Updated Terain Classification sandcastle tileset

Author: ggetz

Apps/Sandcastle/gallery/3D Tiles Terrain Classification.html

@@ -38,7 +38,7 @@
 // Vector 3D Tiles are experimental and the format is subject to change in the future.
 // For more details, see:
 //    https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/3d-tiles-next/TileFormats/VectorData
-var tileset = new Cesium.Cesium3DTileset({ url: Cesium.IonResource.fromAssetId(3841) });
+var tileset = new Cesium.Cesium3DTileset({ url: Cesium.IonResource.fromAssetId(5737) });
 viewer.scene.primitives.add(tileset);
 
 tileset.style = new Cesium.Cesium3DTileStyle({