Has anybody played much with the Maps and MapPolyline? What are the limits for number of points? How does performance degrade as the number goes up? I don't have an actual device to test on.
Prior to CIQ 3.0, I have an app that draws it's own bread crumb map and I'd limit the number of points to 400. I'd add one every time I traveled more than 5 yards. Once it filled up, I'd remove every other point and then double the minimum distance to add points. This kept a reasonable number.
So is there a reasonable limit for the MapPolyline? If you keep adding points, does it do any of its own trimming? There is no way to modify MapPolyline other than add points. So to do my own trimming, I need to keep a separate array of the points, do the trimming there, and then re-build a new MapPolyline from scratch.
There is MapPolyline.clear in the specs but in the simulator at least, I get symbol not found errors.
