Rectangular Contour Plot

ScottPlot.Plot myPlot = new();

Coordinates3d[,] cs = new Coordinates3d[50, 50];
for (int y = 0; y < cs.GetLength(0); y++)
{
    for (int x = 0; x < cs.GetLength(1); x++)
    {
        double z = Math.Sin(x * .1) + Math.Cos(y * .1);
        cs[y, x] = new(x, y, z);
    }
}

var contour = myPlot.Add.ContourLines(cs);
contour.LineColor = Colors.Black.WithAlpha(.5);
contour.LinePattern = LinePattern.Dotted;

myPlot.Axes.TightMargins();
myPlot.HideGrid();

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