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2025 年 4 月 15 日より前に Earth Engine の使用を登録したすべての非商用プロジェクトは、Earth Engine へのアクセスを維持するために
非商用目的での利用資格を確認する必要があります。
ee.Geometry.Polygon.projection
コレクションでコンテンツを整理
必要に応じて、コンテンツの保存と分類を行います。
ジオメトリの投影を返します。
| 用途 | 戻り値 |
|---|
Polygon.projection() | 予測 |
例
コードエディタ（JavaScript）
// Define a Polygon object.
var polygon = ee.Geometry.Polygon(
[[[-122.092, 37.424],
[-122.086, 37.418],
[-122.079, 37.425],
[-122.085, 37.423]]]);
// Apply the projection method to the Polygon object.
var polygonProjection = polygon.projection();
// Print the result to the console.
print('polygon.projection(...) =', polygonProjection);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(polygon,
{'color': 'black'},
'Geometry [black]: polygon');
Python の設定
Python API とインタラクティブな開発での geemap の使用については、
Python 環境のページをご覧ください。
import ee
import geemap.core as geemap
Colab（Python）
# Define a Polygon object.
polygon = ee.Geometry.Polygon([[
[-122.092, 37.424],
[-122.086, 37.418],
[-122.079, 37.425],
[-122.085, 37.423],
]])
# Apply the projection method to the Polygon object.
polygon_projection = polygon.projection()
# Print the result.
display('polygon.projection(...) =', polygon_projection)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(polygon, {'color': 'black'}, 'Geometry [black]: polygon')
m
特に記載のない限り、このページのコンテンツはクリエイティブ・コモンズの表示 4.0 ライセンスにより使用許諾されます。コードサンプルは Apache 2.0 ライセンスにより使用許諾されます。詳しくは、Google Developers サイトのポリシーをご覧ください。Java は Oracle および関連会社の登録商標です。
最終更新日 2025-07-26 UTC。
[null,null,["最終更新日 2025-07-26 UTC。"],[[["\u003cp\u003eThe \u003ccode\u003eprojection()\u003c/code\u003e method returns the projection of a given geometry, such as a polygon.\u003c/p\u003e\n"],["\u003cp\u003eIt can be accessed using \u003ccode\u003epolygon.projection()\u003c/code\u003e, where 'polygon' is the geometry object.\u003c/p\u003e\n"],["\u003cp\u003eThe returned value is a Projection object representing the geometry's projection.\u003c/p\u003e\n"],["\u003cp\u003eExamples are provided in JavaScript and Python demonstrating how to utilize this method.\u003c/p\u003e\n"]]],["The `projection()` method is applied to a `Polygon` object to retrieve its projection. The method takes a `Geometry` object as input and returns a `Projection`. In the JavaScript example, a polygon is defined, the method is used, and the projection is printed. The Python example mirrors this, defining a polygon, applying the method, displaying the projection, and visualizing the polygon on a map using `geemap`. The examples in both langages return the projection of the given geometry object.\n"],null,["# ee.Geometry.Polygon.projection\n\nReturns the projection of the geometry.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------|------------|\n| Polygon.projection`()` | Projection |\n\n| Argument | Type | Details |\n|------------------|----------|---------|\n| this: `geometry` | Geometry | |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a Polygon object.\nvar polygon = ee.Geometry.Polygon(\n [[[-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423]]]);\n\n// Apply the projection method to the Polygon object.\nvar polygonProjection = polygon.projection();\n\n// Print the result to the console.\nprint('polygon.projection(...) =', polygonProjection);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(polygon,\n {'color': 'black'},\n 'Geometry [black]: polygon');\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 Polygon object.\npolygon = ee.Geometry.Polygon([[\n [-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423],\n]])\n\n# Apply the projection method to the Polygon object.\npolygon_projection = polygon.projection()\n\n# Print the result.\ndisplay('polygon.projection(...) =', polygon_projection)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(polygon, {'color': 'black'}, 'Geometry [black]: polygon')\nm\n```"]]
