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我真的想在WPF中創建自己的地圖控件，因爲唯一適合我需求的地方就是Google Maps JavaScript API，因爲它可以完成我所需要的任何操作，僅適用於網絡和移動設備，我嘗試過Bing和ESRI地圖，但他們無法做到我想要的。從零開始創建一個簡單的WPF地圖控件
我已經開始了一個小實驗項目，看是否縮放時我可以加載瓷磚和它種作品，這裏是代碼：
<ScrollViewer Margin="10" PanningMode="Both" HorizontalScrollBarVisibility="Visible">
<Canvas x:Name="lyrTiles" Height="3000" Width="3000"/>
</ScrollViewer>
<Grid x:Name="lyrControl" Margin="10">
<Button x:Name="moveUp" Content="U" HorizontalAlignment="Left" Margin="35,10,0,0" VerticalAlignment="Top" Width="20" Height="20"/>
<Button x:Name="moveRight" Content="R" HorizontalAlignment="Left" Margin="55,30,0,0" VerticalAlignment="Top" Width="20" Height="20"/>
<Button x:Name="moveDown" Content="D" HorizontalAlignment="Left" Margin="35,50,0,0" VerticalAlignment="Top" Width="20" Height="20"/>
<Button x:Name="moveLeft" Content="L" HorizontalAlignment="Left" Margin="15,30,0,0" VerticalAlignment="Top" Width="20" Height="20"/>
<Button x:Name="zoomIn" Content="ZI" HorizontalAlignment="Left" Margin="35,81,0,0" VerticalAlignment="Top" Width="20" Height="20"/>
<Button x:Name="zoomOut" Content="ZO" HorizontalAlignment="Left" Margin="35,311,0,0" VerticalAlignment="Top" Width="20" Height="20"/>
<Slider x:Name="zoomSlider" HorizontalAlignment="Left" Margin="35,106,0,0" VerticalAlignment="Top" Orientation="Vertical" Height="200" Width="20" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Interval="1"/>
<Button x:Name="typeHybrid" Content="Hybrid" HorizontalAlignment="Right" Margin="0,10,65,0" VerticalAlignment="Top" Width="50" Height="15" Padding="0,-1,0,0" FontSize="10"/>
<Button x:Name="typeTerrain" Content="Terrain" HorizontalAlignment="Right" Margin="0,10,10,0" VerticalAlignment="Top" Width="50" Height="15" Padding="0,-1,0,0" FontSize="10"/>
<Button x:Name="typeSatellite" Content="Satellite" HorizontalAlignment="Right" Margin="0,10,120,0" VerticalAlignment="Top" Width="50" Height="15" Padding="0,-1,0,0" FontSize="10"/>
<Button x:Name="typeRoad" Content="Road" HorizontalAlignment="Right" Margin="0,10,175,0" VerticalAlignment="Top" Width="50" Height="15" Padding="0,-1,0,0" FontSize="10"/>
<Label x:Name="copyright" Content="Map data ©2014 Google" HorizontalAlignment="Right" VerticalAlignment="Bottom" Padding="0" Width="200" FontSize="10" FontFamily="Calibri" FontWeight="Bold"/>
</Grid>
<Canvas x:Name="lyrActive" Margin="10,10,27,28" MouseWheel="lyrActive_MouseWheel" Background="#00000000"/>
public int zoomLevel = 0;
public int zoomWidth = 2;
public MainWindow()
{
InitializeComponent();
Image i = new Image(); i.Width = 250; i.Height = 250; i.Margin = new Thickness(0, 0, 0, 0);
i.Source = new BitmapImage(new Uri("https://a.tiles.mapbox.com/v3/examples.map-9ijuk24y/0/0/0.png"));
lyrTiles.Children.Add(i);
}
private void lyrActive_MouseWheel(object sender, MouseWheelEventArgs e)
{
if (e.Delta > 0)
{
lyrTiles.Children.Clear();
zoomLevel += 1; zoomWidth = zoomWidth + zoomWidth/2;
for (int x = 0; x < zoomWidth; x++)
{
for (int y = 0; y < zoomWidth; y++)
{
lyrTiles.Children.Add(new Image()
{
Margin = new Thickness(250 * x, 250 * y, 0, 0),
Source = new BitmapImage(new Uri("https://a.tiles.mapbox.com/v3/examples.map-9ijuk24y/" + zoomLevel + "/" + x + "/" + y + ".png"))
});
}
}
}
}
private void ScrollViewer_MouseWheel(object sender, MouseWheelEventArgs e)
{
if (e.Delta > 0)
{
lyrTiles.Children.Clear();
zoomLevel += 1; zoomWidth = zoomWidth + zoomWidth/2;
for (int x = 0; x < zoomWidth; x++)
{
for (int y = 0; y < zoomWidth; y++)
{
lyrTiles.Children.Add(new Image()
{
Margin = new Thickness(250 * x, 250 * y, 0, 0),
Source = new BitmapImage(new Uri("https://a.tiles.mapbox.com/v3/examples.map-9ijuk24y/" + zoomLevel + "/" + x + "/" + y + ".png"))
});
}
}
}
}
這是我應該渲染瓷磚的正確方法？我知道我必須刪除那些看不見的東西，但這只是一個非常非常簡單的項目，以查看我實際上可以做些什麼來製作地圖。我如何開始使這項工作更好？
另外，我認爲最重要和最重要的事情是座標，因爲它們都是從地圖中心的所有位置使用的，因此它可以下載正確的圖塊以將標記放置在特定位置。我怎麼能這樣做，我需要某種巨大的經緯度軸？