Google Maps v3 - limit viewable area and zoom level

user_244647 0
Viewed 149207

is it possible to limit Google map v3 to a certain area? I want to allow displaying only some area (e.g. a country) and disallow the user to slide elsewhere. Also I want to restrict the zoom level - e.g. only between levels 6 and 9. And I want to use all the base map types.

Is there any way to achieve this?

I had a partial success with limiting zoom level by using StyledMap, but I succeeded only with restricting ROADMAP, I wasn't able to limit zoom on other basic types this way.

Thanks for any help

google-maps-api-3 google-maps javascript
12 Answers

Good news. Starting from the version 3.35 of Maps JavaScript API, that was launched on February 14, 2019, you can use new restriction option in order to limit the viewport of the map.

According to the documentation

MapRestriction interface

A restriction that can be applied to the Map. The map's viewport will not exceed these restrictions.

source: https://developers.google.com/maps/documentation/javascript/reference/map#MapRestriction

So, now you just add restriction option during a map initialization and that it. Have a look at the following example that limits viewport to Switzerland

var map;
function initMap() {
  map = new google.maps.Map(document.getElementById('map'), {
    center: {lat: 46.818188, lng: 8.227512},
    minZoom: 7,
    maxZoom: 14,
    zoom: 7,
    restriction: {
      latLngBounds: {
        east: 10.49234,
        north: 47.808455,
        south: 45.81792,
        west: 5.95608
      },
      strictBounds: true
    },
  });
}
#map {
  height: 100%;
}
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}
<div id="map"></div>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDztlrk_3CnzGHo7CFvLFqE_2bUKEq1JEU&callback=initMap" async defer></script>

I hope this helps!

user_51407810
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