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es3154
by es3154

measurement_area

Calculate polygon area in square meters from GeoJSON coordinates using WGS84 coordinate system. Accepts Polygon or MultiPolygon geometry types and returns area with units.

Instructions

计算多边形区域的面积。

此功能计算给定多边形区域的面积,返回以平方米为单位的数值结果。

Args: polygon: GeoJSON 多边形特征或几何图形 - 类型: str (JSON 字符串格式的 GeoJSON) - 格式: 必须符合 GeoJSON Polygon 规范 - 坐标系: WGS84 (经度在前,纬度在后) - 示例: '{"type": "Polygon", "coordinates": [[[125, -15], [113, -22], [154, -27], [144, -15], [125, -15]]]}'

Returns: str: JSON 字符串格式的面积结果对象 - 类型: 包含 value 和 units 的对象 - 格式: {"value": 面积数值, "units": "square meters"} - 示例: '{"value": 1234567.89, "units": "square meters"}'

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": [[[125, -15], [113, -22], [154, -27], [144, -15], [125, -15]]]}' >>> result = asyncio.run(area(polygon)) >>> print(result) '{"value": 1234567.89, "units": "square meters"}'

Notes: - 输入参数 polygon 必须是有效的 JSON 字符串 - 坐标顺序为 [经度, 纬度] (WGS84 坐标系) - 返回的面积单位为平方米 - 依赖于 Turf.js 库和 Node.js 环境 - 支持 Polygon 和 MultiPolygon 几何类型

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
polygonYes
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