RouteDirectionOptions.RouteDirectionParameters Property

Used for reconstructing a route and for calculating zero or more alternative routes to this reference route. The provided sequence of coordinates is used as input for route reconstruction. The alternative routes are calculated between the origin and destination points specified in the base path parameter locations. If both minDeviationDistance and minDeviationTime are set to zero, then these origin and destination points are expected to be at (or very near) the beginning and end of the reference route, respectively. Intermediate locations (waypoints) are not supported when using supportingPoints. Setting at least one of minDeviationDistance or minDeviationTime to a value greater than zero has the following consequences:

• The origin point of the calculateRoute request must be on (or very near) the input reference route. If this is not the case, an error is returned. However, the origin point does not need to be at the beginning of the input reference route (it can be thought of as the current vehicle position on the reference route).
• The reference route, returned as the first route in the calculateRoute response, will start at the origin point specified in the calculateRoute request. The initial part of the input reference route up until the origin point will be excluded from the response.
• The values of minDeviationDistance and minDeviationTime determine how far alternative routes will be guaranteed to follow the reference route from the origin point onwards.
• The route must use departAt.
• The vehicleHeading is ignored.