ee.Geometry.LinearRing.area

  • The area() method returns the area of a geometry, with points and line strings having an area of 0 and multi geometries having the sum of their components' areas.

  • The method takes optional maxError and proj arguments to control the accuracy of reprojection and the units of the result.

  • The result of area() is a Float.

  • Examples are provided for using the area() method in both JavaScript and Python environments.

 Returns the area of the geometry. Area of points and line strings is 0 and the area of multi geometries is the sum of the areas of their components (intersecting areas are counted multiple times).

UsageReturns
LinearRing.area(maxError, proj)Float
ArgumentTypeDetails
this: geometryGeometryThe geometry input.
maxErrorErrorMargin, default: nullThe maximum amount of error tolerated when performing any necessary reprojection.
projProjection, default: nullIf specified, the result will be in the units of the coordinate system of this projection. Otherwise it will be in square meters.

Examples

Code Editor (JavaScript)

// Define a LinearRing object.
var linearRing = ee.Geometry.LinearRing(
    [[-122.091, 37.420],
     [-122.085, 37.422],
     [-122.080, 37.430]]);

// Apply the area method to the LinearRing object.
var linearRingArea = linearRing.area({'maxError': 1});

// Print the result to the console.
print('linearRing.area(...) =', linearRingArea);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(linearRing,
             {'color': 'black'},
             'Geometry [black]: linearRing');

Python setup

See the Python Environment page for information on the Python API and using geemap for interactive development.

import ee
import geemap.core as geemap

Colab (Python)

# Define a LinearRing object.
linearring = ee.Geometry.LinearRing(
    [[-122.091, 37.420], [-122.085, 37.422], [-122.080, 37.430]]
)

# Apply the area method to the LinearRing object.
linearring_area = linearring.area(maxError=1)

# Print the result.
display('linearring.area(...) =', linearring_area)

# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(linearring, {'color': 'black'}, 'Geometry [black]: linearring')
m