The Google map shifts beyond the perceived limits of the world

Is anyone else encountering an issue with Google Maps where you can now pan beyond the poles? It used to stop at the poles before, correct?

The website I'm currently working on runs a location-based query on our server every time a user pans or zooms a map. This has been causing errors because the queries triggered by users panning off the map's edge end up being nonsensical.

Currently, I am addressing this edge case on the server side, but it doesn't provide the best user experience on the client side. Does anyone have advice on how to prevent over-panning?

Thank you

Screenshot:

javascriptgoogle-maps

Answer №1

To steer clear of any ambiguity, one method is to restrict the user's panning, as demonstrated in the "Range Limiting" example designed for Version 2.

Adapting it for Version 3 is fairly simple, as shown here: http://jsfiddle.net/44e6y/9/. However, there are a few downsides:

  • It requires the center of the map to be within a predefined box,
  • Zooming in will narrow down the visible area even more (which might not be an issue unless you want to explore regions like Greenland where multiple LatLngBounds are necessary for different zoom levels),
  • Due to the previous point, I set a minimum zoom level of 2 to fit the JSFiddle iframe dimensions. If the map occupies the entire screen, a higher minimum zoom might be needed to prevent displaying the grayed-out areas. Generally, a higher minimum zoom ensures more consistent behavior.

Answer №2

After encountering the same issue with zoom levels in a project, I found that only level 2 was accepted while others failed in the example. Attempting to find a formula proved futile, so I manually coded values for the first 8 zoom levels. While this solution may not cover all scenarios, it should suffice for the majority of cases.

Link to JSFiddle

To improve functionality, an additional listener was included.

google.maps.event.addListener(map, 'zoom_changed', function() {
      checkBounds();});

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