centerMean
描述
🌐 Description
接受一个 Feature 或 FeatureCollection 并返回平均中心。可以加权。
🌐 Takes a Feature or FeatureCollection and returns the mean center. Can be weighted.
参数
🌐 Parameters
| 名称 | 类型 | 描述 |
|---|---|---|
| geojson | GeoJSON | GeoJSON 居中 |
| options? | Object | 可选参数 (默认 {}) |
| options.properties? | Object | 将 GeoJSON 属性转换为点 (默认 {}) |
| options.bbox? | Object | 将 GeoJSON BBox 转换为点 (默认 {}) |
| options.id? | Object | 将 GeoJSON Id 转换为点 (默认 {}) |
| options.weight? | string | 用于加权中心的属性名称 |
返回
🌐 Returns
Feature<Point> 位于所有输入要素的平均中心点的点要素
示例
🌐 Examples
var features = turf.featureCollection([
turf.point([-97.522259, 35.4691], { value: 10 }),
turf.point([-97.502754, 35.463455], { value: 3 }),
turf.point([-97.508269, 35.463245], { value: 5 }),
]);
var options = { weight: "value" };
var mean = turf.centerMean(features, options);
安装
🌐 Installation
$ npm install @turf/center-mean
import { centerMean } from "@turf/center-mean";
const result = centerMean(...);
$ npm install @turf/turf
import * as turf from "@turf/turf";
const result = turf.centerMean(...);