Leaflet Esri在Angular上进行地理编码而不是导入地理编码类

Question

我尝试在Angular项目中使用地理编码表单esri-leaflet库，但我有导入类问题。

这是我的组件代码：

​

import { Component, OnInit, AfterViewInit, Type } from '@angular/core';
import { latLng, tileLayer, layerGroup, marker, Layer, Control, circle, polygon, Map } from 'leaflet';
import * as L from 'leaflet';
import * as esri from 'esri-leaflet';
import GeocodeService from 'esri-leaflet-geocoder/dist/esri-leaflet-geocoder';


@Component({
  selector: 'abd-map',
  templateUrl: './abd-map.component.html',
  styleUrls: ['./abd-map.component.scss']
})
export class AbdMapComponent implements OnInit, AfterViewInit {


  constructor() {}

  ngOnInit(): void {

 }


  ngAfterViewInit(): void{


    const openStreetMap = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
      attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
    });

    const googleMap = L.tileLayer('http://{s}.google.com/vt/lyrs=m&x={x}&y={y}&z={z}', {
        maxZoom: 20,
        subdomains: ['mt0', 'mt1', 'mt2', 'mt3']
    });


    const map = L.map('map', {
        center: [39.61, -105.02],
        zoom: 13,
        layers: [openStreetMap, googleMap]
    });

    const baseMaps = {
      'openStreetMap': openStreetMap,
      'googleMap': googleMap
  };

    L.control.layers(baseMaps).addTo(map);


    const searchControl = esri.Geocoding.geosearch().addTo(map);


  }



}

​

当我运行"ng serve“时，我得到了这个错误：

/src/app/abd-map/abd-map.Component.TS 41:30-44“在'esri-leaflet‘中找不到导出'Geocoding’(导入为'esri')时出错。”

有人能帮我吗？谢谢。

Answer 1

您应该导入：

import "leaflet/dist/leaflet.css";
import * as L from "leaflet";
import "esri-leaflet-geocoder/dist/esri-leaflet-geocoder.css";
import "esri-leaflet-geocoder/dist/esri-leaflet-geocoder";
import * as ELG from "esri-leaflet-geocoder";

然后像这样初始化插件：

  const searchControl = new ELG.Geosearch();
  const results = new L.LayerGroup().addTo(map);

    searchControl
      .on("results", function (data) {
        results.clearLayers();
        for (let i = data.results.length - 1; i >= 0; i--) {
          results.addLayer(L.marker(data.results[i].latlng));
        }
      })
      .addTo(map);

Demo