRAPH. The presentation is
>>>     online at
>>>     http://realism.com/presentations/188?title=Extending-X3DOM-to-Mobile
>>>     <http://realism.com/presentations/188?title=Extending-X3DOM-to-Mobile>.
>>>
>>>
>>>     All of the code is up on Github at
>>>     https://github.com/DrX3D/x3dv4 with testing code.
>>>
>>>     I am interested in any bugs that are found or new/revised
>>>     direction for the nodes. I am completely open to anyone who
>>>     would like to help code.
>
> I understand how the external reference to a macro template works 
> since for each instance of the macro it is possible to reference the 
> same url, and therefore template. How do you envision, on the other 
> hand, use of the nodes field as the other option where the template is 
> provided as child nodes ? Repeating the template for each instance 
> would not make a lot of sense. Is there something you had in mind ?

I was thinking DEF/USE. USE works in X3DOM by referencing the node 
sub-tree defined by DEF. Something like:

<Macro params='"n1=v1","n2=v2"'>
     <nodes DEF='Macro1Nodes'>
         <transform ...>
                 ...
         </transform>
     </nodes>
</Macro>
     :
     :
<Macro params='"n1=va","n2=vb"'>
     <nodes USE='Macro1Nodes'></nodes>
</Macro>



-- 
*Leonard Daly*
X3D Co-Chair
Cloud Consultant
President, Daly Realism - /Creating the Future/
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