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Version: 7.2.0

lineEach

描述​

¥Description

迭代 LineString、Polygon、MultiLineString、MultiPolygon 要素或几何体中的线或环坐标，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
geojsonFeatureCollection<行数> | 特性<行数> | 行数 | 特性<GeometryCollection> | GeometryCollectionobject
callbacklineEachCallback一个接收 (currentLine, featureIndex, multiFeatureIndex, geomationIndex) 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(...);