Incorporate the leaflet Draw feature into your Angular 2 application

I am a newcomer to Angular2, created using Cli. While I successfully imported Leaflet into my Angular2 project without any Angular2 directives, I am struggling to do the same with the Leaflet Draw extension. I haven't been able to make Draw work. In essence, I want to import a module that extends another within the same namespace, in this case, Leaflet. Does anyone know how to achieve this?

Below is my package.json:

{
"name": "amscm-web",
  "version": "2.0.31c",
  "license": "",
  // more configuration details here...
}

Additionally, here is my map.model.ts file:

import * as L from 'leaflet';
import 'leaflet.draw';

export class LeafletMapModel {

  constructor(
    public baseLayers: {
      id: string,
      name: string,
      enabled: boolean,
      layer: L.Layer
    }[],
    public baseLayer: string,
    public overlayLayers: {
      id: string,
      name: string,
      enabled: boolean,
      layer: L.Layer
    }[] = []
  ) { }

}

Answer №1

This is the solution that has been effective for me:

import { Component } from '@angular/core';
import { Leaflet } from 'leaflet';
import { Draw } from 'leaflet-draw';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'app';
  _layer = Leaflet.layer;
  _draw = Draw.drawLocal;
}

Answer №2

I found success with the following method:

npm install leaflet@latest --save

Within my Angular component, I implemented the following code:

import * as L from 'leaflet';
...
@ViewChild('map') mapElement;
ngOnInit() {
    const myMap = this.mapElement.nativeElement;
    const map = L.map(myMap).setView([51.505, -0.09], 13);

    L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
    }).addTo(map);

    L.marker([51.5, -0.09]).addTo(map)
        .bindPopup('A visually appealing popup.<br> Easily customizable.')
        .openPopup();
}

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