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.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。"],[],["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,[]]