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autodesk-forgeautodesk-bim360

Autodesk forge viewer, model properties and model coordination ID relationships

It is not clear for me the relationship between the identifiers used in the Model Coordination API and the ones used in the Model Properties API:

  • loid: (Model coordination API)
  • lvid: (model coordination API)
  • svf2Id:(Model properties API)
  • databaseId: (Model properties API)

let's say I have some objects with specific propery values and I have found those object by means of the Model properties API. Then I have some clashes and I would like to know if any of the elements involved in the clashes belongs to the previous group of elements. Is there any relationship between the loid and the svf2Id for example? how could I achieve this task? Thanks in advance

Solution

  • Here is the difference between the ids you are asking:

    • The loid of Model coordination API is the stable object id, but it's just for our service use internally. It's nothing related to what you want, unfortunately. (Same as roid)
    • The lvid of model coordination API) is the object dbId in SVF format, which matches with the lmvId in Model Properties query results within the exact same model file version in Document Management, so the same version which clashed must be the one which is queried via the Model Properties API.
    • The lmvId of of Model properties API is dbId for this object in the SVF format.
    • The svf2Id of Model properties API is dbId for this object in the Forge viewer when loading the model in SVF2 format and when you translated the model to SVF2 format.
    • The databaseId of Model properties API is the index manifest key for the PDB resource that contains this row for Model properties API.

    Therefore, you must use the lvid and rvid, which match with the lmvId in Model Properties query results.