AI-generated Key Takeaways
-
The
symmetricDifferencemethod returns the symmetric difference between two geometries. -
This method is used with a geometry as the left operand and accepts another geometry as the right operand, optionally including error margin and projection parameters.
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Examples demonstrate how to use the method in both JavaScript and Python environments.
| Usage | Returns |
|---|---|
Rectangle.
symmetricDifference
(right, maxError
, proj
)
|
Geometry |
| Argument | Type | Details |
|---|---|---|
|
this:
left
|
Geometry | The geometry used as the left operand of the operation. |
right
|
Geometry | The geometry used as the right operand of the operation. |
maxError
|
ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |
proj
|
Projection, default: null | The projection in which to perform the operation. If not specified, the operation will be performed in a spherical coordinate system, and linear distances will be in meters on the sphere. |
Examples
Code Editor (JavaScript)
// Define a Rectangle object. var rectangle = ee . Geometry . Rectangle ( - 122.09 , 37.42 , - 122.08 , 37.43 ); // Define other inputs. var inputGeom = ee . Geometry . BBox ( - 122.085 , 37.415 , - 122.075 , 37.425 ); // Apply the symmetricDifference method to the Rectangle object. var rectangleSymmetricDifference = rectangle . symmetricDifference ({ 'right' : inputGeom , 'maxError' : 1 }); // Print the result to the console. print ( 'rectangle.symmetricDifference(...) =' , rectangleSymmetricDifference ); // Display relevant geometries on the map. Map . setCenter ( - 122.085 , 37.422 , 15 ); Map . addLayer ( rectangle , { 'color' : 'black' }, 'Geometry [black]: rectangle' ); Map . addLayer ( inputGeom , { 'color' : 'blue' }, 'Parameter [blue]: inputGeom' ); Map . addLayer ( rectangleSymmetricDifference , { 'color' : 'red' }, 'Result [red]: rectangle.symmetricDifference' );
import ee import geemap.core as geemap
Colab (Python)
# Define a Rectangle object. rectangle = ee . Geometry . Rectangle ( - 122.09 , 37.42 , - 122.08 , 37.43 ) # Define other inputs. input_geom = ee . Geometry . BBox ( - 122.085 , 37.415 , - 122.075 , 37.425 ) # Apply the symmetricDifference method to the Rectangle object. rectangle_symmetric_difference = rectangle . symmetricDifference ( right = input_geom , maxError = 1 ) # Print the result. display ( 'rectangle.symmetricDifference(...) =' , rectangle_symmetric_difference ) # Display relevant geometries on the map. m = geemap . Map () m . set_center ( - 122.085 , 37.422 , 15 ) m . add_layer ( rectangle , { 'color' : 'black' }, 'Geometry [black]: rectangle' ) m . add_layer ( input_geom , { 'color' : 'blue' }, 'Parameter [blue]: input_geom' ) m . add_layer ( rectangle_symmetric_difference , { 'color' : 'red' }, 'Result [red]: rectangle.symmetricDifference' , ) m
