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.MultiPoint.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 |
---|
MultiPoint.edgesAreGeodesics() | 布尔值 |
示例
代码编辑器 (JavaScript)
// Define a MultiPoint object.
var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);
// Apply the edgesAreGeodesics method to the MultiPoint object.
var multiPointEdgesAreGeodesics = multiPoint.edgesAreGeodesics();
// Print the result to the console.
print('multiPoint.edgesAreGeodesics(...) =', multiPointEdgesAreGeodesics);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPoint,
{'color': 'black'},
'Geometry [black]: multiPoint');
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 MultiPoint object.
multipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])
# Apply the edgesAreGeodesics method to the MultiPoint object.
multipoint_edges_are_geodesics = multipoint.edgesAreGeodesics()
# Print the result.
display('multipoint.edgesAreGeodesics(...) =', multipoint_edges_are_geodesics)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint')
m
如未另行说明,那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可,并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情,请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-07-26。
[null,null,["最后更新时间 (UTC):2025-07-26。"],[[["\u003cp\u003e\u003ccode\u003eedgesAreGeodesics()\u003c/code\u003e is a method used on MultiPoint geometries to determine the nature of its edges.\u003c/p\u003e\n"],["\u003cp\u003eIt returns \u003ccode\u003etrue\u003c/code\u003e if the edges of the MultiPoint are treated as geodesics (curved lines along the Earth's surface), and \u003ccode\u003efalse\u003c/code\u003e if they are treated as straight lines in the projection.\u003c/p\u003e\n"],["\u003cp\u003eThe method takes no arguments besides the geometry itself and returns a Boolean value.\u003c/p\u003e\n"],["\u003cp\u003eThis function is useful for understanding how Earth Engine interprets the edges of a MultiPoint when performing calculations or visualizations.\u003c/p\u003e\n"]]],[],null,["# ee.Geometry.MultiPoint.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| MultiPoint.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 MultiPoint object.\nvar multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);\n\n// Apply the edgesAreGeodesics method to the MultiPoint object.\nvar multiPointEdgesAreGeodesics = multiPoint.edgesAreGeodesics();\n\n// Print the result to the console.\nprint('multiPoint.edgesAreGeodesics(...) =', multiPointEdgesAreGeodesics);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiPoint,\n {'color': 'black'},\n 'Geometry [black]: multiPoint');\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 MultiPoint object.\nmultipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])\n\n# Apply the edgesAreGeodesics method to the MultiPoint object.\nmultipoint_edges_are_geodesics = multipoint.edgesAreGeodesics()\n\n# Print the result.\ndisplay('multipoint.edgesAreGeodesics(...) =', multipoint_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(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint')\nm\n```"]]