I'd like to graphically indicate several status of large collections of lat/lng positions on a map. Once generated the status of each remains static (so no updates required). The idea was to use one icon per dimension (e.g. open/closed, happy hour etc.; a shadow icon is not that important) and to finally overlay them (using anchor points) resulting in exactly one marker object (for easier handling and performance reasons). Is this possible? Another option would be to have these icons created dynamically on the client (the Google charts API is not an option atm as there are basically just two icons from a set of pre-selected icons that can be combined) maybe by using some SVG. Any client side (GWT) libraries for that?
Thanks