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.dissolve
컬렉션을 사용해 정리하기
내 환경설정을 기준으로 콘텐츠를 저장하고 분류하세요.
기하 도형의 합집합을 반환합니다. 이렇게 하면 단일 도형은 그대로 유지되고 멀티 도형은 통합됩니다.
사용 | 반환 값 |
---|
Geometry.dissolve(maxError, proj) | 도형 |
인수 | 유형 | 세부정보 |
---|
다음과 같은 경우: geometry | 도형 | 합집합할 도형입니다. |
maxError | ErrorMargin, 기본값: null | 필요한 재투영을 실행할 때 허용되는 최대 오류량입니다. |
proj | 예상, 기본값: null | 지정된 경우 이 투영에서 결합이 실행됩니다. 그렇지 않으면 구면 좌표계에서 실행됩니다. |
예
코드 편집기 (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]]]
});
// Apply the dissolve method to the Geometry object.
var geometryDissolve = geometry.dissolve({'maxError': 1});
// Print the result to the console.
print('geometry.dissolve(...) =', geometryDissolve);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(geometry,
{'color': 'black'},
'Geometry [black]: geometry');
Map.addLayer(geometryDissolve,
{'color': 'red'},
'Result [red]: geometry.dissolve');
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 Geometry object.
geometry = ee.Geometry({
'type': 'Polygon',
'coordinates': [[
[-122.081, 37.417],
[-122.086, 37.421],
[-122.084, 37.418],
[-122.089, 37.416],
]],
})
# Apply the dissolve method to the Geometry object.
geometry_dissolve = geometry.dissolve(maxError=1)
# Print the result.
display('geometry.dissolve(...) =', geometry_dissolve)
# 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(
geometry_dissolve, {'color': 'red'}, 'Result [red]: geometry.dissolve'
)
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\u003e\u003ccode\u003edissolve()\u003c/code\u003e returns a Geometry object representing the union of the input geometry's components.\u003c/p\u003e\n"],["\u003cp\u003eIt simplifies MultiGeometries by merging overlapping or adjacent parts, while leaving single geometries unchanged.\u003c/p\u003e\n"],["\u003cp\u003eOptional parameters \u003ccode\u003emaxError\u003c/code\u003e and \u003ccode\u003eproj\u003c/code\u003e control the reprojection tolerance and target projection for the union operation, respectively.\u003c/p\u003e\n"],["\u003cp\u003eUseful for dissolving boundaries between features within a MultiGeometry or creating a single, unified geometry from multiple overlapping geometries.\u003c/p\u003e\n"]]],["The `dissolve` method unions geometries, leaving single geometries unchanged and operating on multi-geometries. It takes `maxError` (maximum error tolerance during reprojection) and `proj` (projection for the union) as optional arguments. If `proj` is not specified, it uses a spherical coordinate system. The method returns a `Geometry` object. Example code demonstrates applying `dissolve` to a polygon, setting `maxError` to 1, and displaying the original and dissolved geometries on a map.\n"],null,["# ee.Geometry.dissolve\n\nReturns the union of the geometry. This leaves single geometries untouched, and unions multi geometries.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------------------------|----------|\n| Geometry.dissolve`(`*maxError* `, `*proj*`)` | Geometry |\n\n| Argument | Type | Details |\n|------------------|----------------------------|--------------------------------------------------------------------------------------------------------------------------------|\n| this: `geometry` | Geometry | The geometry to union. |\n| `maxError` | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |\n| `proj` | Projection, default: null | If specified, the union will be performed in this projection. Otherwise it will be performed in a spherical coordinate system. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a Geometry object.\nvar geometry = ee.Geometry({\n 'type': 'Polygon',\n 'coordinates':\n [[[-122.081, 37.417],\n [-122.086, 37.421],\n [-122.084, 37.418],\n [-122.089, 37.416]]]\n});\n\n// Apply the dissolve method to the Geometry object.\nvar geometryDissolve = geometry.dissolve({'maxError': 1});\n\n// Print the result to the console.\nprint('geometry.dissolve(...) =', geometryDissolve);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(geometry,\n {'color': 'black'},\n 'Geometry [black]: geometry');\nMap.addLayer(geometryDissolve,\n {'color': 'red'},\n 'Result [red]: geometry.dissolve');\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 Geometry object.\ngeometry = ee.Geometry({\n 'type': 'Polygon',\n 'coordinates': [[\n [-122.081, 37.417],\n [-122.086, 37.421],\n [-122.084, 37.418],\n [-122.089, 37.416],\n ]],\n})\n\n# Apply the dissolve method to the Geometry object.\ngeometry_dissolve = geometry.dissolve(maxError=1)\n\n# Print the result.\ndisplay('geometry.dissolve(...) =', geometry_dissolve)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(geometry, {'color': 'black'}, 'Geometry [black]: geometry')\nm.add_layer(\n geometry_dissolve, {'color': 'red'}, 'Result [red]: geometry.dissolve'\n)\nm\n```"]]