VectorTileDataProviderBase Class

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v20.1.dll

Declaration

public abstract class VectorTileDataProviderBase :
    ImageTileDataProvider,
    IVectorTileStreamProvider

Public MustInherit Class VectorTileDataProviderBase
    Inherits ImageTileDataProvider
    Implements IVectorTileStreamProvider

Remarks

Follow the steps below to implement a provider that loads tiles from a custom source.

• Create a provider class that implements VectorTileDataProviderBase.
• Implement the VectorTileDataProviderBase.GetStream method so that it returns a tile as a sequence of bytes for specific coordinates in the tile grid at the specified zoom level.

• Assign the provider to the ImageLayer.DataProvider property. Note that the ImageLayer.DataProvider is a content property. You can declare a provider in XAML directly after a layer's declaration without wrapping it in opening and closing ImageLayer.DataProvider tags.

  • XAML

  <dxm:MapControl>
      <dxm:ImageLayer>
          <local:VectorTileProvider/>
      </dxm:ImageLayer>
  </dxm:MapControl>
  

  • C#
  • VB.NET

  public class VectorTileProvider : VectorTileDataProviderBase {
      public override Stream GetStream(long x, long y, long level) {
          // Your implementation here.            
      }
  }