How can I display an agm-polyline within a map in Angular 7?

I need assistance with adjusting the polylines on my map and dynamically setting the zoom level based on their size and position. Here is the code I am currently using:

  <agm-map style="height: 500px" [latitude]='selectedLatitude' [longitude]='selectedLongitude'
    *ngIf='xPolyline.length'>
    <agm-polyline *ngFor='let polyline of xPolyline' [strokeColor]="'#0000ff'" [strokeOpacity]="0.9">
      <agm-polyline-point *ngFor="let point of polyline;let i = index;" [latitude]="point.latitude"
        [longitude]="point.longitude">
      </agm-polyline-point>
    </agm-polyline>
  </agm-map>
angulartypescriptangular7angular-google-maps

Answer №1

<agm-map ... [autoFitBounds]="true"></agm-map>

<agm-polyline-point ... [agmAutoFitBounds]="true"></agm-polyline-point>

No need for any additional calculations or API calls. AGM will handle this automatically for you.

Answer №2

When the AGM map is ready, this code subscribes to it and creates a new LatLngBounds object. It then iterates through each point in the polyline array and extends the bounds to include each latitude and longitude coordinate. Finally, it adjusts the zoom level of the map to fit all the points of the polyline.

This function assumes that the markers variable contains an array of latitude and longitude coordinates. By updating the bounds based on these coordinates, the map can display all the polyline points effectively.

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