Improved MapPanel.ViewportPosition, added moving item to sample application.

SampleApps/SampleApplication/MainWindow.xaml

@@ -65,7 +65,7 @@
         </Style>
         <Style x:Key="PushpinItemStyle" TargetType="map:MapItem">
             <Setter Property="map:MapPanel.Location" Value="{Binding Location}"/>
-            <Setter Property="Visibility" Value="{Binding (map:MapPanel.IsInsideMapBounds), Converter={StaticResource BooleanToVisibilityConverter}, RelativeSource={RelativeSource Self}}"/>
+            <Setter Property="Visibility" Value="{Binding (map:MapPanel.ViewportPosition).IsInside, Converter={StaticResource BooleanToVisibilityConverter}, RelativeSource={RelativeSource Self}}"/>
             <Setter Property="HorizontalAlignment" Value="Left"/>
             <Setter Property="VerticalAlignment" Value="Bottom"/>
             <Setter Property="Template">
@@ -103,7 +103,7 @@
                                  ItemContainerStyle="{StaticResource PushpinItemStyle}"
                                  IsSynchronizedWithCurrentItem="True"/>
             <map:Pushpin Location="53.5,8.2" Background="Yellow" Foreground="Blue" Content="N 53° 30' E 8° 12'"
-                         Visibility="{Binding (map:MapPanel.IsInsideMapBounds), Converter={StaticResource BooleanToVisibilityConverter}, RelativeSource={RelativeSource Self}}"/>
+                         Visibility="{Binding (map:MapPanel.ViewportPosition).IsInside, Converter={StaticResource BooleanToVisibilityConverter}, RelativeSource={RelativeSource Self}}"/>
             <TextBlock HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="2,0,0,0" FontSize="10"
                        Text="{Binding MainTileLayer.Description, ElementName=map}"/>
         </map:Map>
@@ -119,7 +119,7 @@
                 <Slider Name="headingSlider" ToolTip="Heading" Margin="4,0,4,0" Width="100" Minimum="0" Maximum="360" SmallChange="10" LargeChange="45"
                         Value="{Binding TargetHeading, ElementName=map}"/>
                 <CheckBox ToolTip="Map Overlay" Margin="4,0,4,0" VerticalAlignment="Center" Content="Seamarks" Click="SeamarksClick"/>
-                <ComboBox Name="tileLayerComboBox" ToolTip="Main Tile Layer" Margin="4,0,4,0" DisplayMemberPath="Name" SelectedIndex="0">
+                <ComboBox Name="tileLayerComboBox" ToolTip="Main Tile Layer" Margin="4,0,0,0" DisplayMemberPath="Name" SelectedIndex="0">
                     <ComboBox.Items>
                         <map:TileLayer Name="OpenStreetMap" Description="© {y} OpenStreetMap Contributors, CC-BY-SA"
                                        TileSource="http://{c}.tile.openstreetmap.org/{z}/{x}/{y}.png"/>

SampleApps/SampleApplication/MainWindow.xaml.cs

@@ -1,7 +1,9 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
+using System.Windows.Threading;
 using Caching;
 using MapControl;
 
@@ -9,6 +11,12 @@ namespace SampleApplication
 {
     public partial class MainWindow : Window
     {
+        private SamplePoint movingPoint = new SamplePoint
+        {
+            Name = "Moving",
+            Location = new Location(53.5, 8.25)
+        };
+
         public MainWindow()
         {
             if (Properties.Settings.Default.UsePersistentCache)
@@ -67,6 +75,7 @@ namespace SampleApplication
                     Name = "Buhne 10",
                     Location = new Location(53.49350, 8.15563)
                 });
+            points.Add(movingPoint);
 
             ICollection<object> pushpins = (ICollection<object>)Resources["Pushpins"];
             pushpins.Add(
@@ -93,6 +102,22 @@ namespace SampleApplication
                     Name = "Eckwarderhörne",
                     Location = new Location(53.5207, 8.2323)
                 });
+
+            DispatcherTimer timer = new DispatcherTimer();
+            timer.Interval = TimeSpan.FromSeconds(0.05);
+            timer.Tick += MovePoint;
+            timer.Start();
+        }
+
+        private void MovePoint(object sender, EventArgs e)
+        {
+            movingPoint.Location = new Location(movingPoint.Location.Latitude + 0.0005, movingPoint.Location.Longitude + 0.001);
+
+            if (movingPoint.Location.Latitude > 54d)
+            {
+                movingPoint.Name = "Stopped";
+                ((DispatcherTimer)sender).Stop();
+            }
         }
 
         private void MapManipulationInertiaStarting(object sender, ManipulationInertiaStartingEventArgs e)

SampleApps/SampleApplication/SampleItems.cs

@@ -1,12 +1,43 @@
 using System.Collections.ObjectModel;
 using MapControl;
+using System.ComponentModel;
 
 namespace SampleApplication
 {
-    class SamplePoint
+    class SamplePoint : INotifyPropertyChanged
     {
-        public string Name { get; set; }
-        public Location Location { get; set; }
+        private string name;
+        private Location location;
+
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        public string Name
+        {
+            get { return name; }
+            set
+            {
+                name = value;
+                OnPropertyChanged("Name");
+            }
+        }
+
+        public Location Location
+        {
+            get { return location; }
+            set
+            {
+                location = value;
+                OnPropertyChanged("Location");
+            }
+        }
+
+        private void OnPropertyChanged(string propertyName)
+        {
+            if (PropertyChanged != null)
+            {
+                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
+            }
+        }
     }
 
     class SamplePolyline