Route Planning & Navigation
How to measure straight-line distances with CoMaps? Is there a ruler?
Android
iPhone & iPad
To measure the straight-line distance from your current position to some object, select that object on the map, tap the "Route to" button and select Ruler route type:
With ruler option enabled, tap anywhere on the map to define a polyline with the different reference points:

You can choose any start point using the "Route from" button.