If a user annotates a codeword using an OPB:Force property such as voltage or pressure, then the user should also be able to indicate the thermodynamic source and sink responsible for the force.
Maybe use this kind of structure:
OPB:Force
Source entity ----- relative to Force in -------> Sink entity
If nothing entered for sink, assume ground.
If a user annotates a codeword using an OPB:Force property such as voltage or pressure, then the user should also be able to indicate the thermodynamic source and sink responsible for the force.
Maybe use this kind of structure:
OPB:Force