Filter

This method copies the obsels of the source trace if they pass the filter.

sources:

1

parameters:

model:the model of the computed trace origin:the origin of the computed trace after:the integer timestamp below which obsels are filtered out before:the integer timestamp above which obsels are filtered out afterDT:the datetime timestamp below which obsels are filtered out beforeDT:the datetime timestamp above which obsels are filtered out otypes:space-separated list of obsel type URIs; only obsels of these types (or their subtypes) will be kept bgp:a SPARQL Basic Graph Pattern used to express additional criteria (see below)

extensible:

no

If parameter model (resp. origin) is not provided, the model (resp. origin) of the source trace will be used instead.

All filtering parameters are optional. If not specified, they will not constrain the obsels at all. For example, if otypes is not provided, obsels will be kepts regardless of their type; on the other hand, if otypes is provided, only obsels with their type in the list will be kept.

Datetime timestamps can only be used if the source origin is itself a datetime. If a temporal boundary is given both as an integer and a datetime timestamp, the datetime will be ignored. Note that temporal boundaries are inclusive, but obsels must be entirely contained in them.

The bgp parameter accepts any SPARQL BGP (i.e. triple patterns, FILTER clauses) used to add further criteria to the obsels to keep in the computed trace. The SPARQL variables ?obs, ?b and ?e are bound respectively to the obsel, its begin timestamp and its end timestamp. The prefix m: is bound to the source trace model URI.