ee.Geometry.MultiPolygon.geodesic

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
MultiPolygon.geodesic()布尔值
参数类型详细信息
此：geometry几何图形

示例

代码编辑器 (JavaScript)

// Define a MultiPolygon object.
var multiPolygon = ee.Geometry.MultiPolygon(
    [[[[-122.092, 37.424],
       [-122.086, 37.418],
       [-122.079, 37.425],
       [-122.085, 37.423]]],
     [[[-122.081, 37.417],
       [-122.086, 37.421],
       [-122.089, 37.416]]]]);

// Apply the geodesic method to the MultiPolygon object.
var multiPolygonGeodesic = multiPolygon.geodesic();

// Print the result to the console.
print('multiPolygon.geodesic(...) =', multiPolygonGeodesic);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPolygon,
             {'color': 'black'},
             'Geometry [black]: multiPolygon');

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 MultiPolygon object.
multipolygon = ee.Geometry.MultiPolygon([
    [[
        [-122.092, 37.424],
        [-122.086, 37.418],
        [-122.079, 37.425],
        [-122.085, 37.423],
    ]],
    [[[-122.081, 37.417], [-122.086, 37.421], [-122.089, 37.416]]],
])

# Apply the geodesic method to the MultiPolygon object.
multipolygon_geodesic = multipolygon.geodesic()

# Print the result.
display('multipolygon.geodesic(...) =', multipolygon_geodesic)

# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(
    multipolygon, {'color': 'black'}, 'Geometry [black]: multipolygon'
)
m