AI-generated Key Takeaways
-
The
dissolvemethod returns the union of a geometry, leaving single geometries untouched and uniting multi-geometries. -
The method can take optional
maxErrorandprojarguments to control the maximum allowed error during reprojection and the projection used for the union, respectively. -
The output of the
dissolvemethod is a single Geometry object.
| 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
