polygonToLine

描述

¥Description

将 多边形 转换为 (多个)LineString 或 MultiPolygon 转换为 FeatureCollection 或 (多个)LineString。

¥Converts a Polygon to (Multi)LineString or MultiPolygon to a FeatureCollection of (Multi)LineString.

参数

¥Parameters

名称	类型	描述
poly	特性<多边形 | MultiPolygon>	要转换的要素
options?	对象	可选参数（默认值：）
options.properties?	对象	将 GeoJSON 属性转换为要素（默认值 ）

返回

¥Returns

FeatureCollection | 特性<LineString |多线串> 已将（多）多边形转换为（多）线串

¥FeatureCollection | Feature<LineString | MultiLinestring> converted (Multi)Polygon to (Multi)LineString

示例

¥Examples

var poly = turf.polygon([
  [
    [125, -30],
    [145, -30],
    [145, -20],
    [125, -20],
    [125, -30],
  ],
]);

var line = turf.polygonToLine(poly);

安装

¥Installation

$ npm install @turf/polygon-to-line

import { polygonToLine } from "@turf/polygon-to-line";
const result = polygonToLine(...);

$ npm install @turf/turf

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