Raster layer (GeoPackage)

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Sample viewer app

Display a raster contained in a GeoPackage.

screenshot

Use case

GeoPackages are designed to simplify file management and transfer. They can store raster files (as well as other types of data). An end-user wishing to transfer rasters from ArcGIS Pro or between runtime apps, might need to import raster files from GeoPackages into their map to view and analyze the data.

How to use the sample

When the sample starts, a raster will be loaded from a GeoPackage and displayed in the map view.

How it works

  1. Create and load a GeoPackage, specifying the path to the local .gpkg file.
  2. When it is done loading, get the GeoPackageRasters from the geopackage.
  3. Construct a RasterLayer with the geopackage raster you want to use.
  4. Add the raster layer to the map.

Relevant API

  • GeoPackage
  • GeoPackageRaster
  • RasterLayer

Offline Data

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

Link Local Location
Aurora, Colorado GeoPackage <userhome>/ArcGIS/Runtime/Data/gpkg/AuroraCO.gpkg

About the data

The Aurora Colorado GeoPackage holds datasets that cover Aurora, Colorado. The raster that is opened and displayed shows airport noise levels.

Tags

container, data, image, import, layer, OGC, package, raster, visualization

Sample Code

RasterLayerGeoPackage.qmlRasterLayerGeoPackage.cppRasterLayerGeoPackage.h
                               
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// [WriteFile Name=RasterLayerGeoPackage, Category=Layers]
// [Legal]
// Copyright 2017 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 Esri.Samples 1.0

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

    // add a mapView component
    MapView {
        anchors.fill: parent
        objectName: "mapView"
    }
}

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