Irene,
I don't have a tutorial for you, but it is rather simple and
straightforward. The process goes like this:
<pre>
GeoXmlOverlay.load(key, new GeoXmlLoadCallback() {
@Override
public void onSuccess(String url, GeoXmlOverlay overlay) {
map.addOverlay(overlay);
overlay.gotoDefaultViewport(map);
}
@Override
public void onFailure(String url, Throwable caught) {
Window.alert("Retrieving data for the overlay caused the "
+
"following error:\n\n" + caught.getMessage());
}
});
</pre>
It's a simple call to the static load method of GeoXmlOverlay. It
takes the url of the KML/KMZ file (must be a public location) and a
callback. The callback will contain an actual GeoXmlOverlay object
that can be added to your map via addOverlay. It also has a method
that lets you recenter the map to the overlay itself so in the example
above, I add the overlay to the map and then make sure the new overlay
is visible to the user.
HTH,
Chad Bourque
www.milamade.com
On Feb 8, 4:30 am, Irene <[email protected]> wrote:
> Hi all,
>
> I am developing a small project using GWT with embedded Google Maps. I
> have a KML file representing some 2D elements such as polylines and
> markers, so I would like to know if there is any way of loading these
> data from the GWT project and display it on runtime.
>
> I have found a Demo project called "KmlOverlayDemo.java" but as it is
> part of a bigger example, I do not understand properly the execution
> flow so I can't reproduce this behaviour on my own project. I was
> expecting a more simple case to extend it step by step, does any one
> know any?
>
> Thanks to all
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