angle

描述

¥Description

Finds the angle formed by two adjacent segments defined by 3 points.The result will be the (positive clockwise) angle with origin on the startPoint-midPoint segment, or its explementary angle if required.

参数

¥Parameters

名称	类型	描述
startPoint	坐标系	起点坐标
midPoint	坐标系	中点坐标
endPoint	坐标系	端点坐标
options?	对象	可选参数（默认 ）
options.explementary?	boolean	Returns the explementary angle instead (360 - angle) (default false)
options.mercator?	boolean	if calculations should be performed over Mercator or WGS84 projection (default false)

返回

¥Returns

number Angle between the provided points, or its explementary.

示例

¥Examples

turf.angle([5, 5], [5, 6], [3, 4]);
//=45

安装

¥Installation

$ npm install @turf/angle

import { angle } from "@turf/angle";
const result = angle(...);

$ npm install @turf/turf

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