[x3d-public] More than one DEF with same value

[Leonard Daly]

John,

DEFs names within a context need to be unique (see 
https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/concepts.html#DEFL_USESemantics). 
The same DEF value may appear multiple times in a single XML file as 
long as each occurrence is in a different context. See link for a 
description of different contexts.


> Here’s my understanding of DEFed nodes.   DEF creates one more parent 
> node similar to USE, but another DEF with same value allows update or 
> addition of fields of the multiply mentioned node, where USE does not.
>
> DEF nodes with the same DEF value may appear more than once in XML.
>
> Okay?

-- 
*Leonard Daly*
3D Systems & Cloud Consultant
LA ACM SIGGRAPH Past Chair
President, Daly Realism - /Creating the Future/
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