Document the use of Forge metadata

[petrbroz]

Explain how the gltf elements can be linked to the original model metadata in Forge, e.g.:

• using https://forge.autodesk.com/en/docs/model-derivative/v2/reference/http/urn-metadata-guid-properties-GET
• by downloading the property db in sqlite: https://github.com/petrbroz/forge-convert-utils/blob/develop/bin/forge-convert.js#L85
• by parsing the property db in object*.json.gz files: https://github.com/petrbroz/forge-convert-utils/blob/develop/test/remote-svf-props.js#L21-L22

[petrbroz]

Addressing https://twitter.com/FlorolF_/status/1226769610504130560

[wallabyway]

Use this 'Magic SQL' select statement when querying the sqlite db file... https://github.com/wallabyway/propertyServer/blob/master/pipeline.md

in the 'WHERE' clause of your SQL statement, match the DBID of the glTF file node.name == SQL:: ids.external_id

Alternatively, you can do the same thing, but with those five JSON files... (but it's a little bit harder)... (see the last diagram in the link).

[florolf1]

Thanks, i will give it a try!