Pengumuman: Semua project nonkomersial yang terdaftar untuk menggunakan Earth Engine sebelum
15 April 2025 harus
memverifikasi kelayakan nonkomersial untuk mempertahankan akses Earth Engine.
ee.Feature
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Fitur dapat dibuat dari salah satu argumen berikut ditambah kamus properti opsional:
- ee.Geometry.
- Geometri GeoJSON.
- Fitur GeoJSON.
- Objek yang dihitung: ditafsirkan ulang sebagai geometri jika properti ditentukan, dan sebagai fitur jika tidak.
| Penggunaan | Hasil |
|---|
ee.Feature(geometry, properties) | Fitur |
| Argumen | Jenis | Detail |
|---|
geometry | ComputedObject|Feature|Geometry|Object | Geometri atau fitur. |
properties | Objek, opsional | Kamus properti metadata. Jika parameter pertama adalah Fitur (bukan geometri), parameter ini tidak digunakan. |
Contoh
Code Editor (JavaScript)
// Create the simplest possible feature.
print(ee.Feature(null)); // Empty feature
// Demonstrate how to set a feature's id.
print(ee.Feature(null, {'id': 'yada'}).id()); // null
print(ee.Feature(null, {'system:index': 'abc123'}).id()); // abc123
// The simplest possible feature with a geometry.
var feature = ee.Feature(ee.Geometry.Point([-114.318, 38.985]));
Map.addLayer(feature);
Map.centerObject(feature, 10);
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)
# Create the simplest possible feature.
display(ee.Feature(None)) # Empty feature
# Demonstrate how to set a feature's id.
display(ee.Feature(None, {'id': 'yada'}).id()) # None
display(ee.Feature(None, {'system:index': 'abc123'}).id()) # abc123
# The simplest possible feature with a geometry.
feature = ee.Feature(ee.Geometry.Point([-114.318, 38.985]))
m = geemap.Map()
m.add_layer(feature)
m.center_object(feature, 10)
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\u003eee.Feature\u003c/code\u003e objects represent geographic features with geometry and properties, and can be constructed from geometries, GeoJSON, or computed objects.\u003c/p\u003e\n"],["\u003cp\u003eFeatures can have an optional dictionary of properties to store metadata.\u003c/p\u003e\n"],["\u003cp\u003eFeature IDs are determined by the \u003ccode\u003esystem:index\u003c/code\u003e property, if present, or by the \u003ccode\u003eid\u003c/code\u003e property as a fallback.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eee.Feature\u003c/code\u003e constructor provides a flexible way to create features with or without geometries and associated properties within Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eSimple features can be visualized on a map using \u003ccode\u003eMap.addLayer\u003c/code\u003e and \u003ccode\u003eMap.centerObject\u003c/code\u003e in JavaScript or similar functions in Python using \u003ccode\u003egeemap\u003c/code\u003e.\u003c/p\u003e\n"]]],["Features are created using a geometry (ee.Geometry, GeoJSON Geometry, or GeoJSON Feature) or a computed object, along with an optional dictionary of properties. `ee.Feature(geometry, properties)` creates a Feature. The `geometry` argument can be a geometry or another feature. The optional `properties` argument is a metadata dictionary; it's unused if the first argument is already a feature. A feature can be created without a geometry and an `id` or a `system:index` can be set.\n"],null,["# ee.Feature\n\n\u003cbr /\u003e\n\nFeatures can be constructed from one of the following arguments plus an optional dictionary of properties:\n\n\u003cbr /\u003e\n\n- An ee.Geometry.\n\n- A GeoJSON Geometry.\n\n- A GeoJSON Feature.\n\n- A computed object: reinterpreted as a geometry if properties are specified, and as a feature if they aren't.\n\n| Usage | Returns |\n|----------------------------------------|---------|\n| `ee.Feature(geometry, `*properties*`)` | Feature |\n\n| Argument | Type | Details |\n|--------------|-------------------------------------------|-------------------------------------------------------------------------------------------------------------------|\n| `geometry` | ComputedObject\\|Feature\\|Geometry\\|Object | A geometry or feature. |\n| `properties` | Object, optional | A dictionary of metadata properties. If the first parameter is a Feature (instead of a geometry), this is unused. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Create the simplest possible feature.\nprint(ee.Feature(null)); // Empty feature\n\n// Demonstrate how to set a feature's id.\nprint(ee.Feature(null, {'id': 'yada'}).id()); // null\nprint(ee.Feature(null, {'system:index': 'abc123'}).id()); // abc123\n\n// The simplest possible feature with a geometry.\nvar feature = ee.Feature(ee.Geometry.Point([-114.318, 38.985]));\nMap.addLayer(feature);\nMap.centerObject(feature, 10);\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# Create the simplest possible feature.\ndisplay(ee.Feature(None)) # Empty feature\n\n# Demonstrate how to set a feature's id.\ndisplay(ee.Feature(None, {'id': 'yada'}).id()) # None\ndisplay(ee.Feature(None, {'system:index': 'abc123'}).id()) # abc123\n\n# The simplest possible feature with a geometry.\nfeature = ee.Feature(ee.Geometry.Point([-114.318, 38.985]))\nm = geemap.Map()\nm.add_layer(feature)\nm.center_object(feature, 10)\nm\n```"]]
