private Unit Plot(PlotData plotData)
{
var setTemperature = plotData.SetTemperature;
var currentTemperature = plotData.CurrentTemperature;
var ipAddress = plotData.IPAddress;
var plottingBand = plotData.PlottingBand;
var plottingTimeSpan = plotData.PlottingTimeSpan;
display.WriteSetTemp(setTemperature);
display.WriteCurrentTemp(currentTemperature);
display.WriteIp(ipAddress);
var yMin = setTemperature - plottingBand;
var yMax = setTemperature + plottingBand;
var temperaturesInPlottingRange = temperatureHistory.GetValuesBeforeNow(plottingTimeSpan, out var now);
var bucketSizeInTicks = (long)(plottingTimeSpan.Ticks / display.MaxValues);
var indexedBuckets = temperaturesInPlottingRange.GroupBy(t => (now - t.Time).Ticks / bucketSizeInTicks).ToDictionary(g => g.Key, g => g.Select(v => v.Value).ToArray());
if (indexedBuckets.Any())
{
var maxIndex = indexedBuckets.Keys.Max();
var minIndex = indexedBuckets.Keys.Min();
var values = new double[maxIndex - minIndex + 1];
values[0] = indexedBuckets[minIndex].Average();
var startValueOfInterpolation = values[0];
var indicesToInterpolate = new List <int>();
for (int i = 1; i < values.Length; i++)
{
if (indexedBuckets.TryGetValue(i, out var bucket))
{
var endValueOfInterpolation = values[i] = bucket.Average();
if (indicesToInterpolate.Any())
{
var yDifference = endValueOfInterpolation - startValueOfInterpolation;
var xDifference = indicesToInterpolate.Count + 1;
var gain = yDifference / xDifference;
for (int j = 0; j < indicesToInterpolate.Count; j++)
{
var index = indicesToInterpolate[j];
values[index] = startValueOfInterpolation + (j + 1) * gain;
}
}
startValueOfInterpolation = endValueOfInterpolation;
indicesToInterpolate.Clear();
}
else
{
indicesToInterpolate.Add(i);
}
}
display.DrawDiagram(new DiagramData(yMin, yMax, plottingTimeSpan, values, (int)minIndex));
}
else
{
display.DrawDiagram(new DiagramData(yMin, yMax, plottingTimeSpan, new double[0], 0));
}
display.Draw();
return(Unit.Default);
}
