lineEach

描述

🌐 Description

在 LineString、Polygon、MultiLineString、MultiPolygon 特性或几何体中迭代线或环坐标，类似于 Array.forEach。

🌐 Iterate over line or ring coordinates in LineString, Polygon, MultiLineString, MultiPolygon Features or Geometries, similar to Array.forEach.

参数

🌐 Parameters

名称	类型	描述
geojson	FeatureCollection<Lines> | Feature<Lines> | Lines | Feature<GeometryCollection> | GeometryCollection	object
callback	lineEachCallback	一种接收 (currentLine, featureIndex, multiFeatureIndex, geometryIndex) 的方法

返回

🌐 Returns

void

示例

🌐 Examples

var multiLine = turf.multiLineString([
  [
    [26, 37],
    [35, 45],
  ],
  [
    [36, 53],
    [38, 50],
    [41, 55],
  ],
]);

turf.lineEach(
  multiLine,
  function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
    //=currentLine
    //=featureIndex
    //=multiFeatureIndex
    //=geometryIndex
  },
);

安装

🌐 Installation

$ npm install @turf/meta

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

$ npm install @turf/turf

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