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ArcGIS Runtime SDK for .NET

Raster layer (file)

This code sample is available for these platforms:
View Sample on GitHub

Create and use a raster layer made from a local raster file.

Image of raster layer file

Use case

Rasters can be digital aerial photographs, imagery from satellites, digital pictures, or even scanned maps. An end-user will frequently need to import raster files acquired through various data-collection methods 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 file and displayed in the map view.

How it works

  1. Create a Raster from a raster file.
  2. Create a RasterLayer from the raster.
  3. Add it as an operational layer with Map.OperationalLayers.Add(layer).

Relevant API

  • Raster
  • RasterLayer

Offline data

This sample downloads the following items from ArcGIS Online automatically:

Additional information

See the topic What is raster data? in the ArcMap documentation for more information about raster images.

Tags

data, image, import, layer, raster, visualization

Sample Code

<UserControl x:Class="ArcGISRuntime.UWP.Samples.RasterLayerFile.RasterLayerFile"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls">
    <Grid>
        <esriUI:MapView x:Name="MyMapView"/>
    </Grid>
</UserControl>
// 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.

using System;
using ArcGISRuntime.Samples.Managers;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.Rasters;
using Windows.UI.Popups;

namespace ArcGISRuntime.UWP.Samples.RasterLayerFile
{
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        name: "Raster layer (file)",
        category: "Layers",
        description: "Create and use a raster layer made from a local raster file.",
        instructions: "When the sample starts, a raster will be loaded from a file and displayed in the map view.",
        tags: new[] { "data", "image", "import", "layer", "raster", "visualization" })]
	[ArcGISRuntime.Samples.Shared.Attributes.OfflineData("7c4c679ab06a4df19dc497f577f111bd")]
    public partial class RasterLayerFile
    {
        public RasterLayerFile()
        {
            InitializeComponent();

            // Call a function to set up the map
            Initialize();
        }

        private async void Initialize()
        {
            // Add an imagery basemap
            Map myMap = new Map(Basemap.CreateImagery());

            // Get the file name
            string filepath = GetRasterPath();

            // Load the raster file
            Raster myRasterFile = new Raster(filepath);

            // Create the layer
            RasterLayer myRasterLayer = new RasterLayer(myRasterFile);

            // Add the layer to the map
            myMap.OperationalLayers.Add(myRasterLayer);

            // Add map to the mapview
            MyMapView.Map = myMap;

            try
            {
                // Wait for the layer to load
                await myRasterLayer.LoadAsync();

                // Set the viewpoint
                await MyMapView.SetViewpointGeometryAsync(myRasterLayer.FullExtent);
            }
            catch (Exception e)
            {
                await new MessageDialog(e.ToString(), "Error").ShowAsync();
            }
        }

        private static string GetRasterPath()
        {
            return DataManager.GetDataFolder("7c4c679ab06a4df19dc497f577f111bd", "raster-file", "Shasta.tif");
        }
    }
}