Cross-domain dynamc script tags that fetch a JSON response work well and fast.
I use them to colour route segments ( > 50m) on http://wheresthepath.googlepages.com/wheresthepath.htm. The gradients come from my own Google App Engine gradient server (UK only). To draw a route, press the Route button and click a route on either map. As each segment is drawn (or moved), a dynamic script tag is used to fetch the gradient of the segment. I use a globally unique ID (GUID) in each segment's request. When the JSON data arrives, I simply match the returned GUID to find the correct segment to re-colour. If the fetch fails, the segment stays magenta, otherwise, up hill is coded lime, yellow, orange, red (steepest) and down hill green/blue through to blue (steepest). --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
