Suggestion

Add a section to the README about how to test this component.

Motivation

I've come across countless issues and questions in the gitter about how to test or mock this library. If anyone has done this before, please consider adding a testing guide to the README.

When I edit a polygon with a zoom level low and I snap this polygon to another one, it's very common the created snap point is not exactly on the line / point.
For me, it's a problem regarding I control if these polygons are not intersecting.

The waypoint feature is awesome! Can you also expose the Duration and distance to each waypoint in the callback for onReady?
I believe Google's direction API response already contains that information.

Thanks for a great library!

https://www.netlify.com/blog/2019/10/09/launching-monorepo-support-for-netlify-sites/?utm_campaign=Netlify+Newsletter+-+October+2019&utm_content=Netlify+Newsletter+-+October+2019&utm_medium=email_action&utm_source=customer.io

The drawing layer can currently draw lines and polygons, but it would be useful to also draw circles (cf this tweet).

The GoogleMaps JavaScript API supports circles (see docs).

To implement this, I suggest looking at the current implementation for