ee.Geometry.MultiLineString.cutLines

AI-generated Key Takeaways

• The cutLines method converts LineString, MultiLineString, and LinearRing geometries into a MultiLineString by cutting them into parts no longer than the specified distance.

• Other geometry types are converted to an empty MultiLineString.

• The method takes distances, maxError, and proj as arguments.

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.

Usage	Returns
MultiLineString.cutLines(distances, maxError, proj)	Geometry

Argument	Type	Details
this: geometry	Geometry	Cuts the lines of this geometry.
distances	List	Distances along each LineString to cut the line into separate pieces, measured in units of the given proj, or meters if proj is unspecified.
maxError	ErrorMargin, default: null	The maximum amount of error tolerated when performing any necessary reprojection.
proj	Projection, default: null	Projection of the result and distance measurements, or EPSG:4326 if unspecified.

Examples

Code Editor (JavaScript)

// Define a MultiLineString object.
var multiLineString = ee.Geometry.MultiLineString(
   [[[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],
    [[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]]]);

// Apply the cutLines method to the MultiLineString object.
var multiLineStringCutLines = multiLineString.cutLines({'distances': [10, 100], 'maxError': 1});

// Print the result to the console.
print('multiLineString.cutLines(...) =', multiLineStringCutLines);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiLineString,
             {'color': 'black'},
             'Geometry [black]: multiLineString');
Map.addLayer(multiLineStringCutLines,
             {'color': 'red'},
             'Result [red]: multiLineString.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 MultiLineString object.
multilinestring = ee.Geometry.MultiLineString([
    [[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],
    [[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]],
])

# Apply the cutLines method to the MultiLineString object.
multilinestring_cut_lines = multilinestring.cutLines(
    distances=[10, 100], maxError=1
)

# Print the result.
display('multilinestring.cutLines(...) =', multilinestring_cut_lines)

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