In some cases (e.g. for medical applications) we might only want one kind of tissue per cell. It would be inefficient to have one density grid per tissue type, so instead we could create an abstract interface to the density array (and other arrays) and store this more efficiently.
In some cases (e.g. for medical applications) we might only want one kind of tissue per cell. It would be inefficient to have one density grid per tissue type, so instead we could create an abstract interface to the density array (and other arrays) and store this more efficiently.