Identifying Elements

Reading and writing KML elements requires that each element is uniquely identified. This unique identity is used by KML to cross-reference related elements. In addition FME uses the individual element ids to resolve/build a KML hierarchy from FME features.

FME uses the kml_id format attribute to uniquely identify each feature that corresponds to a KML element. FME will generate a unique id if one does not already exist.

If the feature has an update mode specified, but lacks a kml_id, a fatal error will occur.