ee.Geometry.Polygon.edgesAreGeodesics

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
Polygon.edgesAreGeodesics()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 Polygon object.
var polygon = ee.Geometry.Polygon(
    [[[-122.092, 37.424],
      [-122.086, 37.418],
      [-122.079, 37.425],
      [-122.085, 37.423]]]);

// Apply the edgesAreGeodesics method to the Polygon object.
var polygonEdgesAreGeodesics = polygon.edgesAreGeodesics();

// Print the result to the console.
print('polygon.edgesAreGeodesics(...) =', polygonEdgesAreGeodesics);

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

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 Polygon object.
polygon = ee.Geometry.Polygon([[
    [-122.092, 37.424],
    [-122.086, 37.418],
    [-122.079, 37.425],
    [-122.085, 37.423],
]])

# Apply the edgesAreGeodesics method to the Polygon object.
polygon_edges_are_geodesics = polygon.edgesAreGeodesics()

# Print the result.
display('polygon.edgesAreGeodesics(...) =', polygon_edges_are_geodesics)

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