circle

描述

¥Description

Takes a 点 and calculates the circle polygon given a radius in degrees, radians, miles, or kilometers;步长（用于确定精度）。

¥Takes a Point and calculates the circle polygon given a radius in degrees, radians, miles, or kilometers; and steps for precision.

参数

¥Parameters

名称	类型	描述
center	特性<点> | 数组<number>	中心点
radius	number	圆的半径
options?	对象	可选参数（默认 ）
options.steps?	number	number of steps (default 64)
options.units?	string	miles, kilometers, degrees, or radians (default 'kilometers')
options.properties?	对象	属性（默认 ）

返回

¥Returns

特性<多边形> 圆多边形

¥Feature<Polygon> circle polygon

示例

¥Examples

var center = [-75.343, 39.984];
var radius = 5;
var options = { steps: 10, units: "kilometers", properties: { foo: "bar" } };
var circle = turf.circle(center, radius, options);

安装

¥Installation

$ npm install @turf/circle

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

$ npm install @turf/turf

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