The leaflet map fails to encompass the entire map area

Question

The leaflet map fails to encompass the entire map area

Update: My answer has been posted. Please take a look.

Inquiry:

I'm trying to figure out why the leaflet map is not displaying properly in the full map area?

.html

<ion-content padding>
  <div style="height: 100%;width:100%" leaflet [leafletOptions]="options" *ngIf="options" [leafletCenter]="center">
  </div>
</ion-content>

.ts

  init(): void {
    this.options = {
      layers: [
        tileLayer("http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", { maxZoom: 18, attribution: "..." })
      ],
      zoom: 10,
      center: this.center = latLng(Number(this.activatedRoute.snapshot.paramMap.get("latitude")), Number(this.activatedRoute.snapshot.paramMap.get("longitude"))),
      attributionControl: false,
    };
  }

UI

https://i.sstatic.net/0BPLj.png

Take a look at the image provided. It appears there may be an issue with the transform property. Initially set at 0,0,0, I manually adjusted it in the browser console. How can this be applied to the map?

https://i.sstatic.net/4RZ68.png

angular typescript leaflet maps ionic4

Answer 1

Answer №1

Dealing with a similar issue within my Ionic 4 project, I followed the advice given in a comment along with utilizing this helpful link. It was necessary to use map.invalidateSize() not only when rendering the map but also when making changes such as adding/removing markers. However, this wasn't a complete solution. I found that manually triggering change detection was also required. Here's a snippet from our code:

this.map.setView([this.myLocation.latitude, this.myLocation.longitude], 13);
this.map.invalidateSize();
this.ref.detectChanges();

In this code, ref corresponds to ChangeDetectorRef.

Additionally, ensure that you have imported the Leaflet css in your angular.json file like so:

"styles": [
  // ....
  "./node_modules/leaflet/dist/leaflet.css"
]

Answer 2

Dealing with a similar issue within my Ionic 4 project, I followed the advice given in a comment along with utilizing this helpful link. It was necessary to use map.invalidateSize() not only when rendering the map but also when making changes such as adding/removing markers. However, this wasn't a complete solution. I found that manually triggering change detection was also required. Here's a snippet from our code:

this.map.setView([this.myLocation.latitude, this.myLocation.longitude], 13);
this.map.invalidateSize();
this.ref.detectChanges();

In this code, ref corresponds to ChangeDetectorRef.

Additionally, ensure that you have imported the Leaflet css in your angular.json file like so:

"styles": [
  // ....
  "./node_modules/leaflet/dist/leaflet.css"
]

Answer 3

Answer №2

It seems to me that the leaflet completely fills its parent container. Have you tried using the browser's inspect tool to determine the width and height of the parent element? You could also experiment with

position: absolute; left: 0;

to bypass any constraints set by the parent's size.

Answer 4

It seems to me that the leaflet completely fills its parent container. Have you tried using the browser's inspect tool to determine the width and height of the parent element? You could also experiment with

position: absolute; left: 0;

to bypass any constraints set by the parent's size.

Answer 5

Answer №3

Try changing the padding and adjusting the height to 100vh

Consider using this code snippet:

<ion-content>
  <div style="height: 100vh; width:100%" leaflet [leafletOptions]="options" *ngIf="options" [leafletCenter]="center">
  </div>
</ion-content>

To apply a transform, you can use the following approach:

<ion-content padding>
  <div style="height: 100%; width:100%; transform: translate3D(250px, 200px, 100px)" leaflet [leafletOptions]="options" *ngIf="options" [leafletCenter]="center">
  </div>
</ion-content>

Answer 6

Try changing the padding and adjusting the height to 100vh

Consider using this code snippet:

<ion-content>
  <div style="height: 100vh; width:100%" leaflet [leafletOptions]="options" *ngIf="options" [leafletCenter]="center">
  </div>
</ion-content>

To apply a transform, you can use the following approach:

<ion-content padding>
  <div style="height: 100%; width:100%; transform: translate3D(250px, 200px, 100px)" leaflet [leafletOptions]="options" *ngIf="options" [leafletCenter]="center">
  </div>
</ion-content>

Answer 7

Answer №4

In my experience using Ionic 4 app, I encountered a problem that none of the solutions provided by other developers seemed to solve. The issue was related to the utilization of a particular life cycle event in my code. After making the switch to using ionViewDidEnter(), all the issues were resolved.

ionViewDidEnter() {
    this.center = latLng(Number(this.activatedRoute.snapshot.paramMap.get("latitude")), Number(this.activatedRoute.snapshot.paramMap.get("longitude")));
    this.options = {
      layers: [
        tileLayer("http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", { maxZoom: 18, attribution: "..." })
      ],
      zoom: 17,
      center: this.center,
      attributionControl: false,
    };

    this.layers.push(this.mapService.getMarker(this.center, "assets/icon/map/placeholder.png"));

}

Answer 8

In my experience using Ionic 4 app, I encountered a problem that none of the solutions provided by other developers seemed to solve. The issue was related to the utilization of a particular life cycle event in my code. After making the switch to using ionViewDidEnter(), all the issues were resolved.

ionViewDidEnter() {
    this.center = latLng(Number(this.activatedRoute.snapshot.paramMap.get("latitude")), Number(this.activatedRoute.snapshot.paramMap.get("longitude")));
    this.options = {
      layers: [
        tileLayer("http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", { maxZoom: 18, attribution: "..." })
      ],
      zoom: 17,
      center: this.center,
      attributionControl: false,
    };

    this.layers.push(this.mapService.getMarker(this.center, "assets/icon/map/placeholder.png"));

}

Answer 9

Answer №5

Dealing with a similar issue, even after importing leaflet.css and using the "invalidateSize()" workaround.

The problem stemmed from having this in "myComponent.page.html":

<ion-content>
  <div id="map" style="height:400px; width: 100%;"></div>
</ion-content>

It appears that there was a conflict between Ionic4 CSS and leaflet. The solution is to move the <div> tag outside of the <ion-content>.

The correct structure should be:

<div id="map" style="height:400px; width: 100%;"></div>

I hope this explanation proves helpful to someone encountering a similar issue.

Answer 10

Dealing with a similar issue, even after importing leaflet.css and using the "invalidateSize()" workaround.

The problem stemmed from having this in "myComponent.page.html":

<ion-content>
  <div id="map" style="height:400px; width: 100%;"></div>
</ion-content>

It appears that there was a conflict between Ionic4 CSS and leaflet. The solution is to move the <div> tag outside of the <ion-content>.

The correct structure should be:

<div id="map" style="height:400px; width: 100%;"></div>

I hope this explanation proves helpful to someone encountering a similar issue.

Answer 11

Answer №6

Implementing map.invalidateSize() will automatically execute after a window resize event.

To handle height adjustments, simply include the following code :

 window.dispatchEvent(new Event('resize'));
 this.map.invalidateSize();

This method has proven to be highly effective in my experience. Remember to substitute map with your specific map variable. Hopefully, this solution proves useful to others.

Answer 12

Implementing map.invalidateSize() will automatically execute after a window resize event.

To handle height adjustments, simply include the following code :

 window.dispatchEvent(new Event('resize'));
 this.map.invalidateSize();

This method has proven to be highly effective in my experience. Remember to substitute map with your specific map variable. Hopefully, this solution proves useful to others.

The leaflet map fails to encompass the entire map area

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

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