EXTERNAL FEEDS (GEORSS, KMZ)

[MarieQB]

I am wondering if I could create a information layer which dynamically feeds information from external source such as the eartthquake from USGS.GOV web site, i.e. http://earthquake.usgs.gov/eqcenter/catalogs/eqs7day-age_src.kmz. 

If so, could you send me a sample code?

 

[Andrey]

Hi MarieQB,

Yes, you can use external source. You can load a file from internet using the WebClient class. The map control does not support kmz files directly, but you can use the following link to download the sharpziplib library:
http://slsharpziplib.codeplex.com/

The sample code of loading kmz file is below.

private void LoadKML(object sender, RoutedEventArgs e)

{

    WebClient client = new WebClient();

    client.OpenReadCompleted += new OpenReadCompletedEventHandler(client_OpenReadCompleted);

    client.OpenReadAsync(new Uri("http://earthquake.usgs.gov/eqcenter/catalogs/eqs7day-age_src.kmz"));

}


private void client_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)

{

    ZipFile zipFile = new ZipFile(e.Result);


    List<FrameworkElement> list = KmlReader.Read(zipFile.GetInputStream(0));

    foreach (FrameworkElement element in list)

    {

        this.informationLayer.Items.Add(element);

    }

}

Best wishes,
Andrey Murzov
the Telerik team

[Michael]

Do you have support for displaying GeoRSS feeds?  If so, please throw a quick code sample (or link to one).

--Michael

[Andrey]

Hi Michael,

Presently, the map control has not the feature you requested. Also currently it is not in our plans. I will make sure it is reconsidered when discussing our future plans, but I am afraid no certain time frame can be given at the moment.

All the best,
Andrey Murzov
the Telerik team

[shawn]

Audrey,

I am getting started with the silverlight map.  Do you have a starter project I can use that is similar to your demo layout and theme?

[Andrey]

Hello shawn,

The QSF is very complex application. I wouldn't recommend to use it as a starter project. The simple XAML code which uses the map control are below.

<UserControl x:Class="RadMapStarter.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">
    <Grid x:Name="LayoutRoot" Background="White">
        <telerik:RadMap x:Name="radMap"
                        Center="40,-100"
                        ZoomLevel="4">
            <telerik:RadMap.Provider>
                <telerik:OpenStreetMapProvider />
            </telerik:RadMap.Provider>
        </telerik:RadMap>
    </Grid>
</UserControl>

I have attached a sample solution. Just update the references to the three following DLLs:
- Telerik.Windows.Controls.dll
- Telerik.Windows.Controls.DataVisualization.dll
- Telerik.Windows.Data.dll

Also for more information I would recommend to take a look to the following help topic:
http://www.telerik.com/help/silverlight/radmap-getting-started.html

Best wishes,
Andrey Murzov
the Telerik team