getBounds is null??

[Nexis]

I'm trying to add markers on google map.

I'm selecting one point and adding this on the google map.

This is my center point. Then i'm trying to get minimum and maximum
lng and lat values from map with getBounds method. But it's not
working. It returns null.


var marker = createMarker(point);
// This is my center point. And I'm setting zoom level as 14
gsmapsrc.setCenter(point, 14);
google.maps.event.addListener(gsmapsrc, 'bounds_changed',
BoundsChanged());


But when event is fired i'm getting getBounds is null
exception.
function BoundsChanged() {

var SouthWestlat = gsmapsrc.getBounds().getSouthWest().lat();
var SouthWestlng = gsmapsrc.getBounds().getSouthWest().lng();
var NorthEastlat = gsmapsrc.getBounds().getNorthEast().lat();
var NorthEastlng = gsmapsrc.getBounds().getNorthEast().lng();
}

[Esa]

You could try the new 'idle' event instead of 'bounds_changed'.

'idle' is fired slightly later.

[Nexis]

This code isn't working.
google.maps.event.addListener(gsmapsrc, 'bounds_changed',
BoundsChanged());

But this is working
setTimeout(BoundsChanged()', 500);

???

[Nexis]

sorry but idle event isn't working :((

[Esa]

On Sep 24, 3:35 pm, Nexis <umitkav...@gmail.com> wrote:
> sorry but idle event isn't working :((

Do you mean that it is fired too late? Or is it not fired at all with
a certain browser?

I can see it fired after each map movement. Like 'moveend' of v2.
http://koti.mbnet.fi/ojalesa/v3/v3events.htm

[Nexis]

it's fired but getBounds returns null.

[Mike Williams]

Wasn't it Nexis who wrote:
>
>This code isn't working.
> google.maps.event.addListener(gsmapsrc, 'bounds_changed',
>BoundsChanged());

That syntax tells the browser to call BoundsChanged() *immediately* and
expects it to return a function reference. When the event triggers, the
callback function passes control to whatever BoundsChanged() returned.
That's not what you want.

In this case you can write

google.maps.event.addListener(gsmapsrc, 'bounds_changed',BoundsChanged);

Without the (), "BoundsChanged" is a function reference.
With the (), "BounsdChanged()" calls the function now and uses whatever
it returns as the function reference.

In the general case, where you have variables to pass from *your* code
to the callback function, you'd write

function createListener(foo,bar,baz) {
google.maps.event.addListener(gsmapsrc, 'bounds_changed', function() {
BoundsChanged(foo,bar,baz);
});
}

using the outer function to hold Function Context on the variables.

--
Mike Williams
Gentleman of Leisure

[Nexis]

thanks for solving my problem =)