Pengumuman: Semua project nonkomersial yang terdaftar untuk menggunakan Earth Engine sebelum
15 April 2025 harus
memverifikasi kelayakan nonkomersial untuk mempertahankan akses Earth Engine.
ee.Geometry.MultiPolygon.intersection
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Menampilkan titik potong kedua geometri.
Penggunaan | Hasil |
---|
MultiPolygon.intersection(right, maxError, proj) | Geometri |
Argumen | Jenis | Detail |
---|
ini: left | Geometri | Geometri yang digunakan sebagai operand kiri operasi. |
right | Geometri | Geometri yang digunakan sebagai operand kanan operasi. |
maxError | ErrorMargin, default: null | Jumlah maksimum error yang dapat ditoleransi saat melakukan reproyeksi yang diperlukan. |
proj | Proyeksi, default: null | Proyeksi tempat operasi akan dilakukan. Jika tidak ditentukan, operasi akan dilakukan dalam sistem koordinat bola, dan jarak linear akan dalam meter di bola. |
Contoh
Code Editor (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');
Penyiapan Python
Lihat halaman
Lingkungan Python untuk mengetahui informasi tentang Python API dan penggunaan
geemap
untuk pengembangan interaktif.
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
Kecuali dinyatakan lain, konten di halaman ini dilisensikan berdasarkan Lisensi Creative Commons Attribution 4.0, sedangkan contoh kode dilisensikan berdasarkan Lisensi Apache 2.0. Untuk mengetahui informasi selengkapnya, lihat Kebijakan Situs Google Developers. Java adalah merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-26 UTC.
[null,null,["Terakhir diperbarui pada 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```"]]