/// <summary>
/// A method triggered by the DataCleared event that clears all point information
/// </summary>
/// <param name="sender">The solver that sent the event</param>
/// <param name="args">The event arguments</param>
private void OnDataCleared(object sender, EventArgs args)
{
AddedOrder.Clear();
PlotSeries.Points.Clear();
PlotInfo.InvalidatePlot(true);
}
/// <summary>
/// A method triggered by the CityAdded event that adds the point to the graph
/// </summary>
/// <param name="sender">The solver sending the message</param>
/// <param name="args">The information about the city added</param>
private void OnCityAdded(object sender, CityAddedEventArgs args)
{
// Add to the AddedOrder list to keep track of order
AddedOrder.Add(args.AddedCity);
// Plot the new point on the graph
var point = new DataPoint(args.AddedCity.XPosition, args.AddedCity.YPosition);
PlotSeries.Points.Insert(args.Index, point);
// Update the UI
NotifyOfPropertyChange(nameof(AddedOrder));
PlotInfo.InvalidatePlot(true);
}
/// <summary>
/// A method that reads the cities from the current file
/// </summary>
private void ReadFile()
{
CitySeries.Points.Clear();
Cities.Clear();
// Makes sure the file is valid
if (CurrentFile != null && !CurrentFile.Exists)
{
MessageBox.Show("There is no valid file selected", "No Valid File",
MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
StreamReader reader = new StreamReader(CurrentFile.FullName);
// Skip the first four lines
for (int x = 0; x < 4; x++)
{
reader.ReadLine();
}
// Get the number of destinations
var temp = reader.ReadLine().Split(' ');
int cityCount = int.Parse(temp[1]);
// Skip two more lines
for (int y = 0; y < 2; y++)
{
reader.ReadLine();
}
// Read the data for each city
for (int z = 0; z < cityCount; z++)
{
temp = reader.ReadLine().Split(' ');
var city = new City(int.Parse(temp[0]),
double.Parse(temp[1]),
double.Parse(temp[2]));
// Add the city to the list
Cities.Add(city);
// Add the city to the graph
CitySeries.Points.Add(new ScatterPoint(city.XPosition, city.YPosition));
}
PlotInfo.InvalidatePlot(true);
OnDataCleared(this, new EventArgs());
GSolver.OrderData(Cities);
}
/// <summary>
/// A method triggered by the NewBestTrip event that updates the new best path
/// </summary>
/// <param name="sender">The solver that sent the event</param>
/// <param name="args">The event arguments</param>
private void OnNewBestTrip(object sender, BestFoundEventArgs args)
{
PathSeries.Points.Clear();
foreach (City point in args.NewBest.Stops)
{
PathSeries.Points.Add(new DataPoint(point.XPosition, point.YPosition));
}
ChangeSeries.Points.Add(new DataPoint(args.Generation, 1 / (args.NewBest.Fitness) + 1));
BestDistance = (int)args.NewBest.GetDistance();
NotifyOfPropertyChange(nameof(BestDistance));
PlotInfo.InvalidatePlot(true);
ChangeInfo.InvalidatePlot(true);
}
