plotting a route on Google Maps

Question

How would I use Google Maps API to plot a route? E.g to have a bunch of way points loaded onto the map (I currently have this) and draw a line from each of them showing the

Answer 1

I've done this on Android. Google has a service for this here is the link https://developers.google.com/maps/documentation/roads/intro

You'll find an example API call on this page here. Plus some web instructions. https://developers.google.com/maps/documentation/roads/snap

This is an example web call to the service. https://roads.googleapis.com/v1/snapToRoads?path=-35.27801,149.12958|-35.28032,149.12907|-35.28099,149.12929|-35.28144,149.12984|-35.28194,149.13003|-35.28282,149.12956|-35.28302,149.12881|-35.28473,149.12836&interpolate=true&key=YOUR_API_KEY

If memory serves, I believe you can have up to 100 points per call and you get charged by each call regardless of the amount of points.

This above call can also be configured to snap to roads.

As far as drawing the routs when the map loads, this depends on what technologies you are using. I know that it's easy to in .NET WinForms

If you post a comment on your question; letting me know what technologies you are using I may be able to give you some further advice.

If you want to test your routes for free, I found a nifty little web site: https://www.darrinward.com/lat-long/

Hope this helps.