misc_kinks
Detect self-intersection points in line or polygon geometries to identify kinks and return their coordinate locations for spatial analysis.
Instructions
查找几何图形中的自相交点。
此功能检测线或多边形几何图形中的自相交点（扭结点），返回这些交叉点的位置坐标。
Args: geojson: GeoJSON 对象 - 类型: str (JSON 字符串格式的 GeoJSON) - 格式: 支持 LineString、MultiLineString、Polygon、MultiPolygon - 坐标系: WGS84 (经度在前，纬度在后) - 示例: '{"type": "Polygon", "coordinates": [[[-12.034835, 8.901183], [-12.060413, 8.899826], [-12.03638, 8.873199], [-12.059383, 8.871418], [-12.034835, 8.901183]]]}'
Returns: str: JSON 字符串格式的点特征集合 - 类型: GeoJSON FeatureCollection with Point features - 格式: {"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": [lng, lat]}}, ...]}
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 >>> polygon = '{"type": "Polygon", "coordinates": [[[-12.034835, 8.901183], [-12.060413, 8.899826], [-12.03638, 8.873199], [-12.059383, 8.871418], [-12.034835, 8.901183]]]}' >>> result = asyncio.run(kinks(polygon)) >>> print(result) '{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": [-12.045, 8.885]}}]}'
Notes: - 输入参数 geojson 必须是有效的 JSON 字符串 - 坐标顺序为 [经度, 纬度] (WGS84 坐标系) - 返回所有自相交点的位置坐标 - 依赖于 Turf.js 库和 Node.js 环境
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| geojson | Yes |