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ee.Geometry.Point.geodesic
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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。
示例
代码编辑器 (JavaScript)
// Define a Point object.
var point = ee.Geometry.Point(-122.082, 37.42);
// Apply the geodesic method to the Point object.
var pointGeodesic = point.geodesic();
// Print the result to the console.
print('point.geodesic(...) =', pointGeodesic);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(point,
{'color': 'black'},
'Geometry [black]: point');
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 Point object.
point = ee.Geometry.Point(-122.082, 37.42)
# Apply the geodesic method to the Point object.
point_geodesic = point.geodesic()
# Print the result.
display('point.geodesic(...) =', point_geodesic)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(point, {'color': 'black'}, 'Geometry [black]: point')
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\u003eThe \u003ccode\u003egeodesic()\u003c/code\u003e method, available for Point geometries in Earth Engine, determines whether edges are rendered as straight lines or curved to follow the Earth's curvature.\u003c/p\u003e\n"],["\u003cp\u003eIt returns a boolean value: \u003ccode\u003etrue\u003c/code\u003e for curved (geodesic) edges and \u003ccode\u003efalse\u003c/code\u003e for straight edges in projections.\u003c/p\u003e\n"],["\u003cp\u003eUsage involves calling the method on a Point object (\u003ccode\u003epoint.geodesic()\u003c/code\u003e), which inherently defaults to \u003ccode\u003efalse\u003c/code\u003e unless otherwise specified.\u003c/p\u003e\n"],["\u003cp\u003eProvided examples showcase the implementation of this method in both JavaScript and Python environments within the Earth Engine Code Editor and Google Colab.\u003c/p\u003e\n"]]],["The `geodesic()` method, applicable to a `Point` geometry, determines if edges in a projection are straight or curved. It returns a boolean value. When `false`, edges are straight; when `true`, they curve, following the shortest path on Earth's surface. The examples define a `Point` object, apply the `geodesic()` method, and display the `Point` geometry on a map. The `geodesic` result is also output. The code is illustrated in both JavaScript and Python.\n"],null,["# ee.Geometry.Point.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| Point.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 Point object.\nvar point = ee.Geometry.Point(-122.082, 37.42);\n\n// Apply the geodesic method to the Point object.\nvar pointGeodesic = point.geodesic();\n\n// Print the result to the console.\nprint('point.geodesic(...) =', pointGeodesic);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(point,\n {'color': 'black'},\n 'Geometry [black]: point');\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 Point object.\npoint = ee.Geometry.Point(-122.082, 37.42)\n\n# Apply the geodesic method to the Point object.\npoint_geodesic = point.geodesic()\n\n# Print the result.\ndisplay('point.geodesic(...) =', point_geodesic)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(point, {'color': 'black'}, 'Geometry [black]: point')\nm\n```"]]