I currently have a database (Mongo, atm) holding roughly 1M points of data corresponding lat/lon/intensity values that I'd like to plot over a region using the Google Maps API.
Ideally, I'd like to have full control over the representation of the points, as the intent is to allow the end-user to control color/opacity/shape through a series of controls. I also need the ability to specify a color range which maps back to the intensity of a given point.
That said, I've investigated using Google Fusion Tables, but for a heavily customized app I found that display styles limiting. I've also looked a bit into marker clustering, as well as a number of external plugins, but none seem to provide the option to generate the marker type dynamically.
Any help/advice/direction is greatly appreciated.