Limiting Google Maps to a specific country

[Avinash Javaji]

Hi,

   I'm rather new to Google Maps API and pretty new to using APIs itself, however I have done a fair amount research before asking this: is it possible to limit the map to a specific area, for example, to a specific country like India? I know I can limit the zoom and monitor the draggable events to ensure the user only views a specific area, but I would like to completely remove other areas (in this case all countries other than India) from the map.

Any information would be greatly appreciated, even far fetched solutions.

Thank You.

[Barry Hunter]

I think the closest can do is something like this example
http://maps.forum.nu/gm_texas.html

it just draws a shape over the top of the other areas - making a map
just showing Texas.

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[Avinash Javaji]

Thank you for your response. I have seen that example. I agree it is
one of the best solutions available. However it isn't all that great.
When you zoom or pan around, it takes a while to show the overlay
tiles. Generally it isn't a very clean way to do it. So I'm looking
for any other possible solutions.

Avinash

On Dec 28, 3:58 am, Barry Hunter <barrybhun...@gmail.com> wrote:
> I think the closest can do is something like this examplehttp://maps.forum.nu/gm_texas.html

[Marcelo]

On Dec 28, 8:37 am, Avinash Javaji <avinashjav...@gmail.com> wrote:
> Thank you for your response. I have seen that example. I agree it is
> one of the best solutions available. However it isn't all that great.
> When you zoom or pan around, it takes a while to show the overlay
> tiles. Generally it isn't a very clean way to do it. So I'm looking
> for any other possible solutions.

Keep in mind that my site is hosted on a shared server, which is not
optimal for performance, and also, I do not have mirror servers in
India, like Google does.
An alternative to the custom tiles approach could be a GroundOverlay
covering the entire world, and with a transparent "hole" in the shape
of the country you want to show. This is similar to that approach,
(V2):
http://maps/temp/gm_rounded_corners.html

... but it uses GOverlay instead of GGroundOverlay, so it does not
scale when you zoom in and out:

--
Marcelo - http://maps.forum.nu
--

[Marcelo]

On Dec 28, 9:22 am, Marcelo <marcelo...@hotmail.com> wrote:
> http://maps/temp/gm_rounded_corners.html

OOPSS! Wrong URL. This is the right one:
http://maps.forum.nu/temp/gm_rounded_corners.html

--
Marcelo - http://maps.forum.nu
--




>
> ... but it uses GOverlay instead of GGroundOverlay, so it does not
> scale when you zoom in and out:
>
> --

> Marcelo -http://maps.forum.nu

[Avinash Javaji]

Hm yea, but it isn't of much use I guess cause it doesn't scale. But
thanks anyway, I didn't know I could do this.

On Dec 28, 9:26 pm, Marcelo <marcelo...@hotmail.com> wrote:
> On Dec 28, 9:22 am, Marcelo <marcelo...@hotmail.com> wrote:
>
> >http://maps/temp/gm_rounded_corners.html
>
> OOPSS! Wrong URL. This is the right one:http://maps.forum.nu/temp/gm_rounded_corners.html
>
> --

> Marcelo -http://maps.forum.nu

[Rossko]

> Hm yea, but it isn't of much use I guess cause it doesn't scale.

Yes, you'd have to do some of your own development and adapt the
technique to a ground overlay
http://code.google.com/apis/maps/documentation/javascript/overlays.html#GroundOverlays

[Avinash Javaji]

Yea I guess I'll have to experiment with that. I shall go work on it.
Hopefully I can come up with something.

On Dec 30, 4:31 am, Rossko <ros...@culzean.clara.co.uk> wrote:
> > Hm yea, but it isn't of much use I guess cause it doesn't scale.
>
> Yes, you'd have to do some of your own development and adapt the

> technique to a ground overlayhttp://code.google.com/apis/maps/documentation/javascript/overlays.ht...

[Berry Ratliff]

On Dec 30, 7:35 am, Avinash Javaji <avinashjav...@gmail.com> wrote:
> Yea I guess I'll have to experiment with that. I shall go work on it.
> Hopefully I can come up with something.

It can be done in an "OverlayView" using CANVAS:

http://home.provide.net/~bratliff/polycluster/experiment/hawaii.html

http://home.provide.net/~bratliff/polycluster/experiment/alaska.html

Click the "Reverse" button to invert the poly.