ee.Geometry.LineString.intersects

  • The intersects() method determines if two geometries share any points in common, returning true if they do and false otherwise.

  • It can be applied to LineString geometries and accepts a second geometry as input for comparison.

  • Optional parameters include maxError for reprojection tolerance and proj to specify the projection for the operation.

  • The provided examples demonstrate the usage of intersects() with JavaScript and Python APIs in Earth Engine.

Returns true if and only if the geometries intersect.

UsageReturns
LineString.intersects(right, maxError, proj)Boolean
ArgumentTypeDetails
this: leftGeometryThe geometry used as the left operand of the operation.
rightGeometryThe geometry used as the right operand of the operation.
maxErrorErrorMargin, default: nullThe maximum amount of error tolerated when performing any necessary reprojection.
projProjection, default: nullThe 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 LineString object.
var lineString = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]]);

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

// Apply the intersects method to the LineString object.
var lineStringIntersects = lineString.intersects({'right': inputGeom, 'maxError': 1});

// Print the result to the console.
print('lineString.intersects(...) =', lineStringIntersects);

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

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 LineString object.
linestring = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]])

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

# Apply the intersects method to the LineString object.
linestring_intersects = linestring.intersects(right=input_geom, maxError=1)

# Print the result.
display('linestring.intersects(...) =', linestring_intersects)

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