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ee.FeatureCollection.sort
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。
按指定属性对集合进行排序。
返回已排序的集合。
用法 | 返回 |
---|
FeatureCollection.sort(property, ascending) | 集合 |
参数 | 类型 | 详细信息 |
---|
此:collection | 集合 | Collection 实例。 |
property | 字符串 | 要排序的属性。 |
ascending | 布尔值,可选 | 是按升序还是降序排序。默认值为 true(升序)。 |
示例
代码编辑器 (JavaScript)
// FeatureCollection of power plants in Belgium.
var fc = ee.FeatureCollection('WRI/GPPD/power_plants')
.filter('country_lg == "Belgium"');
print('Belgium power plants in ascending order by capacity',
fc.sort('capacitymw'));
print('Belgium power plants in descending order by capacity',
fc.sort('capacitymw', false));
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)
# FeatureCollection of power plants in Belgium.
fc = ee.FeatureCollection('WRI/GPPD/power_plants').filter(
'country_lg == "Belgium"')
print('Belgium power plants in ascending order by capacity:',
fc.sort('capacitymw').getInfo())
print('Belgium power plants in descending order by capacity:',
fc.sort('capacitymw', False).getInfo())
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\u003esort()\u003c/code\u003e method allows you to order a FeatureCollection based on the values of a specified property.\u003c/p\u003e\n"],["\u003cp\u003eIt takes the property name as a required argument and an optional boolean argument (\u003ccode\u003eascending\u003c/code\u003e) to control the sort direction (ascending by default).\u003c/p\u003e\n"],["\u003cp\u003eThe method returns a new, sorted FeatureCollection without modifying the original.\u003c/p\u003e\n"],["\u003cp\u003eExamples demonstrate sorting power plants by capacity in both ascending and descending order.\u003c/p\u003e\n"]]],["The `sort` method arranges a collection by a given property. It takes the property name (string) as a required argument and an optional boolean `ascending` (defaulting to `true`) to specify the sort order. The method returns the sorted collection. Examples demonstrate sorting a FeatureCollection of Belgian power plants by 'capacitymw' in both ascending and descending order. The method works both in javascript and Python.\n"],null,["# ee.FeatureCollection.sort\n\n\u003cbr /\u003e\n\nSort a collection by the specified property.\n\n\u003cbr /\u003e\n\nReturns the sorted collection.\n\n| Usage | Returns |\n|---------------------------------------------------|------------|\n| FeatureCollection.sort`(property, `*ascending*`)` | Collection |\n\n| Argument | Type | Details |\n|--------------------|-------------------|------------------------------------------------------------------------------------|\n| this: `collection` | Collection | The Collection instance. |\n| `property` | String | The property to sort by. |\n| `ascending` | Boolean, optional | Whether to sort in ascending or descending order. The default is true (ascending). |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// FeatureCollection of power plants in Belgium.\nvar fc = ee.FeatureCollection('WRI/GPPD/power_plants')\n .filter('country_lg == \"Belgium\"');\n\nprint('Belgium power plants in ascending order by capacity',\n fc.sort('capacitymw'));\n\nprint('Belgium power plants in descending order by capacity',\n fc.sort('capacitymw', false));\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# FeatureCollection of power plants in Belgium.\nfc = ee.FeatureCollection('WRI/GPPD/power_plants').filter(\n 'country_lg == \"Belgium\"')\n\nprint('Belgium power plants in ascending order by capacity:',\n fc.sort('capacitymw').getInfo())\n\nprint('Belgium power plants in descending order by capacity:',\n fc.sort('capacitymw', False).getInfo())\n```"]]