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 local raster file paths, in this case a single .dt2 file
Add the raster elevation source to the scene's base surface.
Relevant API
RasterElevationSource
Surface
Offline data
Read more about how to set up the sample's offline data here.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
// [WriteFile Name=CreateTerrainSurfaceFromLocalRaster, Category=Scenes]// [Legal]// 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.// [Legal]import QtQuick
import Esri.ArcGISRuntime
import Esri.ArcGISExtras
Rectangle {
id: rootRectangleclip: truewidth: 800height: 600 readonly property string montereyRasterElevationPath: {
Qt.platform.os === "ios" ?
System.writableLocation(System.StandardPathsDocumentsLocation) + "/ArcGIS/Runtime/Data/raster/MontereyElevation.dt2" :
System.writableLocation(System.StandardPathsHomeLocation) + "/ArcGIS/Runtime/Data/raster/MontereyElevation.dt2" }
SceneView {
id: sceneViewanchors.fill: parentScene {
id: sceneBasemap {
initStyle: Enums.BasemapStyleArcGISImageryStandard
}
Surface {
RasterElevationSource{
// RasterElevationSource takes a list of raster files. Here we provide a list cotaining just a single file.fileUrls: [montereyRasterElevationPath]
// Hook up success/error reporting for the Elevation Source loadonLoadStatusChanged: reportLoadStatus(loadStatus, loadError)
}
}
}
Component.onCompleted: {
// Set the focus on SceneView to initially enable keyboard navigation forceActiveFocus();
// Once the scene view has loaded, apply the camera. setViewpointCameraAndWait(camera);
}
}
functionreportLoadStatus(loadStatus, loadError){
if(loadStatus === Enums.LoadStatusLoaded){
console.info("Loaded raster elevation source succesfully");
}
elseif(loadStatus === Enums.LoadStatusFailedToLoad){
console.warn("Error loading elevation source : ", loadError.message, loadError.additionalMessage);
}
}
// Create the camera to be used as the scene view's viewpoint, looking at Monterey, California..Camera {
id: cameralocation: Point {
x: -121.80// Longitudey: 36.51// Latitudez: 300.0// AltiudespatialReference: SpatialReference { wkid: 4326 }
}
heading: 10.0pitch: 70.0roll: 0.0 }
}