A coords value is a basic set of coordinates (latitude & longitude) in a simple JSON format:

    "lat": 32.3113966,
    "lng": -64.7527469

To be clear, coordinates are not actually a Model (and so this page technically doesn't belong here). But the format of coords is commonly used throughout the plugin, which gives coordinates a pseudo-model behavior.

# Common Format

A set of coordinates is handled in this common format. Any place you encounter a coords value, it will be handled in this format. Here are just a few examples of where you'd see a set of coordinates in this format:

Where Specifically
Maps As the center point of a map. Reference
Info Windows As a predefined value in an info window template. Reference
Proximity Search As the target of a proximity search. Reference
Geocoding (Lookup) In a set of geocoding results. Reference
Address Fields Available on the parent Location Model. Reference
Visitor Geolocation Available on the parent Location Model. Reference

# Google Maps Coordinates

The internal format of coords aligns with the established format of a Google Maps LatLngLiteral object (opens new window). Since the two formats are effectively identical, you can use the values interchangeably.

Nearly Identical

Roughly speaking, you can say that the Google Maps plugin "uses" the LatLngLiteral to handle coordinates internally. There may be some subtle differences, but you can generally treat them as the same thing and not encounter any issues.