Create terrain surface from a local raster

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

screenshot

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 local raster file paths, in this case a single .dt2 file
  3. Add this source to the scene's base surface: Scene::baseSurface::elevationSources::append(rasterElevationSource).

Relevant API

  • RasterElevationSource
  • Surface

Offline data

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

Link Local Location
MontereyElevation Raster <userhome>/ArcGIS/Runtime/Data/raster/MontereyElevation.dt2

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, Raster, Elevation, Surface

Sample Code

CreateTerrainSurfaceFromLocalRaster.qmlCreateTerrainSurfaceFromLocalRaster.cppCreateTerrainSurfaceFromLocalRaster.h
                                 
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// [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 2.6
import QtQuick.Controls 2.2
import Esri.Samples 1.0

Item {

    SceneView {
        id: view
        anchors.fill: parent
    }

    // Declare the C++ instance which creates the scene etc. and supply the view
    CreateTerrainSurfaceFromLocalRasterSample {
        id: model
        sceneView: view
    }
}

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