polygonSmooth

描述

¥Description

Smooths a 多边形 or MultiPolygon.基于 Chaikin 算法。警告：可能会创建退化多边形。

¥Smooths a Polygon or MultiPolygon. Based on Chaikin's algorithm. Warning: may create degenerate polygons.

参数

¥Parameters

名称	类型	描述
inputPolys	FeatureCollection<多边形 | MultiPolygon> | 特性<多边形 | MultiPolygon> | 多边形 | MultiPolygon	(多个)待平滑的多边形
options?	对象	可选参数（默认 ）
options.iterations?	string	The number of times to smooth the polygon.A higher value means a smoother polygon.(默认 1)

返回

¥Returns

FeatureCollection<多边形 | MultiPolygon> FeatureCollection containing the smoothed polygon/multipoylgons

¥FeatureCollection<Polygon | MultiPolygon> FeatureCollection containing the smoothed polygon/multipoylgons

示例

¥Examples

var polygon = turf.polygon([
  [
    [11, 0],
    [22, 4],
    [31, 0],
    [31, 11],
    [21, 15],
    [11, 11],
    [11, 0],
  ],
]);

var smoothed = turf.polygonSmooth(polygon, { iterations: 3 });

安装

¥Installation

$ npm install @turf/polygon-smooth

import { polygonSmooth } from "@turf/polygon-smooth";
const result = polygonSmooth(...);

$ npm install @turf/turf

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