AI-generated Key Takeaways
-
Returns the union of the geometry, leaving single geometries untouched and uniting multi-geometries.
-
Can be applied to MultiPoint geometries using
dissolve()
, with optionalmaxError
andproj
parameters. -
maxError
controls the reprojection error tolerance, andproj
specifies the projection for the union operation. -
If
proj
is not specified, the union is performed in a spherical coordinate system.
Usage | Returns |
---|---|
MultiPoint.dissolve(maxError, proj) | Geometry |
Argument | Type | Details |
---|---|---|
this: geometry | Geometry | The geometry to union. |
maxError | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |
proj | Projection, default: null | If 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');
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