If you are using Google Maps in your application, and want to plot some directions on the map, you won't get an accurate polyline which follows the road (especially for long distances).
The reason for this is that Google Maps will only send you an "overview_polyine" which is just a rough estimate of where the polyline should be on the map. This can lead to weird results, such as the polyline being completely off the road.
BVAccurateRoutePlot solves this by using Google's Snap-To-Road API, to correct the poyline.
Note: BVAccurateRoutePlot uses Apple's MapKit for calculating directions, as it is much faster than Google's.
Please don't forget to link the
<MapKit> framework to your project in Xcode!
Open the demo project, and copy the folder called BVAccurateRoutePlot to your own Xcode project. That's it! :)
//Initilaize the route plotter BVAccurateRoutePlot *routePlotter = [[BVAccurateRoutePlot alloc] init]; //Set up some properties routePlotter.strokeWidth = 6; routePlotter.strokeColor = [UIColor blueColor]; [routePlotter drawRouteOnMap:mapView withStartPoint:[tappedCoordinates objectAtIndex:0] endPoint:[tappedCoordinates objectAtIndex:1]];
Created by Balazs Vincze on 23/08/16. Copyright © 2016 Balazs Vincze. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL "BALAZS VINCZE" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.