ee.Geometry.MultiPolygon.intersection
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Enregistrez et classez les contenus selon vos préférences.
Renvoie l'intersection des deux géométries.
Utilisation | Renvoie |
---|
MultiPolygon.intersection(right, maxError, proj) | Géométrie |
Argument | Type | Détails |
---|
ceci : left | Géométrie | Géométrie utilisée comme opérande de gauche de l'opération. |
right | Géométrie | Géométrie utilisée comme opérande de droite de l'opération. |
maxError | ErrorMargin, valeur par défaut : null | Quantité maximale d'erreur tolérée lors de toute reprojection nécessaire. |
proj | Projection, valeur par défaut : null | Projection dans laquelle effectuer l'opération. Si elle n'est pas spécifiée, l'opération sera effectuée dans un système de coordonnées sphériques et les distances linéaires seront exprimées en mètres sur la sphère. |
Exemples
Éditeur de code (JavaScript)
// Define a MultiPolygon object.
var multiPolygon = ee.Geometry.MultiPolygon(
[[[[-122.092, 37.424],
[-122.086, 37.418],
[-122.079, 37.425],
[-122.085, 37.423]]],
[[[-122.081, 37.417],
[-122.086, 37.421],
[-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 MultiPolygon object.
var multiPolygonIntersection = multiPolygon.intersection({'right': inputGeom, 'maxError': 1});
// Print the result to the console.
print('multiPolygon.intersection(...) =', multiPolygonIntersection);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPolygon,
{'color': 'black'},
'Geometry [black]: multiPolygon');
Map.addLayer(inputGeom,
{'color': 'blue'},
'Parameter [blue]: inputGeom');
Map.addLayer(multiPolygonIntersection,
{'color': 'red'},
'Result [red]: multiPolygon.intersection');
Configuration de Python
Consultez la page
Environnement Python pour en savoir plus sur l'API Python et sur l'utilisation de geemap
pour le développement interactif.
import ee
import geemap.core as geemap
Colab (Python)
# Define a MultiPolygon object.
multipolygon = ee.Geometry.MultiPolygon([
[[
[-122.092, 37.424],
[-122.086, 37.418],
[-122.079, 37.425],
[-122.085, 37.423],
]],
[[[-122.081, 37.417], [-122.086, 37.421], [-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 MultiPolygon object.
multipolygon_intersection = multipolygon.intersection(
right=input_geom, maxError=1
)
# Print the result.
display('multipolygon.intersection(...) =', multipolygon_intersection)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(
multipolygon, {'color': 'black'}, 'Geometry [black]: multipolygon'
)
m.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')
m.add_layer(
multipolygon_intersection,
{'color': 'red'},
'Result [red]: multipolygon.intersection',
)
m
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/07/26 (UTC).
[null,null,["Dernière mise à jour le 2025/07/26 (UTC)."],[[["\u003cp\u003e\u003ccode\u003eintersection\u003c/code\u003e returns a Geometry representing the shared area between a MultiPolygon and another Geometry.\u003c/p\u003e\n"],["\u003cp\u003eIt takes the \u003ccode\u003eright\u003c/code\u003e Geometry, optional \u003ccode\u003emaxError\u003c/code\u003e, and optional \u003ccode\u003eproj\u003c/code\u003e as arguments.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003emaxError\u003c/code\u003e parameter controls the tolerance for reprojection errors.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eproj\u003c/code\u003e parameter specifies the projection for the operation, defaulting to spherical coordinates if unspecified.\u003c/p\u003e\n"]]],["The `intersection` method computes the overlapping area between two geometries, returning a new geometry representing their intersection. It takes a `right` geometry as the second operand, and optionally `maxError` and `proj` parameters for error tolerance and projection. The operation can be performed in a spherical coordinate system or using a specified projection. Examples in Javascript and python are provided showing how to define geometries, call the `intersection` method, and display the results.\n"],null,["# ee.Geometry.MultiPolygon.intersection\n\nReturns the intersection of the two geometries.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-------------------------------------------------------------|----------|\n| MultiPolygon.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 MultiPolygon object.\nvar multiPolygon = ee.Geometry.MultiPolygon(\n [[[[-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423]]],\n [[[-122.081, 37.417],\n [-122.086, 37.421],\n [-122.089, 37.416]]]]);\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 MultiPolygon object.\nvar multiPolygonIntersection = multiPolygon.intersection({'right': inputGeom, 'maxError': 1});\n\n// Print the result to the console.\nprint('multiPolygon.intersection(...) =', multiPolygonIntersection);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiPolygon,\n {'color': 'black'},\n 'Geometry [black]: multiPolygon');\nMap.addLayer(inputGeom,\n {'color': 'blue'},\n 'Parameter [blue]: inputGeom');\nMap.addLayer(multiPolygonIntersection,\n {'color': 'red'},\n 'Result [red]: multiPolygon.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 MultiPolygon object.\nmultipolygon = ee.Geometry.MultiPolygon([\n [[\n [-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423],\n ]],\n [[[-122.081, 37.417], [-122.086, 37.421], [-122.089, 37.416]]],\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 MultiPolygon object.\nmultipolygon_intersection = multipolygon.intersection(\n right=input_geom, maxError=1\n)\n\n# Print the result.\ndisplay('multipolygon.intersection(...) =', multipolygon_intersection)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(\n multipolygon, {'color': 'black'}, 'Geometry [black]: multipolygon'\n)\nm.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')\nm.add_layer(\n multipolygon_intersection,\n {'color': 'red'},\n 'Result [red]: multipolygon.intersection',\n)\nm\n```"]]