ee.Geometry.intersection
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Zwraca przecięcie dwóch geometrii.
Wykorzystanie | Zwroty |
---|
Geometry.intersection(right, maxError, proj) | Geometria |
Argument | Typ | Szczegóły |
---|
to: left | Geometria | Geometria używana jako lewy operand operacji. |
right | Geometria | Geometria używana jako prawy operand operacji. |
maxError | ErrorMargin, domyślnie: null | Maksymalna dopuszczalna wartość błędu podczas wykonywania niezbędnej reprojekcji. |
proj | Prognoza, domyślnie: null | Projekcja, w której ma zostać wykonana operacja. Jeśli nie zostanie podana, operacja zostanie wykonana w sferycznym układzie współrzędnych, a odległości liniowe będą podawane w metrach na sferze. |
Przykłady
Edytor kodu (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 intersection method to the Geometry object.
var geometryIntersection = geometry.intersection({'right': inputGeom, 'maxError': 1});
// Print the result to the console.
print('geometry.intersection(...) =', geometryIntersection);
// 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(geometryIntersection,
{'color': 'red'},
'Result [red]: geometry.intersection');
Konfiguracja Pythona
Informacje o interfejsie Python API i używaniu geemap
do interaktywnego programowania znajdziesz na stronie
Środowisko Python.
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 intersection method to the Geometry object.
geometry_intersection = geometry.intersection(right=input_geom, maxError=1)
# Print the result.
display('geometry.intersection(...) =', geometry_intersection)
# 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_intersection,
{'color': 'red'},
'Result [red]: geometry.intersection',
)
m
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Ostatnia aktualizacja: 2025-07-26 UTC.
[null,null,["Ostatnia aktualizacja: 2025-07-26 UTC."],[[["\u003cp\u003eReturns a new Geometry that represents the shared area between two input geometries.\u003c/p\u003e\n"],["\u003cp\u003eAccepts two geometries as input: \u003ccode\u003eleft\u003c/code\u003e (the geometry the method is called on) and \u003ccode\u003eright\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eCan be performed using a specified projection (\u003ccode\u003eproj\u003c/code\u003e) or a spherical coordinate system with linear distances in meters if no projection is defined.\u003c/p\u003e\n"],["\u003cp\u003eIncludes an optional \u003ccode\u003emaxError\u003c/code\u003e parameter to control the tolerance for reprojection errors.\u003c/p\u003e\n"]]],["The `intersection` method computes the overlapping area between two geometries. It takes a `right` geometry as input, and optionally `maxError` and `proj` for reprojection settings. The output is a new `Geometry` representing the intersection. If no `proj` is provided, the operation uses spherical coordinates with linear distances in meters. Examples in JavaScript and Python demonstrate defining two geometries, using the method to get the intersection, and displaying the result.\n"],null,["# ee.Geometry.intersection\n\nReturns the intersection of the two geometries.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------------------------------------------------|----------|\n| Geometry.intersection`(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 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// Define other inputs.\nvar inputGeom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425);\n\n// Apply the intersection method to the Geometry object.\nvar geometryIntersection = geometry.intersection({'right': inputGeom, 'maxError': 1});\n\n// Print the result to the console.\nprint('geometry.intersection(...) =', geometryIntersection);\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(inputGeom,\n {'color': 'blue'},\n 'Parameter [blue]: inputGeom');\nMap.addLayer(geometryIntersection,\n {'color': 'red'},\n 'Result [red]: geometry.intersection');\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# Define other inputs.\ninput_geom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425)\n\n# Apply the intersection method to the Geometry object.\ngeometry_intersection = geometry.intersection(right=input_geom, maxError=1)\n\n# Print the result.\ndisplay('geometry.intersection(...) =', geometry_intersection)\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(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')\nm.add_layer(\n geometry_intersection,\n {'color': 'red'},\n 'Result [red]: geometry.intersection',\n)\nm\n```"]]