GDirections will snap to the nearest point on a drivable road as long as that road point is within 5 kilometres. Since pedestrian zones are typically less than 5km across, expect GDirections to succeed.
See: http://econym.org.uk/gmap/example_snap.htm So you'll always have to check the distance from your point to the point returned by GDirections, and have a cutoff where you choose to consider the point not accessible by car. Even then it's not foolproof. On that example map, the roads through the caravan park just to the east of the smaller roundabout are actually accessible by car, but they're not included in the GDirections database. Similarly, you can get false results if the point is only a few metres from a road but there's some sort of impenetrable barrier in the way. -- Mike Williams http://econym.org.uk/gmap -- 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.
