ee.Geometry.LineString.dissolve

Returns the union of the geometry. This leaves single geometries untouched, and unions multi geometries.

UsageReturns
LineString.dissolve(maxError, proj)Geometry
ArgumentTypeDetails
this: geometryGeometryThe geometry to union.
maxErrorErrorMargin, default: nullThe maximum amount of error tolerated when performing any necessary reprojection.
projProjection, default: nullIf specified, the union will be performed in this projection. Otherwise it will be performed in a spherical coordinate system.

Examples

Code Editor (JavaScript)

// Define a LineString object.
var lineString = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]]);

// Apply the dissolve method to the LineString object.
var lineStringDissolve = lineString.dissolve({'maxError': 1});

// Print the result to the console.
print('lineString.dissolve(...) =', lineStringDissolve);

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

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]])

# Apply the dissolve method to the LineString object.
linestring_dissolve = linestring.dissolve(maxError=1)

# Print the result.
display('linestring.dissolve(...) =', linestring_dissolve)

# 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(
    linestring_dissolve, {'color': 'red'}, 'Result [red]: linestring.dissolve'
)
m