ScottPlot.NET
BarSeries plots allow customization of each bar individually.
  • This page contains recipes for the Bar Series category.
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  • Generated by ScottPlot 4.1.59 on 11/6/2022

BarSeries Quickstart

A BarSeries plot allows each Bar to be created and customized individually.

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

// Create a collection of Bar objects
Random rand = new(0);
List<ScottPlot.Plottable.Bar> bars = new();
for (int i = 0; i < 10; i++)
{
    int value = rand.Next(25, 100);
    ScottPlot.Plottable.Bar bar = new()
    {
        // Each bar can be extensively customized
        Value = value,
        Position = i,
        FillColor = ScottPlot.Palette.Category10.GetColor(i),
        Label = value.ToString(),
        LineWidth = 2,
    };
    bars.Add(bar);
};

// Add the BarSeries to the plot
plt.AddBarSeries(bars);
plt.SetAxisLimitsY(0, 120);

plt.SaveFig("barseries_quickstart.png");

BarSeries Horizontal

Horizontal orientation can be achieved by customizing the IsVertical property of each Bar.

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

Random rand = new(0);
List<ScottPlot.Plottable.Bar> bars = new();
for (int i = 0; i < 10; i++)
{
    int value = rand.Next(25, 100);
    ScottPlot.Plottable.Bar bar = new()
    {
        Value = value,
        Position = i,
        FillColor = ScottPlot.Palette.Category10.GetColor(i),
        Label = value.ToString(),
        IsVertical = false, // ENABLE HORIZONTAL ORIENTATION
    };
    bars.Add(bar);
};

plt.AddBarSeries(bars);
plt.SetAxisLimitsX(0, 120);

plt.SaveFig("barseries_horizontal.png");

BarSeries with Error Bars

Combine a BarSeries plot with an ErrorBar plot to achieve this effect.

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

// Create and add Bar objects to the plot
Random rand = new(0);
List<ScottPlot.Plottable.Bar> bars = new();
for (int i = 0; i < 10; i++)
{
    int value = rand.Next(25, 100);
    ScottPlot.Plottable.Bar bar = new()
    {
        Value = value,
        Position = i,
        FillColor = ScottPlot.Palette.Category10.GetColor(i),
        LineWidth = 2,
    };
    bars.Add(bar);
};
plt.AddBarSeries(bars);

// Add error bars on top of the BarSeries plot
double[] xs = bars.Select(x => x.Position).ToArray();
double[] xErrs = bars.Select(x => (double)0).ToArray();
double[] ys = bars.Select(x => x.Value).ToArray();
double[] yErrs = bars.Select(x => (double)rand.Next(2, 20)).ToArray();
var err = plt.AddErrorBars(xs, ys, xErrs, yErrs);
err.LineWidth = 2;
err.CapSize = 5;
err.LineColor = Color.Black;

plt.SetAxisLimitsY(0, 120);

plt.SaveFig("barseries_error.png");

Stacked Bar Plot

By customizing each Bar of a BarSeries we can achieve a stacked bar plot. Text objects can be added to the plot to serve as labels.

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

// This is the source data
double[] values = { 10, 23, 13, 7, 9 };
string[] labels = { "North", "East", "South", "West", "Endogenous" };

// Add a BarSeries to the plot
BarSeries barSeries = plt.AddBarSeries();

// Manually add each Bar to the BarSeries
double lastBarTop = 0;
IPalette palette = new ScottPlot.Palettes.Tsitsulin();
for (int i = 0; i < values.Length; i++)
{
    // Determine how high the bar should be
    double barTop = lastBarTop + values[i];
    double barBottom = lastBarTop;
    lastBarTop += values[i];

    // Add a bar to the existing BarSeries
    Bar bar = new()
    {
        Value = barTop,
        ValueBase = barBottom,
        FillColor = palette.GetColor(i),
        LineColor = Color.Black,
        LineWidth = 1,
    };
    barSeries.Bars.Add(bar);

    // Add a text object to the plot to label this bar
    double barMiddle = (barBottom + barTop) / 2;
    var txt = plt.AddText(labels[i], .6, barMiddle);
    txt.Font.Alignment = Alignment.MiddleLeft;
    txt.Font.Size = 16;
    txt.Font.Bold = true;
    txt.Color = bar.FillColor; // match text and bar
}

// Set the axis limits for a pretty figure
plt.SetAxisLimits(-5, 5, -5, 70);

plt.SaveFig("barseries_stacked.png");