Hi there, i'm trying to desing a new application which allow user see he/her current location on a custom map (office, university compus, etc). but actually i have a couple of question in my mind (i haven't designed this kind of application before). i'm wondering:

• How can i draw my own maps, what is the best option for it? there any format that i have to care of, there are any specification about it ?
• Once i have my custom map. how can i do to mapping a global position system with the local positions ?
• What are the tricks behing zoom on maps ? just differents layers with more or less informations and those layers changes on users demand ?
• If a whant to mark some specific points over the map, like a cafeteria, boss's office etc, how can i do that ?

Sorry if my questions are too much generics and dumb, but i really need some clues about this topic because i don't have any idea how to design this kind of application as best as possible. and we don't whant to reinvent the wheel.

I will appreciate any help that you can provide me in order to desing this application