Magnifier

This sample demonstrates the Magnifier control. Click and drag the magnifier over the map to see a zoomed-in view of the map within the magnifying glass. As you can see, layers can be shown within the magnifying glass that are not included within the map.

XAML

<UserControl x:Class="ArcGISWPFSDK.LocalMagnify"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    xmlns:esri="http://schemas.esri.com/arcgis/client/2009">
    <Grid x:Name="LayoutRoot" Background="White">
        <esri:Map x:Name="MyMap" Extent="-15000000,2000000,-7000000,8000000" WrapAround="True" MinimumResolution="2445.98490512499">
            <esri:ArcGISLocalTiledLayer ID="myBaseMap" Path="..\\Data\\TPKs\\Topographic.tpk"/>
        </esri:Map>
        <Grid HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,10,10,0" >
            <Rectangle Fill="#775C90B2" Stroke="Gray"  RadiusX="10" RadiusY="10" Margin="0,0,0,5" >
                <Rectangle.Effect>
                    <DropShadowEffect/>
                </Rectangle.Effect>
            </Rectangle>
            <Rectangle Fill="#66FFFFFF" Stroke="DarkGray" RadiusX="5" RadiusY="5" Margin="10,10,10,15" />
            <Image x:Name="MyMagnifyImage" Source="/Assets/Images/magglass.png"  Canvas.ZIndex="10" Margin="25, 20, 20, 25"
                   Stretch="UniformToFill" Width="32" Height="50"   
                   MouseLeftButtonDown="MyMagnifyImage_MouseLeftButtonDown" />
        </Grid>
        <Canvas>
            <esri:Magnifier x:Name="MyMagnifier" ZoomFactor="3" Canvas.ZIndex="10" Map="{Binding ElementName=MyMap}" >
                <esri:Magnifier.Layers>
                    <esri:ArcGISTiledMapServiceLayer ID="MagnifyImageLayer"
                        Url="http://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer" />
                </esri:Magnifier.Layers>
            </esri:Magnifier>
        </Canvas>
    </Grid>
</UserControl>

C#

using System.Windows.Controls;
using System.Windows.Input;

namespace ArcGISWPFSDK
{
    public partial class LocalMagnify : UserControl
    {
        public LocalMagnify()
        {
            InitializeComponent();
        }

        private void MyMagnifyImage_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            MyMagnifier.Enabled = !MyMagnifier.Enabled;
        }
    }
}

VB.NET

Imports System.Windows.Controls
Imports System.Windows.Input

Namespace ArcGISWPFSDK
    Partial Public Class LocalMagnify
        Inherits UserControl
        Public Sub New()
            InitializeComponent()
        End Sub

        Private Sub MyMagnifyImage_MouseLeftButtonDown(sender As Object, e As MouseButtonEventArgs)
            MyMagnifier.Enabled = Not MyMagnifier.Enabled
        End Sub
    End Class
End Namespace