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ee.Geometry.LineString.geodesic
使用集合让一切井井有条
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如果为 false，则投影中的边缘是直的。如果为 true，则边会弯曲，以遵循地球表面的最短路径。
| 用法 | 返回 |
|---|
LineString.geodesic() | 布尔值 |
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 geodesic method to the LineString object.
var lineStringGeodesic = lineString.geodesic();
// Print the result to the console.
print('lineString.geodesic(...) =', lineStringGeodesic);
// 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 geodesic method to the LineString object.
linestring_geodesic = linestring.geodesic()
# Print the result.
display('linestring.geodesic(...) =', linestring_geodesic)
# 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\u003e\u003ccode\u003eLineString.geodesic()\u003c/code\u003e is a method in Earth Engine that determines whether a LineString's edges are rendered as straight or curved on the Earth's surface.\u003c/p\u003e\n"],["\u003cp\u003eIt returns \u003ccode\u003etrue\u003c/code\u003e if the edges follow the shortest path on the Earth's surface (geodesic) and \u003ccode\u003efalse\u003c/code\u003e if they are rendered as straight lines.\u003c/p\u003e\n"],["\u003cp\u003eThis method is applicable to LineString geometry objects and can be used to visually represent lines more accurately on a map, especially over long distances.\u003c/p\u003e\n"]]],[],null,["# ee.Geometry.LineString.geodesic\n\nIf false, edges are straight in the projection. If true, edges are curved to follow the shortest path on the surface of the Earth.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-------------------------|---------|\n| LineString.geodesic`()` | Boolean |\n\n| Argument | Type | Details |\n|------------------|----------|---------|\n| this: `geometry` | Geometry | |\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 geodesic method to the LineString object.\nvar lineStringGeodesic = lineString.geodesic();\n\n// Print the result to the console.\nprint('lineString.geodesic(...) =', lineStringGeodesic);\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 geodesic method to the LineString object.\nlinestring_geodesic = linestring.geodesic()\n\n# Print the result.\ndisplay('linestring.geodesic(...) =', linestring_geodesic)\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```"]]
