Arcgis silverlight-6 element layer-meida

1、功能介绍
    This sample demonstrates how to transform and display a media element (video) on a map.  The video placed initially using the ElementLayer.Envelope attached property.  A simple rotation transformation is then used to orient the video to an acceptable location over the base map.  More accurate placement will require a more complex transformation.     

    展示一个media element (video) on a map

 

2、代码详解

MainPage.axml中

<UserControl x:Class="SilverlightApplication1.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"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400" xmlns:esri="http://schemas.esri.com/arcgis/client/2009">

    <Grid x:Name="LayoutRoot" Background="White">

        <esri:Map x:Name="MyMap" Extent="-121,32,-113,36">
            <esri:ArcGISTiledMapServiceLayer ID="StreetMapLayer" 
                    Url="http://server.arcgisonline.com/ArcGIS/rest/services/ESRI_StreetMap_World_2D/MapServer"/>

            <esri:ElementLayer ID="MyMediaLayer" > //ID=MyMediaLayer
                <esri:ElementLayer.Children>
                    <!-- MediaElement source can define relative path from the perspective of the xap file. -->
                    <MediaElement xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
                                Source="http://serverapps.esri.com/media/scec-shakeout-simulation-rt.wmv"  //Media地址
                                IsMuted="True" Stretch="Fill" MediaEnded="Media_MediaEnded" //无声，stretch模式，media终止时触发的函数
                                esri:ElementLayer.Envelope="-120.309183241879,32.3360853442552,-114.543827787924,35.579097787105">//meida的位置
                        <MediaElement.RenderTransform> //meida倾斜一个角度播放
                            <RotateTransform Angle="-1.1412502857301" />
                        </MediaElement.RenderTransform>
                    </MediaElement>
                </esri:ElementLayer.Children>
            </esri:ElementLayer>
        </esri:Map>

    </Grid>
</UserControl>

 

 

MainPage.axml.cs中 

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightApplication1
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private void Media_MediaEnded(object sender, RoutedEventArgs args)
        {
            // Repeat play of the video
            MediaElement media = sender as MediaElement;
            media.Position = TimeSpan.FromSeconds(0);//从第一秒开始重放
            media.Play();
        }
    }
}

 

 

3、界面见http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#MediaLayer