Since world.add_molecules() often receives a Species that only has its
serial, some indispensable parameters such taht radius and D might
be missing. To avoid this inconvenience, it is needed to search species
in the model that is bound to the world.
Since world.add_molecules() often receives a Species that only has its serial, some indispensable parameters such taht
radius
andD
might be missing. To avoid this inconvenience, it is needed to search species in the model that is bound to the world.