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ee.Geometry.MultiLineString.difference
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Returns the result of subtracting the 'right' geometry from the 'left' geometry.
Usage Returns MultiLineString. difference (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 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]]]);
// Define other inputs.
var inputGeom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425);
// Apply the difference method to the MultiLineString object.
var multiLineStringDifference = multiLineString.difference({'right': inputGeom, 'maxError': 1});
// Print the result to the console.
print('multiLineString.difference(...) =', multiLineStringDifference);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiLineString,
{'color': 'black'},
'Geometry [black]: multiLineString');
Map.addLayer(inputGeom,
{'color': 'blue'},
'Parameter [blue]: inputGeom');
Map.addLayer(multiLineStringDifference,
{'color': 'red'},
'Result [red]: multiLineString.difference');
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]],
])
# Define other inputs.
input_geom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425)
# Apply the difference method to the MultiLineString object.
multilinestring_difference = multilinestring.difference(
right=input_geom, maxError=1
)
# Print the result.
display('multilinestring.difference(...) =', multilinestring_difference)
# 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(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')
m.add_layer(
multilinestring_difference,
{'color': 'red'},
'Result [red]: multilinestring.difference',
)
m
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Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License , and code samples are licensed under the Apache 2.0 License . For details, see the Google Developers Site Policies . Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2023-10-06 UTC.
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