On May 1, 6:14 pm, Steve G <stevegel...@gmail.com> wrote: > Thanks... I guess the next question is what can be done without my own > traffic tiles?
Traffic tiles are really just polys with different colors representing different traffic conditions. If you have access to traffic delay information, you could build your own tiles fairly easily. You only care about major highways. In the U.S., you can build highway polys from the Census Department's TIGER database. You could also use Google's direction finder service. Purist will cry foul but a lot of developers have used the direction finder service for such purposes. You are only using it one time to build your polys. You could slice each highway into sections, perhaps between major intersections. You could build poly fragments with each color representing each traffic condition. You could assemble the poly fragments into a continuous poly with color changes for the different traffic conditions. It is essentially the same technique used in www.polyarc.us/poly to color the various U.S. states. For what it is worth, I have an experimental static map using Google's "mld" service to draw polys. Unfortunately, because it violates the TOS, I cannot publish it. I suppose SVG and/or CANVAS could be used but without an iPhone, I cannot test it. VML applys only to Internet Explorer, not to the iPhone. I suspect other vendors have traffic tiles compatable with Google's Mercator projection. If not, it might be a good business venture. In the U.S., the Weather Channel usually displays traffic conditions following their local weather report. It might be one place to look. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to Google-Maps-API@googlegroups.com To unsubscribe from this group, send email to google-maps-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
