transformation_simplify

Simplify GeoJSON geometries to reduce complexity while preserving shape using configurable tolerance and quality settings.

Instructions

简化 GeoJSON 几何。

该函数使用 Turf.js 库的 simplify 方法，简化给定的 GeoJSON 几何图形。

Args: geojson: GeoJSON 对象 - 类型: str (JSON 字符串格式的 GeoJSON) - 格式: 任何有效的 GeoJSON 对象 - 坐标系: WGS84 (经度在前，纬度在后) - 示例: '{"type": "Polygon", "coordinates": [[[-70.603637, -33.399918], [-70.614624, -33.395332], [-70.639343, -33.392466], [-70.659942, -33.394759], [-70.683975, -33.404504], [-70.697021, -33.419406], [-70.701141, -33.434306], [-70.700454, -33.446339], [-70.694274, -33.458369], [-70.682601, -33.465816], [-70.668869, -33.472117], [-70.646209, -33.473835], [-70.624923, -33.472117], [-70.609817, -33.468107], [-70.595397, -33.458369], [-70.587158, -33.442901], [-70.587158, -33.426283], [-70.590591, -33.414248], [-70.594711, -33.406224], [-70.603637, -33.399918]]]}'

options: 可选参数配置 - 类型: str (JSON 字符串) 或 None - 可选字段: - tolerance: 简化容差 (默认: 1) - highQuality: 是否使用高质量简化 (默认: false) - mutate: 是否允许修改输入对象 (默认: false) - 示例: '{"tolerance": 0.01, "highQuality": true}'

Returns: str: JSON 字符串格式的简化后的 GeoJSON 对象 - 类型: 与输入相同的 GeoJSON 类型 - 格式: 与输入相同的格式 - 示例: '{"type": "Polygon", "coordinates": [[[-70.603637, -33.399918], [-70.614624, -33.395332], [-70.639343, -33.392466], ...]]}'

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 >>> geojson = '{"type": "Polygon", "coordinates": [[[-70.603637, -33.399918], [-70.614624, -33.395332], [-70.639343, -33.392466], [-70.659942, -33.394759], [-70.683975, -33.404504], [-70.697021, -33.419406], [-70.701141, -33.434306], [-70.700454, -33.446339], [-70.694274, -33.458369], [-70.682601, -33.465816], [-70.668869, -33.472117], [-70.646209, -33.473835], [-70.624923, -33.472117], [-70.609817, -33.468107], [-70.595397, -33.458369], [-70.587158, -33.442901], [-70.587158, -33.426283], [-70.590591, -33.414248], [-70.594711, -33.406224], [-70.603637, -33.399918]]]}' >>> options = '{"tolerance": 0.01, "highQuality": true}' >>> result = asyncio.run(simplify(geojson, options)) >>> print(result) '{"type": "Polygon", "coordinates": [[[-70.603637, -33.399918], [-70.614624, -33.395332], [-70.639343, -33.392466], ...]]}'

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) - tolerance 值越小，简化程度越低 - highQuality 为 true 时使用更精确但更慢的算法 - 依赖于 Turf.js 库和 Node.js 环境

Input Schema

Name	Required	Description	Default
`geojson`	Yes
`options`	No

Input Schema (JSON Schema)

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

Turf-MCP