private async void computeShortcutsButton_Click(object sender, System.EventArgs e)
{
var epsilon = (double)errorUpDown.Value;
var inp = new MSSInput
{
Trajectory = input.Trajectory,
Epsilons = new List <double> {
epsilon
}
};
var outp = new MSSOutput(inp);
var builder = new MSCompleteSimple
{
ShortcutSetFactory = (ShortcutSetFactory)shortcutSetFactoryComboBox.SelectedItem
};
var checker = new MSSChinChan.ShortcutChecker(inp, outp);
outp.Logged += str =>
{
this.InvokeIfRequired(() =>
{
shortcutFindingProgressLabel.Text = str;
});
};
await Task.Run(() =>
{
outp.LogLine("Started...");
var shortcutSet = (MSSimpleShortcutSet)builder.FindShortcuts(checker, true);
input.ShortcutSet = shortcutSet.ExtractShortcuts(1);
});
if (input.ShortcutSet is ShortcutIntervalSet)
{
var intervalSet = (ShortcutIntervalSet)input.ShortcutSet;
shortcutFindingProgressLabel.Text = "Shortcuts: " + intervalSet.Count + " Intervals: " + intervalSet.IntervalCount;
}
else if (input.ShortcutSet is ShortcutGraph)
{
shortcutFindingProgressLabel.Text = "Shortcuts: " + input.ShortcutSet.Count;
}
UpdateSourceAndTarget();
}
public override void Compute(MSSInput input, out MSSOutput output)
{
output = new MSSOutput(input);
var trajectory = input.Trajectory;
var errors = new double[trajectory.Count - 2][];
for (var i = 0; i < trajectory.Count - 2; i++)
{
errors[i] = new double[trajectory.Count - i - 1];
var pointI = trajectory[i];
var hull = new EnhancedConvexHull(pointI);
for (var j = i + 1; j < trajectory.Count; j++)
{
var pointJ = trajectory[j];
hull.Insert(pointJ);
if (Math.Abs(j - i) > 1)
{
errors[i][j - i - 1] = hull.GetMinEpsilon(pointJ, true);
}
}
}
for (var i = trajectory.Count - 1; i >= 2; i--)
{
var pointI = trajectory[i];
var hull = new EnhancedConvexHull(pointI);
for (var j = i - 1; j >= 0; j--)
{
var pointJ = trajectory[j];
hull.Insert(pointJ);
if (Math.Abs(j - i) > 1)
{
errors[j][i - j - 1] = Math.Max(errors[j][i - j - 1], hull.GetMinEpsilon(pointJ, false));
}
}
}
var shortcutSet = new MSSimpleShortcutSet(input, ShortcutSetBuilder.ShortcutSetFactory);
for (var level = 1; level <= input.NumLevels; level++)
{
output.LogLine("Dumping level " + level);
var shortcuts = ShortcutSetBuilder.ShortcutSetFactory.Create(input.Trajectory);
for (var i = 0; i < trajectory.Count - 1; i++)
{
shortcuts.PrependShortcut(trajectory[i], trajectory[i + 1]);
}
for (var i = 0; i < trajectory.Count - 2; i++)
{
var pointI = trajectory[i];
for (var j = i + 2; j < trajectory.Count; j++)
{
var pointJ = trajectory[j];
if (errors[i][j - i - 1] <= input.GetEpsilon(level))
{
shortcuts.AppendShortcut(pointI, pointJ);
}
}
}
shortcutSet.Shortcuts[level] = shortcuts;
}
output.Shortcuts = shortcutSet;
}