Can Google Maps v3 Be Restricted to Display a Specific Area with Limited Zoom Levels?

Limiting Viewable Area and Zoom Level in Google Maps v3

Question:

Can Google Maps v3 be restricted to display a specific area, with limited zoom levels?

Answer:

Yes, it is possible to achieve this using the following techniques:

Limiting Viewable Area:

• Use the LatLngBounds object to define the boundary of the viewable area.
• Set the restrictions option of the MapOptions object to the LatLngBounds.

Example:

<code class="javascript">var bounds = new google.maps.LatLngBounds(
  new google.maps.LatLng(lat1, lng1),
  new google.maps.LatLng(lat2, lng2)
);

var mapOptions = {
  restrictions: {
    latLngBounds: bounds
  }
};

var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);</code>

Limiting Zoom Level:

• Use the minZoom and maxZoom options of the MapOptions object to specify the allowed zoom range.

Example:

<code class="javascript">var mapOptions = {
  minZoom: 6,
  maxZoom: 9
};

var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);</code>

Note:

Restricting zoom level using StyledMap is limited to the ROADMAP base map type. Using the minZoom and maxZoom options provides a more comprehensive solution.

Additional Notes:

• All base map types can be used with these restrictions.
• These options can also be set dynamically after map initialization using the setOptions() method.
• Setting the disableDefaultUI option to true can prevent users from accessing the zoom controls.

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