You can get the waypoints either by storing them when you requested the
directions or by taking the first vertex of the GDirections.getPolyline
and scanning through the GRoutes.getEndLatLng elements.
You can get the points where the driving instructions change by scanning
through the gStep.getLatLng elements.
You can get all the points where the path changes from a straight line
by scanning through the vertices of the GDirections.getPolyline.
--
Mike Williams
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