IFCSPACE elements are not classified properly in spatial relations (storeys)

[maidi29]

IFCSPACE elements are not classified properly in spatial relations (storeys)

[maidi29]

I realized that the spaces are not in relation IFCRELCONTAINEDINSPATIALSTRUCTURE but IFCRELAGGREGATES. So to get all elements including spaces I needed to to the following:

await classifier.byIfcRel(
      model,
      [WEBIFC.IFCRELCONTAINEDINSPATIALSTRUCTURE, WEBIFC.IFCRELAGGREGATES],
      'storeys',
    );
    
    async byIfcRel(group: FRAGS.FragmentsGroup, ifcRels: number[], systemName: string) {
    if (ifcRels.some((rel) => !IfcPropertiesUtils.isRel(rel))) return;
    ifcRels.forEach(async (rel) => {
      await IfcPropertiesUtils.getRelationMap(group, rel, async (relatingID, relatedIDs) => {
        const { name: relatingName } = await IfcPropertiesUtils.getEntityName(group, relatingID);
        for (const expressID of relatedIDs) {
          this.saveItem(group, systemName, relatingName ?? 'NO REL NAME', expressID);
        }
      });
    });
  }

[HoyosJuan]

Hey @maidi29!

Just use Classifier.spatialStructure which takes care of that. It uses the IfcRelationsIndexer under the hood.

[maidi29]

Just use Classifier.spatialStructure which takes care of that. It uses the IfcRelationsIndexer under the hood.

Thanks for your reply @HoyosJuan.
This did not work for me as the spaces are not in spatial relation but in IFCRELAGGREGATES. I don't know if this is a standard or just the case for the ifc models that I used so far but I came up with the above solution to add them to the storeys and closed the issue 👍