ScottPlot.NET
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Background Gauges Normalization

Gauge backgrounds are drawn as full circles by default. This behavior can be disabled to draw partial backgrounds for non-circular gauges.

This code sample is specific to ScottPlot 5 (details)
ScottPlot.Plot myPlot = new();

myPlot.Add.Palette = new ScottPlot.Palettes.Nord();
double[] values = { 100, 80, 65, 45, 20 };

var radialGaugePlot = myPlot.Add.RadialGaugePlot(values);
radialGaugePlot.CircularBackground = false;
radialGaugePlot.MaximumAngle = 180;
radialGaugePlot.StartingAngle = 180;

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

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