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.MultiLineString.geodesic
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。
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 |
|---|
MultiLineString.geodesic() | 布尔值 |
示例
代码编辑器 (JavaScript)
// Define a MultiLineString object.
var multiLineString = ee.Geometry.MultiLineString(
[[[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],
[[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]]]);
// Apply the geodesic method to the MultiLineString object.
var multiLineStringGeodesic = multiLineString.geodesic();
// Print the result to the console.
print('multiLineString.geodesic(...) =', multiLineStringGeodesic);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiLineString,
{'color': 'black'},
'Geometry [black]: multiLineString');
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 MultiLineString object.
multilinestring = ee.Geometry.MultiLineString([
[[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],
[[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]],
])
# Apply the geodesic method to the MultiLineString object.
multilinestring_geodesic = multilinestring.geodesic()
# Print the result.
display('multilinestring.geodesic(...) =', multilinestring_geodesic)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(
multilinestring, {'color': 'black'}, 'Geometry [black]: multilinestring'
)
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\u003egeodesic()\u003c/code\u003e method determines whether edges of a MultiLineString are rendered as straight lines or curved to follow the Earth's curvature.\u003c/p\u003e\n"],["\u003cp\u003eIt returns \u003ccode\u003etrue\u003c/code\u003e if edges are curved (geodesic) and \u003ccode\u003efalse\u003c/code\u003e if they are straight.\u003c/p\u003e\n"],["\u003cp\u003eThis method can be applied to a MultiLineString object to control its visual representation on a map.\u003c/p\u003e\n"],["\u003cp\u003eThe method does not alter the underlying geometry; it only affects its display.\u003c/p\u003e\n"]]],["The `MultiLineString.geodesic()` method determines if edges in a projected `MultiLineString` are straight or curved. It returns a boolean value. When `true`, edges are curved, following the shortest path on Earth's surface; when `false`, edges are straight. The method accepts a `Geometry` object as its input, it is applied to a `MultiLineString` object, and is illustrated by a Javascript and Python code examples where a `MultiLineString` is created, the method applied, and the result printed.\n"],null,["# ee.Geometry.MultiLineString.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| MultiLineString.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 MultiLineString object.\nvar multiLineString = ee.Geometry.MultiLineString(\n [[[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],\n [[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]]]);\n\n// Apply the geodesic method to the MultiLineString object.\nvar multiLineStringGeodesic = multiLineString.geodesic();\n\n// Print the result to the console.\nprint('multiLineString.geodesic(...) =', multiLineStringGeodesic);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiLineString,\n {'color': 'black'},\n 'Geometry [black]: multiLineString');\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 MultiLineString object.\nmultilinestring = ee.Geometry.MultiLineString([\n [[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],\n [[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]],\n])\n\n# Apply the geodesic method to the MultiLineString object.\nmultilinestring_geodesic = multilinestring.geodesic()\n\n# Print the result.\ndisplay('multilinestring.geodesic(...) =', multilinestring_geodesic)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(\n multilinestring, {'color': 'black'}, 'Geometry [black]: multilinestring'\n)\nm\n```"]]
