ee.Geometry.Rectangle.symmetricDifference
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Gibt die symmetrische Differenz zwischen zwei Geometrien zurück.
Nutzung | Ausgabe |
---|
Rectangle.symmetricDifference(right, maxError, proj) | Geometrie |
Argument | Typ | Details |
---|
So gehts: left | Geometrie | Die Geometrie, die als linker Operand des Vorgangs verwendet wird. |
right | Geometrie | Die Geometrie, die als rechter Operand des Vorgangs verwendet wird. |
maxError | ErrorMargin, Standardwert: null | Die maximale Fehlergröße, die bei einer erforderlichen Rückprojektion toleriert wird. |
proj | Projektion, Standardwert: null | Die Projektion, in der der Vorgang ausgeführt werden soll. Wenn nichts angegeben ist, wird der Vorgang in einem sphärischen Koordinatensystem ausgeführt und lineare Entfernungen werden in Metern auf der Kugel angegeben. |
Beispiele
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');
Python einrichten
Informationen zur Python API und zur Verwendung von geemap
für die interaktive Entwicklung finden Sie auf der Seite
Python-Umgebung.
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
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Zuletzt aktualisiert: 2025-07-26 (UTC).
[null,null,["Zuletzt aktualisiert: 2025-07-26 (UTC)."],[[["\u003cp\u003e\u003ccode\u003esymmetricDifference()\u003c/code\u003e returns a Geometry representing the parts of two geometries that do not intersect.\u003c/p\u003e\n"],["\u003cp\u003eIt takes a Geometry as the \u003ccode\u003eright\u003c/code\u003e operand and optional \u003ccode\u003emaxError\u003c/code\u003e and \u003ccode\u003eproj\u003c/code\u003e parameters for reprojection control.\u003c/p\u003e\n"],["\u003cp\u003eThe result includes areas of the \u003ccode\u003eleft\u003c/code\u003e (calling) Geometry and the \u003ccode\u003eright\u003c/code\u003e Geometry that are not shared by both.\u003c/p\u003e\n"],["\u003cp\u003eThis operation is useful for isolating unique regions of two overlapping or adjacent geometries.\u003c/p\u003e\n"]]],[],null,["# ee.Geometry.Rectangle.symmetricDifference\n\nReturns the symmetric difference between two geometries.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------------------------------------------|----------|\n| Rectangle.symmetricDifference`(right, `*maxError* `, `*proj*`)` | Geometry |\n\n| Argument | Type | Details |\n|--------------|----------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| this: `left` | Geometry | The geometry used as the left operand of the operation. |\n| `right` | Geometry | The geometry used as the right operand of the operation. |\n| `maxError` | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |\n| `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. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a Rectangle object.\nvar rectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43);\n\n// Define other inputs.\nvar inputGeom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425);\n\n// Apply the symmetricDifference method to the Rectangle object.\nvar rectangleSymmetricDifference = rectangle.symmetricDifference({'right': inputGeom, 'maxError': 1});\n\n// Print the result to the console.\nprint('rectangle.symmetricDifference(...) =', rectangleSymmetricDifference);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(rectangle,\n {'color': 'black'},\n 'Geometry [black]: rectangle');\nMap.addLayer(inputGeom,\n {'color': 'blue'},\n 'Parameter [blue]: inputGeom');\nMap.addLayer(rectangleSymmetricDifference,\n {'color': 'red'},\n 'Result [red]: rectangle.symmetricDifference');\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# Define a Rectangle object.\nrectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43)\n\n# Define other inputs.\ninput_geom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425)\n\n# Apply the symmetricDifference method to the Rectangle object.\nrectangle_symmetric_difference = rectangle.symmetricDifference(\n right=input_geom, maxError=1\n)\n\n# Print the result.\ndisplay('rectangle.symmetricDifference(...) =', rectangle_symmetric_difference)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(rectangle, {'color': 'black'}, 'Geometry [black]: rectangle')\nm.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')\nm.add_layer(\n rectangle_symmetric_difference,\n {'color': 'red'},\n 'Result [red]: rectangle.symmetricDifference',\n)\nm\n```"]]