FUNCTION get_tj
(input : SET [0:?] OF Physical_connectivity_element) : SET [0:?] OF Topological_junction;
LOCAL
tj : SET OF Topological_junction := [];
i : INTEGER := 0;
END_LOCAL;
REPEAT i := 1 TO SIZEOF(input) BY 1;
IF ('PHYSICAL_CONNECTIVITY_DEFINITION_ARM.TOPOLOGICAL_JUNCTION' IN TYPEOF(input[i].start_terminus)) THEN
tj := tj + input[i].start_terminus;
END_IF;
IF ('PHYSICAL_CONNECTIVITY_DEFINITION_ARM.TOPOLOGICAL_JUNCTION' IN TYPEOF(input[i].end_terminus)) THEN
tj := tj + input[i].end_terminus;
END_IF;
END_REPEAT;
RETURN(tj); END_FUNCTION; -- get_tj
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