5.31.4. Target - PIDs

NumTargetPIDs = INT Define the number of parts in the target mesh which are considered within the mapping. This option should be followed by the TargetPID#i definitions.
TargetPID#i = INT Define as many part IDs as given in NumTargetPIDs. These parts are considered for the mapping.

Note:  The options above specifically narrow down the scope of the mapping procedure to defined-part IDs. Other parts are ignored on both the source and target meshes.