ee.Geometry.LinearRing.intersection

AI-generated Key Takeaways

• Returns a Geometry representing the shared area between two geometries.

• Accepts a right-hand Geometry operand, optional error margin, and projection for the operation.

• Can be applied to LinearRing geometries to find the intersecting portion with another geometry.

• If projection is unspecified, calculations occur in a spherical coordinate system with distances in meters.

Returns the intersection of the two geometries.

Usage	Returns
LinearRing.intersection(right, maxError, proj)	Geometry

Argument	Type	Details
this: left	Geometry	The geometry used as the left operand of the operation.
right	Geometry	The geometry used as the right operand of the operation.
maxError	ErrorMargin, default: null	The maximum amount of error tolerated when performing any necessary reprojection.
proj	Projection, default: null	The projection in which to perform the operation. If not specified, the operation will be performed in a spherical coordinate system, and linear distances will be in meters on the sphere.

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]]);

// Define other inputs.
var inputGeom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425);

// Apply the intersection method to the LinearRing object.
var linearRingIntersection = linearRing.intersection({'right': inputGeom, 'maxError': 1});

// Print the result to the console.
print('linearRing.intersection(...) =', linearRingIntersection);

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

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]]
)

# Define other inputs.
input_geom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425)

# Apply the intersection method to the LinearRing object.
linearring_intersection = linearring.intersection(right=input_geom, maxError=1)

# Print the result.
display('linearring.intersection(...) =', linearring_intersection)

# 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.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')
m.add_layer(
    linearring_intersection,
    {'color': 'red'},
    'Result [red]: linearring.intersection',
)
m