Set the terrain surface with elevation described by a raster file.
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
Create a Scene and add it to a SceneView.
Create a RasterElevationSource with a list of raster file paths.
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
CreateTerrainSurfaceRaster.cs
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// 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 Android.App;
using Android.OS;
using Android.Views;
using Android.Widget;
using ArcGISRuntime.Samples.Managers;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
using Surface = Esri.ArcGISRuntime.Mapping.Surface;
namespaceArcGISRuntimeXamarin.Samples.CreateTerrainSurfaceRaster{
[Activity (ConfigurationChanges=Android.Content.PM.ConfigChanges.Orientation | Android.Content.PM.ConfigChanges.ScreenSize)]
[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")]
publicclassCreateTerrainSurfaceRaster : Activity {
// Hold references to the UI controls.private SceneView _mySceneView;
protectedoverridevoidOnCreate(Bundle bundle) {
base.OnCreate(bundle);
Title = "Create terrain surface from a local raster";
CreateLayout();
Initialize();
}
privatevoidInitialize() {
// Create the scene. _mySceneView.Scene = new Scene(BasemapStyle.ArcGISImageryStandard);
// 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);
}
privatevoidCreateLayout() {
// Create a new vertical layout for the app.var layout = new LinearLayout(this) {Orientation = Orientation.Vertical};
// Add the map view to the layout. _mySceneView = new SceneView(this);
layout.AddView(_mySceneView);
// Show the layout in the app. SetContentView(layout);
}
protectedoverridevoidOnDestroy() {
base.OnDestroy();
// Remove the sceneview (_mySceneView.Parent as ViewGroup).RemoveView(_mySceneView);
_mySceneView.Dispose();
_mySceneView = null;
}
}
}