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ee.Geometry.symmetricDifference

Returns the symmetric difference between two geometries.

Usage	Returns
`Geometry. 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 Geometry object. 
 var 
  
 geometry 
  
 = 
  
 ee 
 . 
 Geometry 
 ({ 
  
 'type' 
 : 
  
 'Polygon' 
 , 
  
 'coordinates' 
 : 
  
 [[[ 
 - 
 122.081 
 , 
  
 37.417 
 ], 
  
 [ 
 - 
 122.086 
 , 
  
 37.421 
 ], 
  
 [ 
 - 
 122.084 
 , 
  
 37.418 
 ], 
  
 [ 
 - 
 122.089 
 , 
  
 37.416 
 ]]] 
 }); 
 // Define other inputs. 
 var 
  
 inputGeom 
  
 = 
  
 ee 
 . 
 Geometry 
 . 
 BBox 
 ( 
 - 
 122.085 
 , 
  
 37.415 
 , 
  
 - 
 122.075 
 , 
  
 37.425 
 ); 
 // Apply the symmetricDifference method to the Geometry object. 
 var 
  
 geometrySymmetricDifference 
  
 = 
  
 geometry 
 . 
 symmetricDifference 
 ({ 
 'right' 
 : 
  
 inputGeom 
 , 
  
 'maxError' 
 : 
  
 1 
 }); 
 // Print the result to the console. 
 print 
 ( 
 'geometry.symmetricDifference(...) =' 
 , 
  
 geometrySymmetricDifference 
 ); 
 // Display relevant geometries on the map. 
 Map 
 . 
 setCenter 
 ( 
 - 
 122.085 
 , 
  
 37.422 
 , 
  
 15 
 ); 
 Map 
 . 
 addLayer 
 ( 
 geometry 
 , 
  
 { 
 'color' 
 : 
  
 'black' 
 }, 
  
 'Geometry [black]: geometry' 
 ); 
 Map 
 . 
 addLayer 
 ( 
 inputGeom 
 , 
  
 { 
 'color' 
 : 
  
 'blue' 
 }, 
  
 'Parameter [blue]: inputGeom' 
 ); 
 Map 
 . 
 addLayer 
 ( 
 geometrySymmetricDifference 
 , 
  
 { 
 'color' 
 : 
  
 'red' 
 }, 
  
 'Result [red]: geometry.symmetricDifference' 
 );

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 Geometry object. 
 geometry 
 = 
 ee 
 . 
 Geometry 
 ({ 
 'type' 
 : 
 'Polygon' 
 , 
 'coordinates' 
 : 
 [[ 
 [ 
 - 
 122.081 
 , 
 37.417 
 ], 
 [ 
 - 
 122.086 
 , 
 37.421 
 ], 
 [ 
 - 
 122.084 
 , 
 37.418 
 ], 
 [ 
 - 
 122.089 
 , 
 37.416 
 ], 
 ]], 
 }) 
 # Define other inputs. 
 input_geom 
 = 
 ee 
 . 
 Geometry 
 . 
 BBox 
 ( 
 - 
 122.085 
 , 
 37.415 
 , 
 - 
 122.075 
 , 
 37.425 
 ) 
 # Apply the symmetricDifference method to the Geometry object. 
 geometry_symmetric_difference 
 = 
 geometry 
 . 
 symmetricDifference 
 ( 
 right 
 = 
 input_geom 
 , 
 maxError 
 = 
 1 
 ) 
 # Print the result. 
 display 
 ( 
 'geometry.symmetricDifference(...) =' 
 , 
 geometry_symmetric_difference 
 ) 
 # Display relevant geometries on the map. 
 m 
 = 
 geemap 
 . 
 Map 
 () 
 m 
 . 
 set_center 
 ( 
 - 
 122.085 
 , 
 37.422 
 , 
 15 
 ) 
 m 
 . 
 add_layer 
 ( 
 geometry 
 , 
 { 
 'color' 
 : 
 'black' 
 }, 
 'Geometry [black]: geometry' 
 ) 
 m 
 . 
 add_layer 
 ( 
 input_geom 
 , 
 { 
 'color' 
 : 
 'blue' 
 }, 
 'Parameter [blue]: input_geom' 
 ) 
 m 
 . 
 add_layer 
 ( 
 geometry_symmetric_difference 
 , 
 { 
 'color' 
 : 
 'red' 
 }, 
 'Result [red]: geometry.symmetricDifference' 
 , 
 ) 
 m

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Examples

Code Editor (JavaScript)

Colab (Python)

ee.Geometry.symmetricDifference