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ee.Geometry.MultiPolygon.projection
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
返回几何图形的投影。
| 用法 | 返回 |
|---|
MultiPolygon.projection() | 投影 |
示例
代码编辑器 (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]]]]);
// Apply the projection method to the MultiPolygon object.
var multiPolygonProjection = multiPolygon.projection();
// Print the result to the console.
print('multiPolygon.projection(...) =', multiPolygonProjection);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPolygon,
{'color': 'black'},
'Geometry [black]: multiPolygon');
Python 设置
如需了解 Python API 和如何使用 geemap 进行交互式开发，请参阅
Python 环境页面。
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]]],
])
# Apply the projection method to the MultiPolygon object.
multipolygon_projection = multipolygon.projection()
# Print the result.
display('multipolygon.projection(...) =', multipolygon_projection)
# 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
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-26。
[null,null,["最后更新时间 (UTC)：2025-07-26。"],[[["\u003cp\u003eThe \u003ccode\u003eprojection()\u003c/code\u003e method returns the projection of a given geometry, specifically a MultiPolygon in this case.\u003c/p\u003e\n"],["\u003cp\u003eIt takes a geometry object as input and returns a Projection object representing its coordinate system.\u003c/p\u003e\n"],["\u003cp\u003eThe provided code examples demonstrate how to use the \u003ccode\u003eprojection()\u003c/code\u003e method in JavaScript and Python to obtain the projection of a MultiPolygon.\u003c/p\u003e\n"],["\u003cp\u003eYou can use the returned Projection object for further analysis or to reproject the geometry into a different coordinate system.\u003c/p\u003e\n"]]],[],null,["# ee.Geometry.MultiPolygon.projection\n\nReturns the projection of the geometry.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------|------------|\n| MultiPolygon.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 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// Apply the projection method to the MultiPolygon object.\nvar multiPolygonProjection = multiPolygon.projection();\n\n// Print the result to the console.\nprint('multiPolygon.projection(...) =', multiPolygonProjection);\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');\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# Apply the projection method to the MultiPolygon object.\nmultipolygon_projection = multipolygon.projection()\n\n# Print the result.\ndisplay('multipolygon.projection(...) =', multipolygon_projection)\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\n```"]]
