directionalMean

描述

¥Description

此模块计算一组线的平均角度，并测量其趋势。它既可以在项目坐标系中使用，也可以在地理坐标系中使用。它可以处理线段或整条线。

¥This module calculate the average angle of a set of lines, measuring the trend of it. It can be used in both project coordinate system and geography coordinate system. It can handle segments of line or the whole line.

参数

¥Parameters

名称	类型	描述
lines	FeatureCollection<LineString>
options?	object	（默认 ---左括号------右括号---）
options.planar?	boolean	空间参考系统是投影的还是地理的。(默认 true)
options.segment?	boolean	是否将 LineString 视为一个整体还是一组线段。(默认 false)

返回

¥Returns

DirectionalMeanLine 方向平均线

¥DirectionalMeanLine Directional Mean Line

示例

¥Examples

var lines = turf.lineStrings([
  [
    [110, 45],
    [120, 50],
  ],
  [
    [100, 50],
    [115, 55],
  ],
]);
var directionalMeanLine = turf.directionalMean(lines);
// => directionalMeanLine

安装

¥Installation

$ npm install @turf/directional-mean

import { directionalMean } from "@turf/directional-mean";
const result = directionalMean(...);

$ npm install @turf/turf

import * as turf from "@turf/turf";
const result = turf.directionalMean(...);