Viewshed (location)

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<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="ArcGISRuntime.Samples.ViewshedLocation.ViewshedLocation"
             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="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="auto" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Label Grid.Row="0"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Heading
        </Label>
        <Label Grid.Row="1"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Pitch
        </Label>
        <Label Grid.Row="2"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Horizontal Angle
        </Label>
        <Label Grid.Row="3"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Vertical Angle
        </Label>
        <Label Grid.Row="4"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Minimum Distance
        </Label>
        <Label Grid.Row="5"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Maximum Distance
        </Label>
        <Label Grid.Row="6"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Frustum Visibility
        </Label>
        <Label Grid.Row="7"
               Grid.Column="0"
               HorizontalTextAlignment="End">
            Analysis Visibility
        </Label>

        <Slider x:Name="HeadingSlider"
                Grid.Row="0"
                Grid.Column="1"
                Maximum="360"
                MaximumTrackColor="CadetBlue"
                MinimumTrackColor="CadetBlue"
                ValueChanged="HandleSettingsChange"
                Value="0" />
        <Slider x:Name="PitchSlider"
                Grid.Row="1"
                Grid.Column="1"
                Maximum="180"
                MaximumTrackColor="CadetBlue"
                MinimumTrackColor="CadetBlue"
                ValueChanged="HandleSettingsChange"
                Value="60" />
        <Slider x:Name="HorizontalAngleSlider"
                Grid.Row="2"
                Grid.Column="1"
                Maximum="120"
                MaximumTrackColor="CadetBlue"
                Minimum="1"
                MinimumTrackColor="CadetBlue"
                ValueChanged="HandleSettingsChange"
                Value="75" />
        <Slider x:Name="VerticalAngleSlider"
                Grid.Row="3"
                Grid.Column="1"
                Maximum="120"
                MaximumTrackColor="CadetBlue"
                Minimum="1"
                MinimumTrackColor="CadetBlue"
                ValueChanged="HandleSettingsChange"
                Value="90" />
        <Slider x:Name="MinimumDistanceSlider"
                Grid.Row="4"
                Grid.Column="1"
                Maximum="8999"
                MaximumTrackColor="CadetBlue"
                Minimum="5"
                MinimumTrackColor="CadetBlue"
                ValueChanged="HandleSettingsChange"
                Value="5" />
        <Slider x:Name="MaximumDistanceSlider"
                Grid.Row="5"
                Grid.Column="1"
                Maximum="9999"
                MaximumTrackColor="CadetBlue"
                MinimumTrackColor="CadetBlue"
                ValueChanged="HandleSettingsChange"
                Value="1500" />
        <Switch x:Name="FrustumVisibilityCheck"
                Grid.Row="6"
                Grid.Column="1"
                Toggled="HandleSettingsChange" />
        <Switch x:Name="AnalysisVisibilityCheck"
                Grid.Row="7"
                Grid.Column="1"
                IsToggled="True"
                Toggled="HandleSettingsChange" />

        <Label Grid.Row="8"
               Grid.Column="0"
               Grid.ColumnSpan="2"
               TextColor="Red">
            Click to change the viewshed location.
        </Label>
        <esriUI:SceneView x:Name="MySceneView"
                          Grid.Row="9"
                          Grid.Column="0"
                          Grid.ColumnSpan="2" />
    </Grid>
</ContentPage>