In the two branches of the autonomic nervous system, how many types of effectors are targeted to accomplish the antagonistic effects on the GI tract

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it

Dnaa living organsimcreation from organic chemicals