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Sort ntrip sources by distance

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This commit is contained in:
Morten Nielsen 2020-09-07 20:01:17 -07:00
parent 43fedd2b3f
commit 52b402323a
2 changed files with 40 additions and 1 deletions
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4
src/SampleApp.WinDesktop/NtripView.xaml
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@ -7,6 +7,9 @@
mc:Ignorable="d"
d:DesignHeight="450" d:DesignWidth="800">
<Grid >
<Grid.Resources>
<local:DistanceConverter x:Key="DistanceConverter" />
</Grid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" MinWidth="80" />
<ColumnDefinition />
@ -66,6 +69,7 @@
<TextBlock Text="{Binding Mountpoint, StringFormat='Mount point: {0}'}" />
<TextBlock Text="{Binding Network, StringFormat='Network: {0}'}" />
<TextBlock Text="{Binding SupportsNmea, StringFormat='Supports NMEA: {0}'}" />
<TextBlock Text="{Binding Converter={StaticResource DistanceConverter}}" />
<Button Content="Connect" Click="Connect_Click" />
</StackPanel>
</Grid>

37
src/SampleApp.WinDesktop/NtripView.xaml.cs
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@ -2,6 +2,7 @@
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
@ -41,13 +42,28 @@ namespace SampleApp.WinDesktop
try
{
sources = client.GetSourceTable().OfType<NtripStream>().ToList();
if(sources.Count == 0)
{
MessageBox.Show($"No NTRIP data streams found at {host.Text}:{portNumber}");
return;
}
}
catch(System.Exception ex)
{
MessageBox.Show("Failed to connect: " + ex.Message);
return;
}
sourceList.ItemsSource = sources.OrderBy(s=>s.CountryCode);
if (MainWindow.monitor != null && !double.IsNaN(MainWindow.monitor.Latitude) && !double.IsNaN(MainWindow.monitor.Longitude))
{
var lat = MainWindow.monitor.Latitude;
var lon = MainWindow.monitor.Longitude;
// Order by closest source
sourceList.ItemsSource = sources.OrderBy(s => PointPlotView.Vincenty.GetDistanceVincenty(lat, lon, s.Latitude, s.Longitude));
}
else
{
sourceList.ItemsSource = sources.OrderBy(s => s.CountryCode);
}
}
Stream ntripStream;
private void Connect_Click(object sender, RoutedEventArgs e)
@ -89,4 +105,23 @@ namespace SampleApp.WinDesktop
ntripstatus.Text = $"Connected";
}
}
public class DistanceConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if(value is NtripStream s && MainWindow.monitor?.IsFixValid == true)
{
var lat = MainWindow.monitor.Latitude;
var lon = MainWindow.monitor.Longitude;
var distance = PointPlotView.Vincenty.GetDistanceVincenty(lat, lon, s.Latitude, s.Longitude);
return "Distance: " + (distance / 1000).ToString("0.##") + "km";
}
return "";
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
}