As simulations become more complex, setting up the path integrals for each port will become tedious! We should implement a method that automatically creates path integrals from very simple user input. For example, defining a port should only require the user to specify a port plane along with the structures representing the positive terminal and the negative terminal (ground reference). Then, using the geometry of the chosen structures we should be able to automatically define both integrals needed for computing voltage and current.