title: How to use Googlemaps and apply a Dijkstra algorithm but I don't know how to assign the vertices?
body: <p>I'm using Xamarin (C#) to create a food delivery app, and I finished the other modules but I'm not sure how to proceed with applying a shortest route algorithm.</p>
  <p>Do I manually identify the markers and pre-set them in the app after downloading the json file?</p>
  <p>I can use the services to get my location and the destination, so I know my starting and end points.</p>
  <p>I'm basically trying to replicate google's own map routing but less efficiently. I also want to avoid going off road too.</p>
  <p>I am at a loss on how to proceed. Can anyone please give me an idea?</p>
  <p>Thank you.</p>