measurement_greatCircle

Calculate the shortest path between two geographic points on Earth's surface using great circle distance, returning a GeoJSON LineString or MultiLineString for mapping applications.

Instructions

计算两点之间的大圆路径。

该函数使用 Turf.js 库的 greatCircle 方法，计算两个 GeoJSON 点特征之间的大圆路径。

Args: start: 起点 GeoJSON Point 特征或几何图形 - 类型: str (JSON 字符串格式的 GeoJSON) - 格式: 必须符合 GeoJSON Point 规范 - 坐标系: WGS84 (经度在前，纬度在后) - 示例: '{"type": "Point", "coordinates": [-122, 48]}'

end: 终点 GeoJSON Point 特征或几何图形 - 类型: str (JSON 字符串格式的 GeoJSON) - 格式: 必须符合 GeoJSON Point 规范 - 坐标系: WGS84 (经度在前，纬度在后) - 示例: '{"type": "Point", "coordinates": [-77, 39]}' options: 可选参数配置 - 类型: str (JSON 字符串) 或 None - 可选字段: - properties: 传递给大圆路径的属性对象 - npoints: 路径上的点数 (默认: 100) - offset: 控制跨越日期变更线时路径分割的可能性 (默认: 10) - 示例: '{"properties": {"name": "Seattle to DC"}, "npoints": 200}'

Returns: str: JSON 字符串格式的 GeoJSON LineString 或 MultiLineString 特征 - 类型: GeoJSON Feature with LineString or MultiLineString geometry - 格式: {"type": "Feature", "geometry": {"type": "LineString", "coordinates": [...]}} 或 {"type": "Feature", "geometry": {"type": "MultiLineString", "coordinates": [...]}} - 示例: '{"type": "Feature", "geometry": {"type": "LineString", "coordinates": [[-122, 48], [-120, 47], ...]}}'

Raises: Exception: 当 JavaScript 执行失败、超时或输入数据格式错误时抛出异常

Example: >>> import asyncio >>> start = '{"type": "Point", "coordinates": [-122, 48]}' >>> end = '{"type": "Point", "coordinates": [-77, 39]}' >>> options = '{"properties": {"name": "Seattle to DC"}, "npoints": 200}' >>> result = asyncio.run(greatCircle(start, end, options)) >>> print(result) '{"type": "Feature", "geometry": {"type": "LineString", "coordinates": [[-122, 48], [-120, 47], ...]}}'

Notes: - 输入参数 start、end 和 options 必须是有效的 JSON 字符串 - 坐标顺序为 [经度, 纬度] (WGS84 坐标系) - 如果起点和终点跨越日期变更线，结果可能是 MultiLineString - 大圆路径是球面上两点之间的最短路径 - 依赖于 Turf.js 库和 Node.js 环境

Input Schema

TableJSON Schema

Name	Required	Description	Default
`end`	Yes
`options`	No
`start`	Yes

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