Difference between revisions of "X3D JSON Encoding"

Revision as of 14:02, 21 August 2014

Preliminary notes on the creation of an X3D JSON encoding.

This page is to understand the conversion process so that a high-quality encoding definition can be created
Don Brutzman started a thread on the X3D-Public list.
- Initial message [1]
- July's thread listing [2]

Design criterion: round-trippable lossless representation of X3D scene.

How to convert attribute names to distinguish them from child elements
Handling of container elements
Creation of JSON elements with datatypes appropriate to content (e.g., integer, float, strings, etc.)
Inclusion of XML namespaces
Handing of comments in the source
1. {LD} I don't see an issue of dropping comments during conversion. This is not suppose to be a conversion of files to maintain an archive, but a conversion for use. JSON does provide comment mechanisms.
Don reported that self-closing tags are missing from his test runs

XML to JSON Converter (provides option to assign a prefix to JSON attributes, default is @ character) [3]
Apache Camel, XML JSON Data Format (camel-xmljson) [4]
JSON Markup Language (JsonML) [5]
XSLTJSON: Transforming XML to JSON using XSLT [6]
Converting Between XML and JSON [7]
XML/JSON Perl Converter [8]
IBM's PHP converter [9]
Java Converter [10]
Google Code Library [11]

@@ Line 5: / Line 5: @@
 ** July's thread listing [http://web3d.org/pipermail/x3d-public_web3d.org/2014-July/thread.html]
 == Conversion Issues ==
+Design criterion:  round-trippable lossless representation of X3D scene.
 # How to convert attribute names to distinguish them from child elements
 # Handling of container elements