ee.Geometry.LinearRing.cutLines

  • Converts LineString, MultiLineString, and LinearRing geometries into a MultiLineString, dividing them into segments no longer than specified distances.

  • Employs the cutLines method, accepting distances, maximum error tolerance, and projection as parameters.

  • Returns an empty MultiLineString for unsupported geometry types.

  • Distance units for cutting lines are determined by the provided projection or default to meters.

 Converts LineString, MultiLineString, and LinearRing geometries into a MultiLineString by cutting them into parts no longer than the given distance along their length. All other geometry types will be converted to an empty MultiLineString.

UsageReturns
LinearRing.cutLines(distances, maxError, proj)Geometry
ArgumentTypeDetails
this: geometryGeometryCuts the lines of this geometry.
distancesListDistances along each LineString to cut the line into separate pieces, measured in units of the given proj, or meters if proj is unspecified.
maxErrorErrorMargin, default: nullThe maximum amount of error tolerated when performing any necessary reprojection.
projProjection, default: nullProjection of the result and distance measurements, or EPSG:4326 if unspecified.

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 cutLines method to the LinearRing object.
var linearRingCutLines = linearRing.cutLines({'distances': [10, 100], 'maxError': 1});

// Print the result to the console.
print('linearRing.cutLines(...) =', linearRingCutLines);

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

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 cutLines method to the LinearRing object.
linearring_cut_lines = linearring.cutLines(distances=[10, 100], maxError=1)

# Print the result.
display('linearring.cutLines(...) =', linearring_cut_lines)

# 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(
    linearring_cut_lines, {'color': 'red'}, 'Result [red]: linearring.cutLines'
)
m