CODEWITHSUNDEEP
google-maps-api-3
Pieter Vogelaar
Pieter Vogelaar

Reputation: 405

What is the unit of measurement that google.maps.geometry.spherical.computeSignedArea() returns?

I want to calculate the area in square kilometers of a polygon in Google Maps API V3. With the google.maps.geometry.spherical.computeSignedArea() this should be possible and easy.

http://code.google.com/intl/en-US/apis/maps/documentation/javascript/reference.html#spherical

It works nicely and it returns a number as described in the documentation. But what unit of measurement is the number? I can't find it anywhere! Is it meters, centimeters, feet?

Upvotes: 1

Views: 2003

Answers (1)

jdross
jdross

Reputation: 1206

The function returns the unit in m^2 (square meters)

As described in the documentation for computeArea:

Returns the area of a closed path. The computed area uses the same units as the radius. The radius defaults to the Earth's radius in meters, in which case the area is in square meters.

Upvotes: 3

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