private void UpdatePlot() { var pm = new PlotModel(this.year.ToString(), "data from gapminder.org") { LegendPosition = LegendPosition.RightBottom }; var ss = new ScatterSeries { MarkerType = MarkerType.Circle, MarkerFill = OxyColors.Transparent, MarkerStroke = OxyColors.Blue, MarkerStrokeThickness = 1 }; var piX = typeof(Statistics).GetProperty("GdpPerCapitaPpp"); var piY = typeof(Statistics).GetProperty("LifeExpectancyAtBirth"); var piSize = typeof(Statistics).GetProperty("Population"); var piColor = typeof(Statistics).GetProperty("GeographicRegion"); foreach (var kvp in Countries) { Country country = kvp.Value; double x = country.FindValue(year, piX); double y = country.FindValue(year, piY); double size = country.FindValue(year, piSize); if (double.IsNaN(x) || double.IsNaN(y)) { continue; } ss.Points.Add(new ScatterPoint(x, y, double.NaN, double.NaN, country.Name)); //double radius = 4; //if (!double.IsNaN(size)) // radius = Math.Sqrt(size)*0.1; //if (radius < 4) radius = 4; //if (radius > 40) radius = 40; //ss.MarkerSizes.Add(radius); // Debug.WriteLine(countryName+": "+stats.Population); } pm.Series.Add(ss); if (SelectedCountry != null) { var ls = new LineSeries(SelectedCountry.Name); ls.LineJoin = OxyPenLineJoin.Bevel; foreach (var p in SelectedCountry.Statistics) { if (double.IsNaN(p.GdpPerCapitaPpp) || double.IsNaN(p.LifeExpectancyAtBirth)) { continue; } ls.Points.Add(new DataPoint(p.GdpPerCapitaPpp, p.LifeExpectancyAtBirth)); } pm.Series.Add(ls); var ss2 = new ScatterSeries(); double x = SelectedCountry.FindValue(year, piX); double y = SelectedCountry.FindValue(year, piY); ss2.Points.Add(new ScatterPoint(x, y, 10)); ss2.MarkerFill = OxyColor.FromAColor(120, OxyColors.Red); ss2.MarkerType = MarkerType.Circle; pm.Series.Add(ss2); } pm.Axes.Add(new LinearAxis(AxisPosition.Left, 19, 87, "Life expectancy (years)")); pm.Axes.Add(new LogarithmicAxis(AxisPosition.Bottom, 200, 90000, "Income per person (GDP/capita, PPP$ inflation-adjusted)")); PlotModel = pm; }