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ee.Geometry.MultiPoint.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 |
|---|
MultiPoint.projection() | 投影 |
示例
代码编辑器 (JavaScript)
// Define a MultiPoint object.
var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);
// Apply the projection method to the MultiPoint object.
var multiPointProjection = multiPoint.projection();
// Print the result to the console.
print('multiPoint.projection(...) =', multiPointProjection);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPoint,
{'color': 'black'},
'Geometry [black]: multiPoint');
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 MultiPoint object.
multipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])
# Apply the projection method to the MultiPoint object.
multipoint_projection = multipoint.projection()
# Print the result.
display('multipoint.projection(...) =', multipoint_projection)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint')
m
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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 MultiPoint in this case.\u003c/p\u003e\n"],["\u003cp\u003eThis method is useful for obtaining the coordinate reference system (CRS) information associated with the geometry.\u003c/p\u003e\n"],["\u003cp\u003eUsage involves calling \u003ccode\u003eprojection()\u003c/code\u003e on a geometry object, like a MultiPoint, which returns a Projection object.\u003c/p\u003e\n"],["\u003cp\u003eExample code snippets demonstrate using \u003ccode\u003eprojection()\u003c/code\u003e in both JavaScript and Python within the Earth Engine environment.\u003c/p\u003e\n"]]],["The `projection()` method is applied to a `MultiPoint` geometry object to retrieve its projection. This method requires a `Geometry` object as an argument. In both JavaScript and Python examples, a `MultiPoint` is created. Subsequently, `projection()` is called on it, storing the returned `Projection`. The code then prints the `Projection`. Finally, a map is centered and a layer is added, visualizing the `MultiPoint` geometry. The result type for the function is a `Projection`.\n"],null,["# ee.Geometry.MultiPoint.projection\n\nReturns the projection of the geometry.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------------------|------------|\n| MultiPoint.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 MultiPoint object.\nvar multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);\n\n// Apply the projection method to the MultiPoint object.\nvar multiPointProjection = multiPoint.projection();\n\n// Print the result to the console.\nprint('multiPoint.projection(...) =', multiPointProjection);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiPoint,\n {'color': 'black'},\n 'Geometry [black]: multiPoint');\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 MultiPoint object.\nmultipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])\n\n# Apply the projection method to the MultiPoint object.\nmultipoint_projection = multipoint.projection()\n\n# Print the result.\ndisplay('multipoint.projection(...) =', multipoint_projection)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint')\nm\n```"]]
