Skip To Content ArcGIS for Developers Sign In Dashboard

ArcGIS Runtime SDK for Qt

Create terrain surface from a local tile package

Sample Viewer View Sample on GitHub

Set the terrain surface with elevation described by a local tile package.

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 an ArcGISTiledElevationSource from a local tile package (.tpk) by setting the url to the local file.
  3. Add the tiled elevation source to the scene's base surface.

Relevant API

  • ArcGISTiledElevationSource
  • Surface

Offline data

Read more about how to set up the sample's offline data here.

The tile package must be a LERC (limited error raster compression) encoded TPK. Details on creating these are in the ArcGIS Pro documentation

Link Local Location
MontereyElevation Tile Package <userhome>/ArcGIS/Runtime/Data/tpk/MontereyElevation.tpk

Additional information

See the ArcGIS Pro Tile Package documentation (since Esri.ArcGISRuntime 100.1) for information on tile packages

Tags

3D, elevation, LERC, surface, terrain, tile cache

Sample Code

import QtQuick 2.6
import Esri.ArcGISRuntime 100.9
import Esri.ArcGISExtras 1.1

Rectangle {
    id: rootRectangle
    clip: true
    width: 800
    height: 600

    readonly property string montereyTpkElevationPath: System.userHomePath + "/ArcGIS/Runtime/Data/tpk/MontereyElevation.tpk"

    SceneView {
        id: sceneView
        anchors.fill: parent

        Scene {
            id: scene
            BasemapImagery {}

            Surface {
                ArcGISTiledElevationSource {
                    url: montereyTpkElevationPath
                    //Hook up success/error reporting for the Elevation Source load
                    onLoadStatusChanged: reportLoadStatus(loadStatus, loadError)
                }
            }
        }

        // Once the scene view has loaded, apply the camera.
        Component.onCompleted: {
            setViewpointCameraAndWait(camera);
        }
    }

    function reportLoadStatus(loadStatus, loadError) {
        if (loadStatus === Enums.LoadStatusLoaded) {
            console.info("Loaded tiled elevation source succesfully")
        }
        else if (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: camera
        location: Point {
            x: -121.80 // Longitude
            y: 36.51 // Latitude
            z: 300.0 // Altiude
            spatialReference: SpatialReference { wkid: 4326 }
        }
        heading: 10.0
        pitch: 70.0
        roll: 0.0
    }
}