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ArcGIS Runtime SDK for .NET

Create terrain surface from a local raster

This code sample is available for these platforms:
View Sample on GitHub

Set the terrain surface with elevation described by a raster file.

Image of create terrain surface from local raster

Use case

In a scene view, the terrain surface is what the basemap, operational layers, and graphics are draped onto. For example, when viewing a scene in a mountainous region, applying a terrain surface to the scene will help in recognizing the slopes, valleys, and elevated areas.

How to use the sample

When loaded, the sample will show a scene with a terrain surface applied. Pan and zoom to explore the scene and observe how the terrain surface allows visualizing elevation differences.

How it works

  1. Create a Scene and add it to a SceneView.
  2. Create a RasterElevationSource with a list of raster file paths.
  3. Add this source to the scene's base surface: Scene.BaseSurface.ElevationSources.Add(rasterElevationSource).

Relevant API

  • RasterElevationSource
  • Surface

Additional information

Supported raster formats include:

  • ASRP/USRP
  • CIB1, 5, 10
  • DTED0, 1, 2
  • GeoTIFF
  • HFA
  • HRE
  • IMG
  • JPEG
  • JPEG 2000
  • NITF
  • PNG
  • RPF
  • SRTM1, 2

Tags

3D, elevation, raster, surface, terrain

Sample Code

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:esriUI="clr-namespace:Esri.ArcGISRuntime.Xamarin.Forms;assembly=Esri.ArcGISRuntime.Xamarin.Forms"
             x:Class="ArcGISRuntimeXamarin.Samples.CreateTerrainSurfaceRaster.CreateTerrainSurfaceRaster">
    <Grid>
        <esriUI:SceneView x:Name="MySceneView" />
    </Grid>
</ContentPage>
// Copyright 2019 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an 
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific 
// language governing permissions and limitations under the License.

using ArcGISRuntime.Samples.Managers;
using Esri.ArcGISRuntime.Mapping;
using Xamarin.Forms;

namespace ArcGISRuntimeXamarin.Samples.CreateTerrainSurfaceRaster
{
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        name: "Create terrain surface from a local raster",
        category: "Scene",
        description: "Set the terrain surface with elevation described by a raster file.",
        instructions: "When loaded, the sample will show a scene with a terrain surface applied. Pan and zoom to explore the scene and observe how the terrain surface allows visualizing elevation differences.",
        tags: new[] { "3D", "elevation", "raster", "surface", "terrain" })]
    [ArcGISRuntime.Samples.Shared.Attributes.OfflineData("98092369c4ae4d549bbbd45dba993ebc")]
    public partial class CreateTerrainSurfaceRaster : ContentPage
    {
        public CreateTerrainSurfaceRaster()
        {
            InitializeComponent();
            Initialize();
        }

        private void Initialize()
        {
            // Create the scene.
            MySceneView.Scene = new Scene(Basemap.CreateImagery());

            // Get the path to the elevation raster.
            string packagePath = DataManager.GetDataFolder("98092369c4ae4d549bbbd45dba993ebc", "MontereyElevation.dt2");

            // Create the elevation source from a list of paths.
            RasterElevationSource elevationSource = new RasterElevationSource(new[] {packagePath});

            // Create a surface to display the elevation source.
            Surface elevationSurface = new Surface();

            // Add the elevation source to the surface.
            elevationSurface.ElevationSources.Add(elevationSource);

            // Add the surface to the scene.
            MySceneView.Scene.BaseSurface = elevationSurface;

            // Set an initial camera viewpoint.
            Camera camera = new Camera(36.51, -121.80, 300.0, 0, 70.0, 0.0);
            MySceneView.SetViewpointCamera(camera);
        }
    }
}