public static PlotModel RandomScatter(int n, int binsize)
{
var model = new PlotModel(string.Format("ScatterSeries (n={0})", n), "BinSize = " + binsize);
var s1 = new ScatterSeries("Series 1")
{
MarkerType = MarkerType.Diamond,
MarkerStrokeThickness = 0,
BinSize = binsize
};
var random = new Random();
for (int i = 0; i < n; i++)
{
s1.Points.Add(new ScatterPoint(random.NextDouble(), random.NextDouble()));
}
model.Series.Add(s1);
return model;
}
public static PlotModel CreateRandomScatterSeriesWithColorAxisPlotModel(int n, OxyPalette palette, MarkerType markerType = MarkerType.Square, AxisPosition colorAxisPosition = AxisPosition.Right, OxyColor highColor = null, OxyColor lowColor = null)
{
var model = new PlotModel(string.Format("ScatterSeries (n={0})", n)) { Background = OxyColors.LightGray };
model.Axes.Add(new ColorAxis { Position = colorAxisPosition, Palette = palette, Minimum = -1, Maximum = 1, HighColor = highColor, LowColor = lowColor });
var s1 = new ScatterSeries
{
MarkerType = markerType,
MarkerSize = 6,
};
var random = new Random();
for (int i = 0; i < n; i++)
{
double x = random.NextDouble() * 2.2 - 1.1;
s1.Points.Add(new ScatterPoint(x, random.NextDouble()) { Value = x });
}
model.Series.Add(s1);
return model;
}
public static PlotModel ScatterSeries5()
{
var model = new PlotModel("ScatterSeries (cross)");
var s1 = new ScatterSeries();
s1.MarkerType = MarkerType.Cross;
s1.MarkerFill = null;
s1.MarkerStroke = OxyColors.Black;
AddPoints(s1.Points, 2000);
model.Series.Add(s1);
return model;
}
public static PlotModel ScatterSeries4()
{
var model = new PlotModel("ScatterSeries (circles with outline)");
var s1 = new ScatterSeries();
s1.MarkerType = MarkerType.Circle;
s1.MarkerStroke = OxyColors.Black;
AddPoints(s1.Points, 2000);
model.Series.Add(s1);
return model;
}
public static PlotModel ScatterSeries3()
{
var model = new PlotModel("ScatterSeries (circles)");
var s1 = new ScatterSeries();
s1.MarkerType = MarkerType.Circle;
AddPoints(s1.Points, 2000);
model.Series.Add(s1);
return model;
}
public static PlotModel ScatterSeries1c()
{
var model = new PlotModel("ScatterSeries (squares without fill color)");
var s1 = new ScatterSeries();
s1.MarkerFill = OxyColors.Transparent;
s1.MarkerStroke = OxyColors.Black;
AddPoints(s1.Points, 2000);
model.Series.Add(s1);
return model;
}
public static PlotModel ScatterSeries1()
{
var model = new PlotModel("ScatterSeries (squares)");
var s1 = new ScatterSeries();
AddPoints(s1.Points, 2000);
model.Series.Add(s1);
return model;
}
private static ScatterSeries CreateRandomScatterSeries(int n, string title, MarkerType markerType)
{
var s1 = new ScatterSeries { Title = title, MarkerType = markerType, MarkerStroke = OxyColors.Black, MarkerStrokeThickness = 1.0 };
for (int i = 0; i < n; i++)
{
double x = Randomizer.NextDouble() * 10;
double y = Randomizer.NextDouble() * 10;
var p = new ScatterPoint(x, y);
s1.Points.Add(p);
}
return s1;
}
public static PlotModel RandomWithFit()
{
const int n = 20;
var model = new PlotModel(string.Format("Random data (n={0})", n)) { LegendPosition = LegendPosition.LeftTop };
var s1 = new ScatterSeries { Title = "Measurements" };
var random = new Random();
double x = 0;
double y = 0;
for (int i = 0; i < n; i++)
{
x += 2 + random.NextDouble() * 10;
y += 1 + random.NextDouble();
var p = new ScatterPoint(x, y);
s1.Points.Add(p);
}
model.Series.Add(s1);
double a, b;
LeastSquaresFit(s1.Points, out a, out b);
model.Annotations.Add(new LineAnnotation { Slope = a, Intercept = b, Text = "Least squares fit" });
return model;
}
