Skip to main content
Glama

Turf-MCP

by es3154

measurement_length

Calculate the spherical length of GeoJSON LineString or MultiLineString geometries, accounting for Earth's curvature, and return results in specified distance units.

Instructions

计算线或多线的长度。

此功能计算给定线或多线几何图形的实际长度,考虑地球曲率,返回指定单位的长度值。

Args: geojson: GeoJSON 线或多线对象 - 类型: str (JSON 字符串格式的 GeoJSON) - 格式: 必须符合 GeoJSON LineString 或 MultiLineString 规范 - 坐标系: WGS84 (经度在前,纬度在后) - 示例: '{"type": "LineString", "coordinates": [[-74, 40], [-78, 42], [-82, 35]]}'

options: 可选参数配置 - 类型: str (JSON 字符串) 或 None - 可选字段: - units: 距离单位 (默认: 'kilometers') - 有效值: 'miles', 'nauticalmiles', 'kilometers', 'meters', 'yards', 'feet', 'inches' - 示例: '{"units": "miles"}'

Returns: str: JSON 字符串格式的长度结果对象 - 类型: 包含 value 和 units 的对象 - 格式: {"value": 长度数值, "units": "距离单位"} - 示例: '{"value": 123.45, "units": "miles"}'

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 >>> line = '{"type": "LineString", "coordinates": [[-74, 40], [-78, 42], [-82, 35]]}' >>> options = '{"units": "miles"}' >>> result = asyncio.run(length(line, options)) >>> print(result) '123.45'

Notes: - 输入参数 geojson 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) - 计算的是线或多线的球面长度 - 依赖于 Turf.js 库和 Node.js 环境

Input Schema

NameRequiredDescriptionDefault
geojsonYes
optionsNo

Input Schema (JSON Schema)

{ "properties": { "geojson": { "type": "string" }, "options": { "anyOf": [ { "type": "string" }, { "type": "null" } ], "default": null } }, "required": [ "geojson" ], "type": "object" }

Other Tools from Turf-MCP

Related Tools

    MCP directory API

    We provide all the information about MCP servers via our MCP API.

    curl -X GET 'https://glama.ai/api/mcp/v1/servers/es3154/turf-mcp'

    If you have feedback or need assistance with the MCP directory API, please join our Discord server