pm4py.objects.ocpn.utils.ocpn_utils module#

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pm4py.objects.ocpn.utils.ocpn_utils.pre_set(elem, object_type: str = None) → Set[source]#

Returns the set of predecessors of an element (place or transition) in an object-centric Petri net. Restricted to predecessors connected using arcs of the object type, if specified.

Parameters:

  • elem – Element (place or transition) for which to get the predecessors

  • object_type – Object type to restrict the predecessors to (optional)

Returns:

Set of predecessor elements (places or transitions) of the specified object type.

Return type:

Set

pm4py.objects.ocpn.utils.ocpn_utils.post_set(elem, object_type: str = None) → Set[source]#

Returns the set of successors of an element (place or transition) in an object-centric Petri net. Restricted to successors connected using arcs of the object type, if specified.

Parameters:

  • elem – Element (place or transition) for which to get the successors

  • object_type – Object type to restrict the successors to (optional)

Returns:

Set of successor elements (places or transitions) of the specified object type.

Return type:

Set