공지사항:
2025년 4월 15일 전에 Earth Engine 사용을 위해 등록된 모든 비상업용 프로젝트는 Earth Engine 액세스를 유지하기 위해
비상업용 자격 요건을 인증해야 합니다.
ee.Geometry.MultiPoint.symmetricDifference
컬렉션을 사용해 정리하기
내 환경설정을 기준으로 콘텐츠를 저장하고 분류하세요.
두 도형 간의 대칭 차이를 반환합니다.
사용 | 반환 값 |
---|
MultiPoint.symmetricDifference(right, maxError, proj) | 도형 |
인수 | 유형 | 세부정보 |
---|
다음과 같은 경우: left | 도형 | 연산의 왼쪽 피연산자로 사용되는 지오메트리입니다. |
right | 도형 | 작업의 오른쪽 피연산자로 사용되는 지오메트리입니다. |
maxError | ErrorMargin, 기본값: null | 필요한 재투영을 실행할 때 허용되는 최대 오류량입니다. |
proj | 예상, 기본값: null | 작업을 실행할 프로젝션입니다. 지정하지 않으면 작업이 구면 좌표계에서 실행되며 선형 거리는 구의 미터 단위입니다. |
예
코드 편집기 (JavaScript)
// Define a MultiPoint object.
var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);
// Define other inputs.
var inputGeom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425);
// Apply the symmetricDifference method to the MultiPoint object.
var multiPointSymmetricDifference = multiPoint.symmetricDifference({'right': inputGeom, 'maxError': 1});
// Print the result to the console.
print('multiPoint.symmetricDifference(...) =', multiPointSymmetricDifference);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPoint,
{'color': 'black'},
'Geometry [black]: multiPoint');
Map.addLayer(inputGeom,
{'color': 'blue'},
'Parameter [blue]: inputGeom');
Map.addLayer(multiPointSymmetricDifference,
{'color': 'red'},
'Result [red]: multiPoint.symmetricDifference');
Python 설정
Python API 및 geemap
를 사용한 대화형 개발에 관한 자세한 내용은
Python 환경 페이지를 참고하세요.
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]])
# Define other inputs.
input_geom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425)
# Apply the symmetricDifference method to the MultiPoint object.
multipoint_symmetric_difference = multipoint.symmetricDifference(
right=input_geom, maxError=1
)
# Print the result.
display(
'multipoint.symmetricDifference(...) =', multipoint_symmetric_difference
)
# 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(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')
m.add_layer(
multipoint_symmetric_difference,
{'color': 'red'},
'Result [red]: multipoint.symmetricDifference',
)
m
달리 명시되지 않는 한 이 페이지의 콘텐츠에는 Creative Commons Attribution 4.0 라이선스에 따라 라이선스가 부여되며, 코드 샘플에는 Apache 2.0 라이선스에 따라 라이선스가 부여됩니다. 자세한 내용은 Google Developers 사이트 정책을 참조하세요. 자바는 Oracle 및/또는 Oracle 계열사의 등록 상표입니다.
최종 업데이트: 2025-07-26(UTC)
[null,null,["최종 업데이트: 2025-07-26(UTC)"],[[["\u003cp\u003eReturns the geometry that represents the portions of two geometries that do not intersect with each other.\u003c/p\u003e\n"],["\u003cp\u003eAccepts a Geometry as the right operand and optional \u003ccode\u003emaxError\u003c/code\u003e and \u003ccode\u003eproj\u003c/code\u003e parameters for customization.\u003c/p\u003e\n"],["\u003cp\u003eCan be applied to MultiPoint geometries to identify areas unique to each input.\u003c/p\u003e\n"],["\u003cp\u003eThe result is a new Geometry object representing the symmetric difference.\u003c/p\u003e\n"]]],["The `symmetricDifference` method calculates the symmetric difference between two geometries (`left` and `right`). It returns a new geometry representing the areas unique to each input. The method accepts an optional `maxError` parameter for reprojection tolerance and a `proj` parameter to specify the operation's projection. It is called on a MultiPoint geometry and can be used to compare it with another input geometry, as demonstrated in the JavaScript and Python examples.\n"],null,["# ee.Geometry.MultiPoint.symmetricDifference\n\nReturns the symmetric difference between two geometries.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------------------------------------------------|----------|\n| MultiPoint.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 MultiPoint object.\nvar multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);\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 MultiPoint object.\nvar multiPointSymmetricDifference = multiPoint.symmetricDifference({'right': inputGeom, 'maxError': 1});\n\n// Print the result to the console.\nprint('multiPoint.symmetricDifference(...) =', multiPointSymmetricDifference);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiPoint,\n {'color': 'black'},\n 'Geometry [black]: multiPoint');\nMap.addLayer(inputGeom,\n {'color': 'blue'},\n 'Parameter [blue]: inputGeom');\nMap.addLayer(multiPointSymmetricDifference,\n {'color': 'red'},\n 'Result [red]: multiPoint.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 MultiPoint object.\nmultipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])\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 MultiPoint object.\nmultipoint_symmetric_difference = multipoint.symmetricDifference(\n right=input_geom, maxError=1\n)\n\n# Print the result.\ndisplay(\n 'multipoint.symmetricDifference(...) =', multipoint_symmetric_difference\n)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint')\nm.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')\nm.add_layer(\n multipoint_symmetric_difference,\n {'color': 'red'},\n 'Result [red]: multipoint.symmetricDifference',\n)\nm\n```"]]