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ee.Geometry.LineString.toGeoJSON
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 GeoJSON 表示形式。
| 用法 | 返回 |
|---|
LineString.toGeoJSON() | GeoJSONGeometry |
| 参数 | 类型 | 详细信息 |
|---|
此：geometry | 几何图形 | Geometry 实例。 |
示例
代码编辑器 (JavaScript)
// Define a LineString object.
var lineString = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]]);
// Apply the toGeoJSON method to the LineString object.
var lineStringToGeoJSON = lineString.toGeoJSON();
// Print the result to the console.
print('lineString.toGeoJSON(...) =', lineStringToGeoJSON);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(lineString,
{'color': 'black'},
'Geometry [black]: lineString');
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 LineString object.
linestring = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]])
# Apply the toGeoJSON method to the LineString object.
linestring_to_geojson = linestring.toGeoJSON()
# Print the result.
display('linestring.toGeoJSON(...) =', linestring_to_geojson)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(linestring, {'color': 'black'}, 'Geometry [black]: linestring')
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\u003etoGeoJSON()\u003c/code\u003e function returns a GeoJSON representation of a given Earth Engine geometry, such as a LineString.\u003c/p\u003e\n"],["\u003cp\u003eThis function can be used with any Earth Engine Geometry object, and it takes no arguments besides the Geometry instance itself.\u003c/p\u003e\n"],["\u003cp\u003eExamples are provided in both JavaScript and Python (using \u003ccode\u003egeemap\u003c/code\u003e) to showcase the function's usage and display the resulting GeoJSON.\u003c/p\u003e\n"]]],["The `toGeoJSON()` method converts a geometry instance into a GeoJSON representation. It's applicable to a `LineString` object, as demonstrated in both JavaScript and Python examples. The code defines a `LineString` using coordinates, applies `toGeoJSON()`, and outputs the result. Both examples also display the original `LineString` on a map. The method takes one argument: `geometry` as an instance of `Geometry`. It returns a `GeoJSONGeometry` object.\n"],null,["# ee.Geometry.LineString.toGeoJSON\n\n\u003cbr /\u003e\n\nReturns a GeoJSON representation of the geometry.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|--------------------------|-----------------|\n| LineString.toGeoJSON`()` | GeoJSONGeometry |\n\n| Argument | Type | Details |\n|------------------|----------|------------------------|\n| this: `geometry` | Geometry | The Geometry instance. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a LineString object.\nvar lineString = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]]);\n\n// Apply the toGeoJSON method to the LineString object.\nvar lineStringToGeoJSON = lineString.toGeoJSON();\n\n// Print the result to the console.\nprint('lineString.toGeoJSON(...) =', lineStringToGeoJSON);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(lineString,\n {'color': 'black'},\n 'Geometry [black]: lineString');\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 LineString object.\nlinestring = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]])\n\n# Apply the toGeoJSON method to the LineString object.\nlinestring_to_geojson = linestring.toGeoJSON()\n\n# Print the result.\ndisplay('linestring.toGeoJSON(...) =', linestring_to_geojson)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(linestring, {'color': 'black'}, 'Geometry [black]: linestring')\nm\n```"]]
