I have not found an example of what I am trying to do anywhere on the web yet and would like to get some general feedback on how feasible it will be to do with google maps. I want to show a map of the US with all of the states individually colored as their own polygons. Then when a state polygon is clicked, zoom in to show that state and then all of the 3 digit zipcodes in the state are their own polygons. Then click a 3 digit zip polygon and it zooms in and shows the 5 digit zipcodes. At the 5 digit zipcode level I don't need them to be clickable polygons. Also, at each level I want to be able to display a count of how many points I have in each polygon. The point count I can calculate seperately and just feed google a number to display in the center of the polygon. If I need to I can remove some of the vertices from the polygons for performance reasons. The polygons do not need to be exact, just close. Is an image overlay of some type better for this, and if so, how would I control the bounds when zooming in without using the vertices of the polygon as the bounds. Thanks for any feedback and direction you can provide me.
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