public override void Render(IRenderContext rc)
{
var numberOfSeries = PlotModel.Series.OfType <TotalSeries>().Count();
var slotWidth = PlotModel.Width / numberOfSeries;
var slotNumber = PlotModel.Series.IndexOf(this);
var startOffset = slotNumber * slotWidth;
var endOffset = (slotNumber + 1) * slotWidth;
var middleHorizontalOffset = startOffset + (slotWidth / 2);
var middleVerticalOffset = PlotModel.Height / 2;
var slotColor = PlotModel.DefaultColors[slotNumber];
var label = GetTotalText();
var totalTextSize = rc.MeasureText(label, PlotModel.DefaultFont, TotalFontSize);
var totalTextPosition = new ScreenPoint(middleHorizontalOffset - (totalTextSize.Width / 2), middleVerticalOffset - (totalTextSize.Height / 2));
var keyShapeSize = new OxySize(PlotModel.DefaultFontSize, PlotModel.DefaultFontSize);
var keyShapePadding = PlotModel.DefaultFontSize;
var keyTextSize = rc.MeasureText(metric.GetTitle(), PlotModel.DefaultFont, PlotModel.DefaultFontSize);
var keyWidth = keyShapeSize.Width + keyTextSize.Width;
var keyHorizontalOffset = middleHorizontalOffset - (keyWidth + keyShapePadding) / 2;
var keyShapePosition = new ScreenPoint(keyHorizontalOffset, middleVerticalOffset + totalTextSize.Height);
var keyTextPosition = new ScreenPoint(keyHorizontalOffset + keyShapeSize.Width + keyShapePadding, middleVerticalOffset + totalTextSize.Height);
rc.DrawText(totalTextPosition, label, PlotModel.TextColor, PlotModel.DefaultFont, TotalFontSize);
rc.DrawRectangle(new OxyRect(keyShapePosition, keyShapeSize), slotColor, new OxyColor());
rc.DrawText(keyTextPosition, metric.GetTitle(), PlotModel.TextColor, PlotModel.DefaultFont, PlotModel.DefaultFontSize);
}
public XYAxisSeries BuildXYSeries(PlotMetric metric, IList <Datapoint> dataPoints, XYAxisSeries series)
{
series.Title = metric.GetTitle();
DateTime startTime = dataPoints.Min(x => x.Timestamp).ToUniversalTime();
DateTime endTime = dataPoints.Max(x => x.Timestamp).ToUniversalTime();
IDictionary <DateTime, double> points = metric.GetIncrements(startTime, endTime).ToDictionary(x => x, y => double.NaN);
foreach (var dataPoint in dataPoints)
{
DateTime timestamp = dataPoint.Timestamp.ToUniversalTime();
if (!points.ContainsKey(timestamp))
{
throw new InvalidOperationException($"Generated time slice array doesn't contain {timestamp}");
}
points[timestamp] = dataPoint.StatisticTypeValue(metric.StatisticType);
}
series.ItemsSource = points.Select(x => DateTimeAxis.CreateDataPoint(x.Key, x.Value));
return(series);
}