private PartitionScore SplitOnAxis(ContinuousAxis axis, List <Episode> episodes, double[] totalWeights)
{
List <EvaluatedEpisode> line =
episodes
.AsParallel()
.Select(episode => EvaluateEpisode(episode, axis))
.OrderBy(x => x.Value)
.ToList();
int lastIndex = 0;
double[] tacticWeightsLeft = new double[NumTactics];
int bestSplitPosition = -1;
double bestEntropy = double.MaxValue;
for (int i = 1; i < line.Count; ++i)
{
bool sameAsPrevious = i > 0 && line[i - 1].Value == line[i].Value;
if (sameAsPrevious)
{
// Cannot create a split part way through the same number
continue;
}
while (lastIndex < i)
{
Episode episode = line[lastIndex++].Episode;
tacticWeightsLeft[(int)episode.Tactic] += episode.Weight;
}
double[] tacticWeightsRight = TacticEntropy.Subtract(totalWeights, tacticWeightsLeft);
double entropy = TacticEntropy.Entropy(tacticWeightsLeft, tacticWeightsRight);
if (entropy < bestEntropy)
{
bestEntropy = entropy;
bestSplitPosition = i;
}
}
if (bestSplitPosition == -1)
{
// Unable to find split - all values must be the same
return(null);
}
return(new PartitionScore {
Partitioner = new ContinuousPartitioner(axis, line[bestSplitPosition].Value),
LeftEpisodes = line.Take(bestSplitPosition).Select(x => x.Episode).ToList(),
RightEpisodes = line.Skip(bestSplitPosition).Select(x => x.Episode).ToList(),
Entropy = bestEntropy,
});
}
private EvaluatedEpisode EvaluateEpisode(Episode episode, ContinuousAxis axis)
{
var key = Tuple.Create(episode, axis);
double value;
if (!_evaluateCache.TryGetValue(key, out value))
{
value = ContinuousAxisEvaluator.Evaluate(axis, episode.World, episode.Hero);
_evaluateCache[key] = value;
}
return(new EvaluatedEpisode {
Episode = episode,
Value = value,
});
}
public WindowCharting3()
{
Background = new SolidColorBrush()
{
Color = ColorHelper.StringToColor("#FF1C1D21")
};
var uri = $"/wallpaper_mikael_gustafsson.png";
InitializeComponent();
Grid grid = new Grid()
{
};
axisX.IsInterregional = false;
ContinuousAxis axisY = new ContinuousAxis(AxisPosition.Left)
{
ValueFormat = "G4", SplitValueFormat = "G4", ShowGridLine = true, AxisPen = new Pen(Brushes.Green, 1), Unit = "万"
};
//axisY.Range = new Range() { Max = new Value<double>(5000000), Min = new Value<double>(40000) };
chart.Offsets = new PaddingOffset(60, 20, 10, 20);
canvasContainer.DrawingCanvas.AddChild(chart);
canvasContainer.DrawingCanvas.DataSource = chart.DataSource;
AxisInteractionCanvas interaction = new AxisInteractionCanvas();
RectInteractionGroup container = new RectInteractionGroup(interaction, 1, 1, canvasContainer);
//container.Background = Brushes.GreenYellow;
chart.AddAsixY(axisY);
chart.AddAsixX(axisX);
chart.AddSeries(lineSeries);
chart.AddSeries(lineSeries2);
grid.Children.Add(container);
canvasContainer.DrawingCanvas.Visuals.Add(CreateDrawingImage());
BlurryUserControl b = new BlurryUserControl()
{
Background = new SolidColorBrush(ColorHelper.StringToColor("#BE323337")).OfStrength(0.2d)
};
b.BlurContainer = canvasContainer;
b.Magnification = 0.25;
b.BlurRadius = 30;
interaction.Tip.Layers.Children.Insert(0, b);
interaction.Tip.TextContainer.Margin = new Thickness(10);
interaction.Tip.FontSize = 11;
interaction.Tip.Border.BorderThickness = new Thickness(1);
interaction.Tip.Border.Padding = new Thickness(0);
interaction.Tip.Border.BorderBrush = Brushes.Black;
interaction.Tip.Foreground = Brushes.White;
//interaction.Tip.Border.BorderBrush = Brushes.White;
//interaction.Tip.Border.BorderThickness = new Thickness(2);
Content = grid;
IsVisibleChanged += WindowCharting3_IsVisibleChanged;
SizeChanged += WindowCharting3_SizeChanged;
//StartDataFeed();
//Timer timer = new Timer(200);
//timer.Elapsed += Timer_Elapsed;
//timer.Start();
}
