公告：所有在
2025 年 4 月 15 日之前注册使用 Earth Engine 的非商业项目都必须
验证是否符合非商业性质的资格条件，才能继续使用 Earth Engine。
ee.Geometry.BBox.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。
示例
代码编辑器 (JavaScript)
// Define a BBox object.
var bBox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43);
// Apply the projection method to the BBox object.
var bBoxProjection = bBox.projection();
// Print the result to the console.
print('bBox.projection(...) =', bBoxProjection);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(bBox,
{'color': 'black'},
'Geometry [black]: bBox');
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 BBox object.
bbox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43)
# Apply the projection method to the BBox object.
bbox_projection = bbox.projection()
# Print the result.
display('bbox.projection(...) =', bbox_projection)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(bbox, {'color': 'black'}, 'Geometry [black]: bbox')
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 BBox (bounding box).\u003c/p\u003e\n"],["\u003cp\u003eIt can be accessed using \u003ccode\u003eBBox.projection()\u003c/code\u003e and returns a Projection object.\u003c/p\u003e\n"],["\u003cp\u003eThe method is applicable to Geometry objects within the Earth Engine code editor, using both JavaScript and Python.\u003c/p\u003e\n"],["\u003cp\u003eExamples are provided demonstrating its use with a BBox object, displaying the projection and visualizing it on a map.\u003c/p\u003e\n"]]],["The `projection()` method is applied to a `Geometry` object, specifically a `BBox` in the examples, to retrieve its projection. A `BBox` is defined using coordinates, and the method returns the projection. The examples demonstrate this in both JavaScript and Python, showcasing how to define a `BBox`, apply the method, print the resulting projection, and display the geometry on a map.\n"],null,["# ee.Geometry.BBox.projection\n\nReturns the projection of the geometry.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------------|------------|\n| BBox.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 BBox object.\nvar bBox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43);\n\n// Apply the projection method to the BBox object.\nvar bBoxProjection = bBox.projection();\n\n// Print the result to the console.\nprint('bBox.projection(...) =', bBoxProjection);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(bBox,\n {'color': 'black'},\n 'Geometry [black]: bBox');\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 BBox object.\nbbox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43)\n\n# Apply the projection method to the BBox object.\nbbox_projection = bbox.projection()\n\n# Print the result.\ndisplay('bbox.projection(...) =', bbox_projection)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(bbox, {'color': 'black'}, 'Geometry [black]: bbox')\nm\n```"]]
