interpolation_planepoint
Calculate the interpolated z-value for a point within a triangular plane using three vertices' z-values. This tool processes GeoJSON point and triangle polygon features to determine elevation or depth values at specific locations.
Instructions
计算点在三角形平面上的z值。
此功能根据三角形三个顶点的z值，计算给定点在三角形平面上的插值z值。
Args: point: 点特征 - 类型: str (JSON 字符串格式的 GeoJSON Feature) - 格式: Feature with Point geometry - 示例: '{"type": "Feature", "geometry": {"type": "Point", "coordinates": [-75.3221, 39.529]}}'
triangle: 三角形特征
- 类型: str (JSON 字符串格式的 GeoJSON Feature)
- 格式: Feature with Polygon geometry (必须包含三个顶点)
- 示例: '{"type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-75.1221, 39.57], [-75.58, 39.18], [-75.97, 39.86], [-75.1221, 39.57]]]}, "properties": {"a": 11, "b": 122, "c": 44}}'Returns: str: JSON 字符串格式的z值结果 - 类型: 包含 value 的对象 - 格式: {"value": z值} - 示例: '{"value": 35.5}'
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 = '{"type": "Feature", "geometry": {"type": "Point", "coordinates": [-75.3221, 39.529]}}' >>> triangle = '{"type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-75.1221, 39.57], [-75.58, 39.18], [-75.97, 39.86], [-75.1221, 39.57]]]}, "properties": {"a": 11, "b": 122, "c": 44}}' >>> result = asyncio.run(planepoint(point, triangle)) >>> print(result) '{"value": 35.5}'
Notes: - 输入参数 point 和 triangle 必须是有效的 JSON 字符串 - 坐标顺序为 [经度, 纬度] (WGS84 坐标系) - 三角形必须包含三个顶点，且首尾坐标相同形成闭合环 - 三角形属性'a', 'b', 'c'分别对应三个顶点的z值 - 依赖于 Turf.js 库和 Node.js 环境
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| point | Yes | ||
| triangle | Yes |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |