Turf-MCP

从点网格生成等值线。

此功能从具有z值的点网格生成等值线，用于创建连续值的线状表示。

Args: point_grid: 点网格特征集合 - 类型: str (JSON 字符串格式的 GeoJSON FeatureCollection) - 格式: FeatureCollection with Point features (必须是方形或矩形网格) - 示例: '{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": [-75.343, 39.984], "properties": {"elevation": 100}}, ...]}'

breaks: 等值线断点数组
    - 类型: str (JSON 字符串格式的数组)
    - 格式: [break1, break2, break3, ...]
    - 示例: '[0, 10, 20, 30, 40]'

options: 可选参数配置
    - 类型: str (JSON 字符串) 或 None
    - 可选字段:
        - zProperty: z值属性名 (默认: 'elevation')
        - commonProperties: 传递给所有等值线的属性对象
        - breaksProperties: 按顺序传递给对应等值线的属性对象数组
    - 示例: '{"zProperty": "temperature", "commonProperties": {"type": "isolines"}}'

Returns: str: JSON 字符串格式的 GeoJSON FeatureCollection - 类型: GeoJSON FeatureCollection with LineString features - 格式: {"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "LineString", "coordinates": [...]}, "properties": {...}}, ...]} - 示例: '{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "LineString", "coordinates": [...]}, "properties": {"value": 10}}, ...]}'

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 >>> point_grid = '{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": [-75.343, 39.984], "properties": {"temperature": 25.5}}]}' >>> breaks = '[0, 10, 20, 30]' >>> result = asyncio.run(isolines(point_grid, breaks, '{"zProperty": "temperature"}')) >>> print(result) '{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "LineString", "coordinates": [...]}, "properties": {"value": 10}}, ...]}'

Notes: - 输入参数 point_grid、breaks 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) - 点网格必须是方形或矩形排列 - 等值线用于可视化连续数据的等值边界 - 依赖于 Turf.js 库和 Node.js 环境