Annular Sector

An annular sector is the 2D shape between two circles (like a donut) and may be sliced to contain only the area between two angles relative to the center point.

Shapes.cs

ScottPlot.Plot myPlot = new();

Coordinates center = new(0, 0);
double outerRadius = 2.0;
double innerRadius = 1.0;
Angle start = Angle.FromDegrees(45);
Angle sweep = Angle.FromDegrees(135);

var cs = myPlot.Add.AnnularSector(center, outerRadius, innerRadius, start, sweep);
cs.FillColor = Colors.Blue.WithAlpha(.2);
cs.LineColor = Colors.Black;
cs.LineWidth = 5;

myPlot.Axes.SquareUnits(); // use square units so circles are not stretched

myPlot.SavePng("demo.png", 400, 300);

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This recipe is one of many in the Shapes category