/// <summary>
/// Sets up the plot model to be displayed.
/// </summary>
/// <returns>The plot model.</returns>
protected override PlotModel SetupPlot()
{
// Create the plot model
var newPlot = new PlotModel {
Title = "Total Books Read by Language With Time Plot"
};
OxyPlotUtilities.SetupPlotLegend(newPlot, "Total Books Read by Language With Time Plot");
SetupTotalBooksReadKeyVsTimeAxes(newPlot);
// get the languages (in order)
BooksDelta.DeltaTally latestTally = BooksReadProvider.BookDeltas.Last().OverallTally;
List <string> countries = (from item in latestTally.CountryTotals
orderby item.Item2 descending
select item.Item1).ToList();
// create the series for the languages
List <KeyValuePair <string, LineSeries> > lineSeriesSet =
new List <KeyValuePair <string, LineSeries> >();
for (int i = 0; i < countries.Count; i++)
{
LineSeries series;
OxyPlotUtilities.CreateLongLineSeries(out series,
ChartAxisKeys.DateKey, ChartAxisKeys.TotalBooksReadKey, countries[i], i, 128);
lineSeriesSet.Add(
new KeyValuePair <string, LineSeries>(countries[i], series));
}
// loop through the deltas adding points for each of the items to the lines
foreach (var delta in BooksReadProvider.BookDeltas)
{
var date = DateTimeAxis.ToDouble(delta.Date);
foreach (var line in lineSeriesSet)
{
double ttl = 0.0;
foreach (var langTotal in delta.OverallTally.CountryTotals)
{
if (langTotal.Item1 == line.Key)
{
ttl = langTotal.Item2;
}
}
line.Value.Points.Add(new DataPoint(date, ttl));
}
}
IList <LineSeries> lineSeries =
(from item in lineSeriesSet select item.Value).ToList();
var stackSeries = OxyPlotUtilities.StackLineSeries(lineSeries);
// add them to the plot
foreach (var areaSeries in stackSeries)
{
newPlot.Series.Add(areaSeries);
}
// finally update the model with the new plot
return(newPlot);
}
public override void UpdateModel(ref PlotModel newPlot)
{
OxyPlotUtilities.SetupPlotLegend(newPlot, PlotTitle);
SetupTotalSeatsVsTimeAxes(newPlot);
// if no data stop
if (ElectionPredictions?.PollingPredictions == null ||
!ElectionPredictions.PollingPredictions.Any())
{
return;
}
// Get the polls by date.
List <KeyValuePair <DateTime, PartyPrediction> > pollValues =
GetPartyPredictionsByDate();
// Get the party names.
string[] partiesNames = PartyPrediction.PartiesList;
// Add a line and a scatter series per party
List <KeyValuePair <string, LineSeries> > partiesLineSeries =
new List <KeyValuePair <string, LineSeries> >();
SetupPartiesSeries(partiesNames, partiesLineSeries);
// loop through the polls adding points for each of the items to the lines
AddValuesToSeries(pollValues, partiesLineSeries);
// Get the area stack series
IEnumerable <AreaSeries> stackedSeatsSeries =
OxyPlotUtilities.StackLineSeries(partiesLineSeries.Select(x => x.Value).ToList());
// add them to the plot
foreach (AreaSeries series in stackedSeatsSeries)
{
newPlot.Series.Add(series);
}
// add a line annotation
double X = 5D;
double Y = 65D;
LineAnnotation lineAnnotation = new LineAnnotation()
{
StrokeThickness = 3,
Color = OxyColors.Crimson,
Type = LineAnnotationType.Horizontal,
Text = "Majority",
TextColor = OxyColors.Crimson,
X = X,
Y = Y
};
newPlot.Annotations.Add(lineAnnotation);
}
