Hillshade renderer

View in

Android

Forms

UWP

WPF

WinUI

iOS

View on GitHub

Apply a hillshade renderer to a raster.

Image of hillshade renderer

Use case

An environmental agency may track coastal erosion by comparing images of an area taken over a a longer period of time with hillshade renderers applied.

How to use the sample

Choose and adjust the settings to update the hillshade renderer on the raster layer. The sample allows you to change the Altitude, Azimuth, and Slope Type.

How it works

Create a Raster from a grayscale raster file.
Create a RasterLayer from the raster.
Create a Basemap from the raster layer and set it to the map.
Create a HillshadeRenderer, specifying the slope type and other properties, new HillshadeRenderer(Altitude, Azimuth, ZFactor, SlopeType, PixelSizeFactor, PixelSizePower, OutputBitDepth).
Set the hillshade renderer to be used on the raster layer with rasterLayer.Renderer.

Relevant API

Basemap
HillshadeRenderer
Raster
RasterLayer

Offline data

This sample uses a digital elevation map from ArcGIS Online.

Sample Code

RasterHillshade.xaml

RasterHillshade.xaml.cs

Use dark colors for code blocksCopy
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="ArcGISRuntime.Samples.RasterHillshade.RasterHillshade"
             xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:esriUI="clr-namespace:Esri.ArcGISRuntime.Xamarin.Forms;assembly=Esri.ArcGISRuntime.Xamarin.Forms">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="180" />
            <RowDefinition />
        </Grid.RowDefinitions>
        <esriUI:MapView x:Name="MyMapView" Grid.Row="1" />
        <Grid Grid.Row="0"
              Margin="2"
              HorizontalOptions="CenterAndExpand"
              VerticalOptions="Start">
            <Grid.ColumnDefinitions>
                <ColumnDefinition />
                <ColumnDefinition Width="2*" />
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="auto" />
                <RowDefinition />
                <RowDefinition />
                <RowDefinition />
            </Grid.RowDefinitions>
            <Label Grid.Row="0"
                   Grid.Column="0"
                   Text="Slope type:"
                   VerticalOptions="Center" />
            <Picker x:Name="SlopeTypePicker"
                    Grid.Row="0"
                    Grid.Column="1"
                    HorizontalOptions="StartAndExpand"
                    VerticalOptions="CenterAndExpand" />
            <Label Grid.Row="1"
                   Grid.Column="0"
                   HorizontalTextAlignment="End"
                   Text="Altitude:"
                   VerticalOptions="Center" />
            <Slider x:Name="AltitudeSlider"
                    Grid.Row="1"
                    Grid.Column="1"
                    Maximum="90"
                    MaximumTrackColor="CadetBlue"
                    Minimum="0"
                    MinimumTrackColor="CadetBlue" />
            <Label Grid.Row="2"
                   Grid.Column="0"
                   HorizontalTextAlignment="End"
                   Text="Azimuth:"
                   VerticalOptions="Center" />
            <Slider x:Name="AzimuthSlider"
                    Grid.Row="2"
                    Grid.Column="1"
                    Maximum="360"
                    MaximumTrackColor="CadetBlue"
                    Minimum="0"
                    MinimumTrackColor="CadetBlue" />
            <Button x:Name="ApplyHillshadeButton"
                    Grid.Row="3"
                    Grid.ColumnSpan="2"
                    Margin="20,0"
                    Clicked="ApplyHillshadeButton_Click"
                    HorizontalOptions="CenterAndExpand"
                    Text="Apply hillshade"
                    VerticalOptions="Center" />
        </Grid>
    </Grid>
</ContentPage>