Using Marker Manager With Ajax Call

[mike osterhout]

I have a tricky problem. I have code like this

$.get('/test.xml', function(xml){
   
   //use xml to create icons and markers
   
});

//I am then forced to use a setTimeout to ensure that this call is finished
//campusMarkers are created above...
setTimeout("addMarkers(markers)", 800);
//this will fail
addMarkers(markers);


IS THERE ANYWAY TO DO THIS WITHOUT A TIMEOUT? Maybe there is an event I can attach onto so that I know my markers are generated before I try to add them to the map

[geoco...@gmail.com]

On Dec 1, 1:07 pm, mike osterhout <mikeosterh...@gmail.com> wrote:
> I have a tricky problem. I have code like this
>
> $.get('/test.xml', function(xml){
>
> //use xml to create icons and markers

>

Put your call to add the markers you created to the marker manager
here.

> });
>
> //I am then forced to use a setTimeout to ensure that this call is
> finished
> //campusMarkers are created above...
> setTimeout("addMarkers(markers)", 800);
> //this will fail
> addMarkers(markers);
>
> IS THERE ANYWAY TO DO THIS WITHOUT A TIMEOUT?

Yes. See above.

-- Larry

[mike osterhout]

Unfortunately it still needs a timeout... In my actual code I have the setTimeout within the ajax callback function.

to be more specific I could place

markerManager.addMarker(marker, marker.minZoom, marker.maxZoom);

directly in my callback function and I will get the following error, or something similar from markermanager...
Uncaught TypeError: Cannot call method 'fromLatLngToDivPixel' of undefined

Would be better if I could only add the markers when I know makermanager is ready.

Thanks tho.

[geoco...@gmail.com]

Sounds like you need to wait for the projection to be loaded. I think
I saw a post discussing this problem, but I wasn't able to find it
with a quick search.

I can't do more than speculate without a link to the patient.

-- Larry

>
> Thanks tho.

[Ciul]

Excuse me, I kinda had similar problem and well:

Do the markers have an InfoWindow attached to them?

If that's the case, you could use the domReady event from InfoWindows.

...
from google.maps.InfoWindow class

Event / Returns / Description
domready None This event is fired when the <div> containing the
InfoWindow's content is attached to the DOM. You may wish to monitor
this event if you are building out your info window content
dynamically.
...

[mike osterhout]

It turns out you have to wait for marker manager to be ready. So after you create the markerManager you have to create a custom event listener that looks like this.

google.maps.event.addListener(markerManager, 'loaded', function() {

//place ajax call in here

});

[mike osterhout]

[geoco...@gmail.com]

That was sort of what I remembered, I just couldn't find the post that
said that, and when I looked for the documentation, I didn't see that
mentioned, still don't for that matter:
http://google-maps-utility-library-v3.googlecode.com/svn/tags/markermanager/1.0/docs/reference.html

-- Larry


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