Sorry, you can't use the visualization API without a network connection:

http://code.google.com/apis/visualization/faq.html#localdownload

The communication you see is just an attempt to see if there are any new
versions of GWT released.   there are, it just puts up a notice message.
 This is done in the background, and the software should work fine if that
resource is not available..
 <http://code.google.com/apis/visualization/faq.html#localdownload>
On Wed, Mar 9, 2011 at 8:48 AM, Ferdinand Ng <[email protected]> wrote:

> Dear Eric,
>
> I think I found what is the problem, I do not have "GWT Developer Plugin"
> for my IE. Since my working networking does not have direct internet
> connection, and security rule within my company, I cannot get the plugin
> installed at the moment. Do you know if possible that I can have to graph
> displaying without this Plugin?
>
> I want to ask one strange behavior I discovered today. I ran the same
> example in my home PC, with the GWT developer plugin installed, I saw that
> internally, when I load us the sample page, it internally has some
> communication with google server. I though it is all data coming from my
> sample program, how come it required to communicate with google server?
>
> Thank you very much for your help.
>
> Best Regards
> Ferdinand Ng
>
>
> On Wed, Mar 9, 2011 at 8:58 AM, Eric Ayers <[email protected]> wrote:
>
>> I assume this isn't verbatim because Window.alert() is capitalized.
>>
>> Did you look at the Chrome/Safari Inspector or Firebug to see if there are
>> any JavaScript exceptions happening?
>> Did you try debugging this in GWT DevMode and setting a break point in you
>> run() callback?
>>
>> On Tue, Mar 8, 2011 at 9:23 AM, Ferdinand Ng <[email protected]> wrote:
>>
>>> Dear All Experts,
>>>
>>> I am new to GWT and Visualization wrapper, I try out the example
>>> SimpleViz.java shown in the GWT web. Unfortunately I can't get the
>>> sample works,
>>>
>>> ......
>>> public class SimpleViz implements EntryPoint {
>>>  public void onModuleLoad() {
>>>    // Create a callback to be called when the visualization API
>>>    // has been loaded.
>>>    Runnable onLoadCallback = new Runnable() {
>>>      public void run() {
>>>        window.alert("3");
>>>        Panel panel = RootPanel.get();
>>>
>>>        // Create a pie chart visualization.
>>>        PieChart pie = new PieChart(createTable(), createOptions());
>>>
>>>        pie.addSelectHandler(createSelectHandler(pie));
>>>        panel.add(pie);
>>>        window.alert("4");
>>>      }
>>>    };
>>>
>>>    // Load the visualization api, passing the onLoadCallback to be
>>> called
>>>    // when loading is done.
>>>    window.alert("1");
>>>    VisualizationUtils.loadVisualizationApi(onLoadCallback,
>>> PieChart.PACKAGE);
>>>    window.alert("2");
>>>  }
>>> .......
>>>
>>> I tried it out and it only print 1 and 2, not printing 3 and 4. It
>>> seems that the Runnable object was not called when the package is
>>> finished loading. Since there is no error and no return code, I can't
>>> really judge by where it goes wrong,
>>>
>>> if anyone has any idea, please shine some light on me. Was stucked in
>>> this for 2 days...
>>>
>>> Best Regards
>>> Ferdi
>>>
>>> --
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>>>
>>>
>>
>>
>> --
>> Eric Z. Ayers
>> Google Web Toolkit, Atlanta, GA USA
>>
>>
>


-- 
Eric Z. Ayers
Google Web Toolkit, Atlanta, GA USA

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