2 double latitude = double .Parse( " -122.34942 " );
3
4 Pushpin pushpin = new Pushpin();
5 pushpin.Location = new Location(latitude, longitude);
从上可以看书,实现定位还是使用的上一篇文章中介绍的Location类。呵呵,多记一遍~~~~那如何加入在地图中了,其实很简单的,Bing Maps地图控件直接提供了图钉层,通过内嵌的方式既可加入图订层,默认使用Bing Maps提供的图形标记。
2 Center ="33.845881352,105.165628188471" ZoomLevel ="6.0" >
3 < m:Pushpin Location ="33.845881352,105.165628188471" ></ m:Pushpin >
4 </ m:Map >
不错,要在地图上加上一个图钉层就是这么简单,并直接定位于33.845881352,105.165628188471这个坐标之上,知道这个坐标是那里吗?他就在俺们“China”上,不行你可以看看下面的截图:
通过上述我们成功的添加上了一个小图钉层在地图上,除了添加图钉外,我们还可以自定义添加图形、图片、视频等在地图上,要实现添加图形、图片或视频等数据到地图上,需要使用Bing Maps为我们提供的地图图层(MapLayer)来实现,如下:
2 Center ="33.845881352,105.165628188471" ZoomLevel ="6.0" >
3 < m:Pushpin Location ="33.845881352,105.165628188471" x:Name ="mayPushpin" ></ m:Pushpin >
4 < m:MapLayer x:Name ="myMapLayer" ></ m:MapLayer >
5 </ m:Map >
如上在地图中加入了一空白地图图层,接下来就可以使用程序动态在地图图层上添加自己想加的东西了,比如上面我们已经定位到了中国地图区域,接下来我们将中国国旗插上地图可以吗?答案是肯定的,如何做?
2 {
3 double longitude = double.Parse(this.tbLongitude2.Text.Trim());
4 double latitude = double.Parse(this.tbLatitude2.Text.Trim());
5
6 Location location = new Location(latitude, longitude);
7
8 Image image = new Image();
9 image.Source = new BitmapImage(new Uri("http://localhost:2986/Images/China.jpg", UriKind.RelativeOrAbsolute));
10 image.Stretch = Stretch.None;
11 image.ImageFailed += delegate(object senders, ExceptionRoutedEventArgs ex)
12 { };
13 PositionOrigin position = new PositionOrigin(1.0, 1.0);
14
15 this.myMapLayer.AddChild(image, location, position);
16 }
同样通过Location进行坐标的精度和纬度定位,通过将制定的图片序列为Image对象作为一个可显示的对象添加到地图图层就OK了。效果如下:
OK,成功的在地图上插上了中国国旗!~~~~~Silverlight完整代码如下:
2 xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
3 xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"
4 xmlns:m ="clr-namespace:Microsoft.Maps.MapControl;assembly=Microsoft.Maps.MapControl"
5 xmlns:d ="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc ="http://schemas.openxmlformats.org/markup-compatibility/2006"
6 mc:Ignorable ="d" d:DesignWidth ="500" d:DesignHeight ="500" >
7 < Grid x:Name ="LayoutRoot" Width ="500" Height ="500" >
8 < m:Map CredentialsProvider ="AkzZURoD0H2Sle6Nq_DE7pm7F3xOc8S3CjDTGNWkz1EFlJJkcwDKT1KcNcmYVINU" x:Name ="map"
9 Center ="33.845881352,105.165628188471" ZoomLevel ="6.0" >
10 < m:Pushpin Location ="33.845881352,105.165628188471" x:Name ="mayPushpin" ></ m:Pushpin >
11 < m:MapLayer x:Name ="myMapLayer" ></ m:MapLayer >
12 </ m:Map >
13 < StackPanel HorizontalAlignment ="Left" VerticalAlignment ="Bottom" Width ="180" Height ="200" Background ="Gray" >
14 < TextBlock Text ="精度:" ></ TextBlock >
15 < TextBox x:Name ="tbLongitude" ></ TextBox >
16 < TextBlock Text ="纬度:" ></ TextBlock >
17 < TextBox x:Name ="tbLatitude" ></ TextBox >
18 < TextBlock Text =" " ></ TextBlock >
19 < TextBlock Text ="精度:" ></ TextBlock >
20 < TextBox x:Name ="tbLongitude2" ></ TextBox >
21 < TextBlock Text ="纬度:" ></ TextBlock >
22 < TextBox x:Name ="tbLatitude2" ></ TextBox >
23 < Button x:Name ="btnAddPushpin" Click ="btnAddPushpin_Click" Content ="添加五星红旗" ></ Button >
24 </ StackPanel >
25 </ Grid >
26 </ UserControl >
27
本篇暂介绍到这里,希望提到抛砖引玉的效果,更详细的内容大家可参考官方提供的开发Silverlight和Bing Maps的朋友前来讨论~~~