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.Rectangle.symmetricDifference
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Menampilkan selisih simetris antara dua geometri.
Penggunaan | Hasil |
---|
Rectangle.symmetricDifference(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 Rectangle object.
var rectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43);
// Define other inputs.
var inputGeom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425);
// Apply the symmetricDifference method to the Rectangle object.
var rectangleSymmetricDifference = rectangle.symmetricDifference({'right': inputGeom, 'maxError': 1});
// Print the result to the console.
print('rectangle.symmetricDifference(...) =', rectangleSymmetricDifference);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(rectangle,
{'color': 'black'},
'Geometry [black]: rectangle');
Map.addLayer(inputGeom,
{'color': 'blue'},
'Parameter [blue]: inputGeom');
Map.addLayer(rectangleSymmetricDifference,
{'color': 'red'},
'Result [red]: rectangle.symmetricDifference');
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 Rectangle object.
rectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43)
# Define other inputs.
input_geom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425)
# Apply the symmetricDifference method to the Rectangle object.
rectangle_symmetric_difference = rectangle.symmetricDifference(
right=input_geom, maxError=1
)
# Print the result.
display('rectangle.symmetricDifference(...) =', rectangle_symmetric_difference)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(rectangle, {'color': 'black'}, 'Geometry [black]: rectangle')
m.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')
m.add_layer(
rectangle_symmetric_difference,
{'color': 'red'},
'Result [red]: rectangle.symmetricDifference',
)
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\u003esymmetricDifference()\u003c/code\u003e returns a Geometry representing the parts of two geometries that do not intersect.\u003c/p\u003e\n"],["\u003cp\u003eIt takes a Geometry as the \u003ccode\u003eright\u003c/code\u003e operand and optional \u003ccode\u003emaxError\u003c/code\u003e and \u003ccode\u003eproj\u003c/code\u003e parameters for reprojection control.\u003c/p\u003e\n"],["\u003cp\u003eThe result includes areas of the \u003ccode\u003eleft\u003c/code\u003e (calling) Geometry and the \u003ccode\u003eright\u003c/code\u003e Geometry that are not shared by both.\u003c/p\u003e\n"],["\u003cp\u003eThis operation is useful for isolating unique regions of two overlapping or adjacent geometries.\u003c/p\u003e\n"]]],[],null,["# ee.Geometry.Rectangle.symmetricDifference\n\nReturns the symmetric difference between two geometries.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------------------------------------------|----------|\n| Rectangle.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 Rectangle object.\nvar rectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43);\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 Rectangle object.\nvar rectangleSymmetricDifference = rectangle.symmetricDifference({'right': inputGeom, 'maxError': 1});\n\n// Print the result to the console.\nprint('rectangle.symmetricDifference(...) =', rectangleSymmetricDifference);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(rectangle,\n {'color': 'black'},\n 'Geometry [black]: rectangle');\nMap.addLayer(inputGeom,\n {'color': 'blue'},\n 'Parameter [blue]: inputGeom');\nMap.addLayer(rectangleSymmetricDifference,\n {'color': 'red'},\n 'Result [red]: rectangle.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 Rectangle object.\nrectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43)\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 Rectangle object.\nrectangle_symmetric_difference = rectangle.symmetricDifference(\n right=input_geom, maxError=1\n)\n\n# Print the result.\ndisplay('rectangle.symmetricDifference(...) =', rectangle_symmetric_difference)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(rectangle, {'color': 'black'}, 'Geometry [black]: rectangle')\nm.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')\nm.add_layer(\n rectangle_symmetric_difference,\n {'color': 'red'},\n 'Result [red]: rectangle.symmetricDifference',\n)\nm\n```"]]