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ee.Geometry.edgesAreGeodesics
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。
如果几何图形的边（如果有）是地球球面模型上的测地线，则返回 true；如果为 false，则任何边都是投影中的直线。
| 用法 | 返回 |
|---|
Geometry.edgesAreGeodesics() | 布尔值 |
示例
代码编辑器 (JavaScript)
// Define a Geometry object.
var geometry = ee.Geometry({
'type': 'Polygon',
'coordinates':
[[[-122.081, 37.417],
[-122.086, 37.421],
[-122.084, 37.418],
[-122.089, 37.416]]]
});
// Apply the edgesAreGeodesics method to the Geometry object.
var geometryEdgesAreGeodesics = geometry.edgesAreGeodesics();
// Print the result to the console.
print('geometry.edgesAreGeodesics(...) =', geometryEdgesAreGeodesics);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(geometry,
{'color': 'black'},
'Geometry [black]: geometry');
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 Geometry object.
geometry = ee.Geometry({
'type': 'Polygon',
'coordinates': [[
[-122.081, 37.417],
[-122.086, 37.421],
[-122.084, 37.418],
[-122.089, 37.416],
]],
})
# Apply the edgesAreGeodesics method to the Geometry object.
geometry_edges_are_geodesics = geometry.edgesAreGeodesics()
# Print the result.
display('geometry.edgesAreGeodesics(...) =', geometry_edges_are_geodesics)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(geometry, {'color': 'black'}, 'Geometry [black]: geometry')
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\u003eThis function, \u003ccode\u003eedgesAreGeodesics()\u003c/code\u003e, determines if the edges of a geometry are treated as geodesics (curved lines following the Earth's curvature) or straight lines in the projection.\u003c/p\u003e\n"],["\u003cp\u003eIt returns \u003ccode\u003etrue\u003c/code\u003e if the edges are geodesics, indicating they follow the Earth's curvature, and \u003ccode\u003efalse\u003c/code\u003e if they are straight lines.\u003c/p\u003e\n"],["\u003cp\u003eThe function is applied to a Geometry object and returns a boolean value.\u003c/p\u003e\n"],["\u003cp\u003eIt's useful for understanding how the geometry's edges are interpreted in calculations and visualizations on the Earth's surface.\u003c/p\u003e\n"]]],["The `edgesAreGeodesics()` method, applied to a Geometry object, determines if the geometry's edges follow geodesics on a spherical earth model. It returns a boolean value: `true` if edges are geodesics, `false` if they are straight lines in the projection. The provided examples demonstrate creating a polygon Geometry and then checking its edge type. The result is printed to the console. A map shows the Geometry for visualization.\n"],null,["# ee.Geometry.edgesAreGeodesics\n\nReturns true if the geometry edges, if any, are geodesics along a spherical model of the earth; if false, any edges are straight lines in the projection.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|--------------------------------|---------|\n| Geometry.edgesAreGeodesics`()` | 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 Geometry object.\nvar geometry = ee.Geometry({\n 'type': 'Polygon',\n 'coordinates':\n [[[-122.081, 37.417],\n [-122.086, 37.421],\n [-122.084, 37.418],\n [-122.089, 37.416]]]\n});\n\n// Apply the edgesAreGeodesics method to the Geometry object.\nvar geometryEdgesAreGeodesics = geometry.edgesAreGeodesics();\n\n// Print the result to the console.\nprint('geometry.edgesAreGeodesics(...) =', geometryEdgesAreGeodesics);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(geometry,\n {'color': 'black'},\n 'Geometry [black]: geometry');\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 Geometry object.\ngeometry = ee.Geometry({\n 'type': 'Polygon',\n 'coordinates': [[\n [-122.081, 37.417],\n [-122.086, 37.421],\n [-122.084, 37.418],\n [-122.089, 37.416],\n ]],\n})\n\n# Apply the edgesAreGeodesics method to the Geometry object.\ngeometry_edges_are_geodesics = geometry.edgesAreGeodesics()\n\n# Print the result.\ndisplay('geometry.edgesAreGeodesics(...) =', geometry_edges_are_geodesics)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(geometry, {'color': 'black'}, 'Geometry [black]: geometry')\nm\n```"]]
