var plt = new ScottPlot.Plot(600, 400);

int pointCount = 51;
double[] xs = DataGen.Consecutive(pointCount);

string[] markerShapeNames = Enum.GetNames(typeof(MarkerShape));
for (int i = 0; i < markerShapeNames.Length; i++)
{
    Enum.TryParse(markerShapeNames[i], out MarkerShape ms);
    double[] ys = DataGen.Sin(pointCount, 2, -i);
    var sp = plt.AddSignalXYConst(xs, ys); // <- replace this line
    sp.LineWidth = 2;
    sp.LineColor = Color.FromArgb(50, sp.LineColor);
    sp.MarkerSize = 7;
    sp.MarkerShape = ms;
    sp.Label = ms.ToString();
}

plt.Grid(enable: false);
var legend = plt.Legend();
legend.FontSize = 10;

plt.SaveFig("scatter_markerShape.png");