helper_multiLineString
Create GeoJSON MultiLineString features from coordinate arrays to represent complex linear elements with multiple lines for spatial data processing.
Instructions
创建多线特征对象。
此功能根据多组坐标点数组创建多线特征，用于表示包含多条线的复杂线性要素。
Args: coordinates: 多线坐标数组 - 类型: str (JSON 字符串格式的数组) - 格式: [[[lng1, lat1], [lng2, lat2], ...], [[lng3, lat3], [lng4, lat4], ...]] - 示例: '[[[[-24, 63], [-23, 60], [-25, 65], [-20, 69]]], [[[-14, 43], [-13, 40], [-15, 45], [-10, 49]]]]'
Returns: str: JSON 字符串格式的 GeoJSON MultiLineString Feature - 类型: GeoJSON Feature with MultiLineString geometry - 格式: {"type": "Feature", "geometry": {"type": "MultiLineString", "coordinates": [...]}, "properties": {...}} - 示例: '{"type": "Feature", "geometry": {"type": "MultiLineString", "coordinates": [[[-24, 63], [-23, 60], ...], [[-14, 43], [-13, 40], ...]]}, "properties": {"name": "multi route"}}'
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 >>> coordinates = '[[[[-24, 63], [-23, 60], [-25, 65], [-20, 69]]], [[[-14, 43], [-13, 40], [-15, 45], [-10, 49]]]]' >>> properties = '{"name": "multi route"}' >>> result = asyncio.run(multiLineString(coordinates, properties)) >>> print(result) '{"type": "Feature", "geometry": {"type": "MultiLineString", "coordinates": [...]}, "properties": {"name": "multi route"}}'
Notes: - 输入参数 coordinates、properties 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) - 多线特征包含多条独立的线 - 依赖于 Turf.js 库和 Node.js 环境
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| coordinates | Yes | ||
| options | No | ||
| properties | No |