This function retrieves the reaction force at a pipe-in-pipe connection in a particular degree of freedom, at a particular time step.
GetPIPReaction (string DatabaseName, int TimeIndex, PIPConnectionNo, int DOFNo)
DatabaseName (character string). The full path name to the relevant database.
TimeIndex (integer). The relevant time index.
PIPConnectionNo (integer). The guide index number from 1 to number of pipe-in-pipe connections in the database.
DOFNo (integer). The Degree of Freedom (1 to 3).
-9999998 (if the specified database is invalid)
-9999999 (if the requested value cannot be retrieved from the database)