ee.Geometry.MultiPoint.dissolve

  • The dissolve method returns the union of a geometry, leaving single geometries untouched and uniting multi-geometries.

  • The method can take optional maxError and proj arguments to control the maximum allowed error during reprojection and the projection used for the union, respectively.

  • The output of the dissolve method is a single Geometry object.

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

UsageReturns
MultiPoint.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 MultiPoint object.
var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);

// Apply the dissolve method to the MultiPoint object.
var multiPointDissolve = multiPoint.dissolve({'maxError': 1});

// Print the result to the console.
print('multiPoint.dissolve(...) =', multiPointDissolve);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPoint,
             {'color': 'black'},
             'Geometry [black]: multiPoint');
Map.addLayer(multiPointDissolve,
             {'color': 'red'},
             'Result [red]: multiPoint.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 MultiPoint object.
multipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])

# Apply the dissolve method to the MultiPoint object.
multipoint_dissolve = multipoint.dissolve(maxError=1)

# Print the result.
display('multipoint.dissolve(...) =', multipoint_dissolve)

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