pointToPolygonDistance
描述
¥Description
计算从一个点到一个多边形或多个多边形边的距离。返回多边形内点的负值。处理带孔的多边形和多个多边形。洞被视为多边形的外部。
¥Calculates the distance from a point to the edges of a polygon or multi-polygon. Returns negative values for points inside the polygon. Handles polygons with holes and multi-polygons. A hole is treated as the exterior of the polygon.
参数
¥Parameters
名称 | 类型 | 描述 |
---|---|---|
point | 特性<点> | 点 | 位置 | 输入点 |
polygonOrMultiPolygon | 特性<多边形 | MultiPolygon> | 多边形 | MultiPolygon | 输入多边形或多多边形 |
options | 对象 | 可选参数(默认 {}) |
options.units | 单位 | 结果单位,例如 "kilometers"、"miles"、"meters" |
options.method | "geodesic" | "planar" | 结果方法 |
返回
¥Returns
number 距离(以米为单位)(多边形内部的点为负值)
¥number Distance in meters (negative values for points inside the polygon)
安装
¥Installation
$ npm install @turf/point-to-polygon-distance
import { pointToPolygonDistance } from "@turf/point-to-polygon-distance";
const result = pointToPolygonDistance(...);
$ npm install @turf/turf
import * as turf from "@turf/turf";
const result = turf.pointToPolygonDistance(...);