along

描述

¥Description

获取一个 LineString 对象，并返回沿线指定距离处的 点 对象。

¥Takes a LineString and returns a Point at a specified distance along the line.

参数

¥Parameters

名称	类型	描述
line	特性<LineString> | LineString	输入线
distance	number	沿线距离
options?	对象	可选参数（默认 {}）
options.units?	单位	可以是度、弧度、英里或千米（默认 "kilometers"）

返回

¥Returns

特性<点> 沿线的点 distance units

¥Feature<Point> Point distance units along the line

示例

¥Examples

var line = turf.lineString([
  [-83, 30],
  [-84, 36],
  [-78, 41],
]);
var options = { units: "miles" };

var along = turf.along(line, 200, options);

安装

¥Installation

$ npm install @turf/along

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

$ npm install @turf/turf

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