ee.Geometry.BBox.dissolve

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

  • The method accepts optional maxError and proj arguments to control reprojection tolerance and the projection for the union operation.

  • The return value of dissolve is a Geometry object.

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

UsageReturns
BBox.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 BBox object.
var bBox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43);

// Apply the dissolve method to the BBox object.
var bBoxDissolve = bBox.dissolve({'maxError': 1});

// Print the result to the console.
print('bBox.dissolve(...) =', bBoxDissolve);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(bBox,
             {'color': 'black'},
             'Geometry [black]: bBox');
Map.addLayer(bBoxDissolve,
             {'color': 'red'},
             'Result [red]: bBox.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 BBox object.
bbox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43)

# Apply the dissolve method to the BBox object.
bbox_dissolve = bbox.dissolve(maxError=1)

# Print the result.
display('bbox.dissolve(...) =', bbox_dissolve)

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