public void Test_Scatter_Smooth()
{
double[] xs = { 18.5, 20.6, 22.3, 24.5, 26.6, 15, 15 };
double[] ys = { 1.43, 1.48, 1.6, 1.59, 1.53, 1.52, 1.6 };
var plt = new ScottPlot.Plot(600, 400);
var sp1 = plt.AddScatter(xs, ys, label: "DrawLines()");
sp1.Smooth = false;
var sp2 = plt.AddScatter(xs, ys, label: "DrawCurve()");
sp2.Smooth = true;
plt.Legend();
plt.SetAxisLimits(0, 30, 1.42, 1.62);
TestTools.SaveFig(plt);
}
public void Test_Benchmark_Toggle()
{
var plt = new ScottPlot.Plot(600, 400);
plt.PlotSignal(DataGen.Sin(51));
var meanDefault = TestTools.MeanPixel(plt.GetBitmap());
plt.Benchmark(toggle: true);
var meanBenchOn = TestTools.MeanPixel(plt.GetBitmap());
plt.Benchmark(toggle: true);
var meanBenchOff = TestTools.MeanPixel(plt.GetBitmap());
// appearance of the benchmark will lessen mean pixel intensity
Assert.AreEqual(meanDefault.R, meanBenchOff.R);
Assert.Less(meanBenchOn.R, meanDefault.R);
}
public void Test_ScaleBar_Simple()
{
var plt = new ScottPlot.Plot(400, 300);
plt.PlotSignal(DataGen.Sin(51));
plt.PlotSignal(DataGen.Cos(51, mult: 1.5));
plt.PlotScaleBar(5, .25, "5 ms", "250 pA");
plt.Grid(false);
plt.Frame(false);
plt.XAxis.Ticks(false);
plt.YAxis.Ticks(false);
plt.AxisAuto(0);
plt.Frameless();
TestTools.SaveFig(plt);
}
public void Test_Scatter_ChangeOnlyYErrorData()
{
var plt = new ScottPlot.Plot();
// set errorY but NOT errorX
double[] xs = { 1, 2, 3, 4 };
double[] ys = { 1, 4, 9, 16 };
double[] yErr = { .5, .5, 1, 1 };
var splt = new ScatterPlot(xs, ys, errorY: yErr)
{
};
plt.Add(splt);
var bmp = TestTools.GetLowQualityBitmap(plt);
Console.WriteLine(new MeanPixel(bmp));
Assert.That(bmp != null);
}
public void Test_AxisLine_FarAwayExpandXY()
{
Random rand = new Random(0);
var plt = new ScottPlot.Plot();
var data = DataGen.RandomWalk(rand, 100);
var sig = plt.AddSignal(data);
sig.OffsetX = 100;
sig.OffsetY = 100;
sig.Label = "scatter";
plt.AddVerticalLine(-100, label: "vertical");
plt.AddHorizontalLine(-100, label: "horizontal");
plt.Legend();
TestTools.SaveFig(plt);
}
public void Test_DataBackground_ColorCanBeSet()
{
var plt = new ScottPlot.Plot(600, 400);
plt.PlotSignal(DataGen.Sin(51));
var mean1 = TestTools.MeanPixel(plt.GetBitmap());
plt.Style(dataBg: Color.Blue);
var mean2 = TestTools.MeanPixel(plt.GetBitmap());
//TestTools.SaveFig(plt);
// we made the background white->blue, meaning we preserved blue while reducing red and green
Assert.AreEqual(mean2.A, mean1.A);
Assert.Less(mean2.R, mean1.R);
Assert.Less(mean2.G, mean1.G);
Assert.AreEqual(mean2.B, mean1.B);
}
public void Test_Remove_RemovesSinglePlot()
{
var plt = new ScottPlot.Plot();
Random rand = new Random(0);
var barX = plt.AddPoint(111, 222);
var sigA = plt.AddSignal(DataGen.RandomWalk(rand, 100));
var sigB = plt.AddSignal(DataGen.RandomWalk(rand, 100));
var sigC = plt.AddSignal(DataGen.RandomWalk(rand, 100));
var sigD = plt.AddSignal(DataGen.RandomWalk(rand, 100));
var sigE = plt.AddSignal(DataGen.RandomWalk(rand, 100));
var barY = plt.AddPoint(111, 222);
sigC.Label = "C";
Assert.AreEqual(",,,C,,,", GetLegendLabels(plt));
plt.Remove(sigC);
Assert.AreEqual(",,,,,", GetLegendLabels(plt));
}
public void Test_AutomaticTicks_AdditionalTicksAppear()
{
var plt = new ScottPlot.Plot(400, 300);
plt.AddSignal(ScottPlot.DataGen.Sin(51));
// tick positions are automatic by default
string originalTicks = TestTools.GetXTickString(plt);
// set additional positions
double[] positions = { -100, 15, 25, 35, 1234 };
string[] labels = { "x", "a", "b", "c", "y" };
plt.XAxis.AutomaticTickPositions(positions, labels);
Assert.AreNotEqual(originalTicks, TestTools.GetXTickString(plt));
// reset to automatic ticks
plt.XAxis.AutomaticTickPositions();
Assert.AreEqual(originalTicks, TestTools.GetXTickString(plt));
}
public void GenerateMultipleBoxAndWhiskers(List <List <ResultModel> > allResults, List <int> xValues, string plotTitle, string plotName = "results")
{
var plt = new ScottPlot.Plot(600, 400);
var poulations = new ScottPlot.Statistics.Population[allResults.Count];
var p = 0;
foreach (var results in allResults)
{
var ys = new double[results.Count];
var i = 0;
foreach (var r in results)
{
ys[i] = r.Fitness;
i++;
}
var pop = new ScottPlot.Statistics.Population(ys);
poulations[p] = pop;
p++;
}
var popSeries = new ScottPlot.Statistics.PopulationSeries(poulations);
plt.PlotPopulations(popSeries, "scores");
// improve the style of the plot
plt.Title(plotTitle);
plt.YLabel("Solution energy");
var ticks = new string[xValues.Count];
var j = 0;
foreach (var iterations in xValues)
{
ticks[j] = iterations.ToString();
j++;
}
plt.XTicks(ticks);
plt.Legend();
plt.Grid(lineStyle: LineStyle.Dot, enableVertical: false);
plt.SaveFig($"{plotName}.png");
}
public void Test_Layout()
{
int pointCount = 50;
double[] dataXs = DataGen.Consecutive(pointCount);
double[] dataSin = DataGen.Sin(pointCount);
double[] dataCos = DataGen.Cos(pointCount);
var plt = new ScottPlot.Plot();
plt.PlotScatter(dataXs, dataSin);
plt.PlotScatter(dataXs, dataCos);
plt.Title("Very Complicated Data");
plt.XLabel("Experiment Duration");
plt.YLabel("Productivity");
TestTools.SaveFig(plt);
}
private void DrawGraph()
{
if (radSelectDate.Checked)
{
//SummaryList = SummaryList.Select(e => e.DateTime).Distinct().ToList();
var plt = new ScottPlot.Plot(600, 400);
// generate random data to plot
string[] groupNames = SummaryList.Select(a => a.DateTime.ToString("HH:mm")).ToArray();
int groupCount = groupNames.Length;
var ys1 = SummaryList.Where(a => a.DateTime.Year == datePickerSelectDate.Value.Year &&
a.DateTime.Month == datePickerSelectDate.Value.Month &&
a.DateTime.Day == datePickerSelectDate.Value.Day)
.Select(a => decimal.ToDouble(a.CarwashTotalCost));
var ys2 = SummaryList.Where(a => a.DateTime.Year == datePickerSelectDate.Value.Year &&
a.DateTime.Month == datePickerSelectDate.Value.Month &&
a.DateTime.Day == datePickerSelectDate.Value.Day)
.Select(a => decimal.ToDouble(a.BackToZeroTotalCost));
var ys3 = SummaryList.Where(a => a.DateTime.Year == datePickerSelectDate.Value.Year &&
a.DateTime.Month == datePickerSelectDate.Value.Month &&
a.DateTime.Day == datePickerSelectDate.Value.Day)
.Select(a => decimal.ToDouble(a.DetailingTotalCost));
var ys4 = SummaryList.Where(a => a.DateTime.Year == datePickerSelectDate.Value.Year &&
a.DateTime.Month == datePickerSelectDate.Value.Month &&
a.DateTime.Day == datePickerSelectDate.Value.Day)
.Select(a => decimal.ToDouble(a.PaintjobTotalCost));
double[] values = { ys1.FirstOrDefault(), ys2.FirstOrDefault(), ys3.FirstOrDefault(), ys4.FirstOrDefault() };
string[] seriesNames = { ServiceTypeConstants.Carwash, ServiceTypeConstants.BackToZero, ServiceTypeConstants.Detailing, ServiceTypeConstants.PaintJob };
formsPlot1.plt.PlotPie(values, seriesNames, showPercentages: true, showValues: true, showLabels: true, label: "Total Cost Pie Graph");
formsPlot1.plt.Legend();
formsPlot1.Render();
}
}
private string MakeGraph(string[] labels, double[] values)
{
double[] xs = DataGen.Consecutive(labels.Count());
var plt = new ScottPlot.Plot(1920, 1080);
plt.PlotBar(xs, values);
// customize the plot to make it look nicer
plt.Grid(enableVertical: false, lineStyle: LineStyle.Dot);
plt.XTicks(xs, labels);
plt.Ticks(fontSize: 25, xTickRotation: 45);
plt.Layout(yScaleWidth: 80, titleHeight: 50, xLabelHeight: 200, y2LabelWidth: 20);
string path = "graph.png";
plt.SaveFig(path);
return path;
}
public void Test_ManualTicks_CanBeEnabledAndDisabled()
{
var plt = new ScottPlot.Plot(400, 300);
plt.AddSignal(ScottPlot.DataGen.Sin(51));
// tick positions are automatic by default
string originalTicks = TestTools.GetXTickString(plt);
// set manual positions
double[] manualXs = { -100, 15, 25, 35, 1234 };
string[] manyalLabels = { "x", "a", "b", "c", "y" };
plt.XAxis.ManualTickPositions(manualXs, manyalLabels);
Assert.AreNotEqual(originalTicks, TestTools.GetXTickString(plt));
// reset to automatic ticks
plt.XAxis.AutomaticTickPositions();
Assert.AreEqual(originalTicks, TestTools.GetXTickString(plt));
}
public void Test_AutoAxis_ExpandXY()
{
var plt = new ScottPlot.Plot();
// small area
plt.PlotLine(-5, -5, 5, 5);
plt.AxisAuto();
var limitsA = plt.GetAxisLimits();
// large area
plt.PlotLine(-99, -99, 99, 99);
plt.AxisAuto();
var limitsB = plt.GetAxisLimits();
Assert.That(limitsB.XMin < limitsA.XMin);
Assert.That(limitsB.XMax > limitsA.XMax);
Assert.That(limitsB.YMin < limitsA.YMin);
Assert.That(limitsB.YMax > limitsA.YMax);
}
public void Test_tickFormat_timecode()
{
var plt = new ScottPlot.Plot(800, 300);
// simulate 10 seconds of audio data
int pointsPerSecond = 44100;
Random rand = new Random(0);
double[] ys = DataGen.RandomWalk(rand, pointsPerSecond * 10);
// for DateTime compatibility, sample rate must be points/day
double pointsPerDay = 24.0 * 60 * 60 * pointsPerSecond;
plt.PlotSignal(ys, sampleRate: pointsPerDay);
plt.Ticks(dateTimeX: true, dateTimeFormatStringX: "HH:mm:ss:fff");
TestTools.SaveFig(plt);
}
public void Test_DefinedSpacing_DateTimeAxis()
{
int pointCount = 20;
// create a series of dates
double[] dates = new double[pointCount];
var firstDay = new DateTime(2020, 1, 22);
for (int i = 0; i < pointCount; i++)
{
dates[i] = firstDay.AddDays(i).ToOADate();
}
// simulate data for each date
double[] values = new double[pointCount];
Random rand = new Random(0);
for (int i = 1; i < pointCount; i++)
{
values[i] = values[i - 1] + rand.NextDouble();
}
var pltDefault = new ScottPlot.Plot();
pltDefault.Title("Default xSpacing");
pltDefault.AddScatter(dates, values);
pltDefault.XAxis.DateTimeFormat(true);
var pltTest = new ScottPlot.Plot();
pltTest.Title("xSpacing = 1 day");
pltTest.AddScatter(dates, values);
pltTest.XAxis.DateTimeFormat(true);
pltTest.XAxis.TickLabelStyle(rotation: 45);
pltTest.Layout(bottom: 60); // need extra height to accomodate rotated labels
// force 1 tick per day on a DateTime axis
pltTest.XAxis.ManualTickSpacing(1, ScottPlot.Ticks.DateTimeUnit.Day);
//TestTools.SaveFig(pltDefault);
//TestTools.SaveFig(pltTest);
}
public void Test_SMA_DoubleArray()
{
Random rand = new Random(0);
double[] xs = DataGen.Consecutive(150);
double[] prices = DataGen.RandomWalk(rand, xs.Length, offset: 50);
double[] sma20 = ScottPlot.Statistics.Finance.SMA(prices, 20);
double[] sma50 = ScottPlot.Statistics.Finance.SMA(prices, 50);
var plt = new ScottPlot.Plot(600, 400);
plt.PlotScatter(xs, prices, lineWidth: 0, label: "Price");
plt.PlotScatter(xs, sma20, label: "20 day SMA", markerSize: 0, lineWidth: 2);
plt.PlotScatter(xs, sma50, label: "50 day SMA", markerSize: 0, lineWidth: 2);
plt.YLabel("Price");
plt.XLabel("Days");
plt.Legend();
TestTools.SaveFig(plt);
}
public void Test_ScaleBar_FontBold()
{
// bold fonts are supported on all operating systems so only test on windows
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows) == false)
{
return;
}
var plt = new ScottPlot.Plot();
plt.AntiAlias(false, false, false);
// create plot with generic scalebar settings
plt.PlotSignal(DataGen.Sin(51));
plt.PlotSignal(DataGen.Cos(51));
var sb = new PlottableScaleBar()
{
Width = 5,
Height = .25,
VerticalLabel = "5 V",
HorizontalLabel = "250 ms"
};
plt.Add(sb);
var bmp1 = new System.Drawing.Bitmap(plt.GetBitmap(renderFirst: true));
// customize the scalebar
sb.FontBold = true;
var bmp2 = new System.Drawing.Bitmap(plt.GetBitmap(renderFirst: true));
// measure what changed
//TestTools.SaveFig(bmp1, "1");
//TestTools.SaveFig(bmp2, "2");
var before = new MeanPixel(bmp1);
var after = new MeanPixel(bmp2);
Console.WriteLine($"Before: {before}");
Console.WriteLine($"After: {after}");
Assert.That(after.IsDarkerThan(before));
}
public void Test_Layout_LabelsWithLineBreaks()
{
int pointCount = 50;
double[] dataXs = DataGen.Consecutive(pointCount);
double[] dataSin = DataGen.Sin(pointCount);
double[] dataCos = DataGen.Cos(pointCount);
var plt = new ScottPlot.Plot();
plt.PlotScatter(dataXs, dataSin);
plt.PlotScatter(dataXs, dataCos);
string labelWithLineBreak = "Line One\nLine Two";
plt.Title(labelWithLineBreak, fontSize: 30);
plt.XLabel(labelWithLineBreak);
plt.YLabel(labelWithLineBreak);
TestTools.SaveFig(plt);
}
public void Test_Legend_ReverseOrder()
{
var plt1 = new ScottPlot.Plot();
plt1.PlotSignal(DataGen.Sin(100), label: "sin");
plt1.PlotSignal(DataGen.Cos(100), label: "cos");
plt1.Legend();
string hash1 = ScottPlot.Tools.BitmapHash(plt1.GetBitmap());
var plt2 = new ScottPlot.Plot();
plt2.PlotSignal(DataGen.Sin(100), label: "sin");
plt2.PlotSignal(DataGen.Cos(100), label: "cos");
plt2.Legend(reverseOrder: true);
string hash2 = ScottPlot.Tools.BitmapHash(plt2.GetBitmap());
TestTools.SaveFig(plt1, "standard");
TestTools.SaveFig(plt2, "reversed");
Assert.AreNotEqual(hash1, hash2);
}
public void Test_Scatter_ZoomWorksWithOnePoint()
{
// Tests a bug where plots with a single point (axis span 0) can't zoom
// https://github.com/ScottPlot/ScottPlot/issues/768
double[] dataX = { 42 };
double[] dataY = { 303 };
// create a scatter plot with a single point
var plt = new ScottPlot.Plot(400, 300);
plt.AddScatter(dataX, dataY);
var bmp1 = TestTools.GetLowQualityBitmap(plt);
// zoom in
plt.AxisZoom(2, 2);
var bmp2 = TestTools.GetLowQualityBitmap(plt);
// ensure the bitmap changed
Assert.AreNotEqual(ScottPlot.Tools.BitmapHash(bmp1), ScottPlot.Tools.BitmapHash(bmp2));
}
public void Test_PolygonVsSignal_AlignmentWithLargeValues()
{
double[] xs = { 1e6 + 75, 1e6 + 250, 1e6 + 280, 1e6 + 100 };
double[] ys = { 1e6 - 100, 1e6 - 75, 1e6 - 200, 1e6 - 220 };
var plt = new ScottPlot.Plot(320, 240);
plt.PlotPolygon(xs, ys, fillColor: Color.LightGreen);
plt.PlotSignal(
ys: new double[] { ys[0], ys[1] },
sampleRate: 1.0 / (xs[1] - xs[0]),
xOffset: xs[0],
color: Color.Blue,
markerSize: 0
);
plt.Grid(false);
plt.Frame(false);
plt.Ticks(false, false);
plt.Title("Large Value Signal");
TestTools.SaveFig(plt);
}
public static string SaveFig(ScottPlot.Plot plot)
{
var stackTrace = new System.Diagnostics.StackTrace();
string callingMethodName = stackTrace.GetFrame(1) !.GetMethod() !.Name;
string filename = callingMethodName + ".png";
string folder = Path.GetFullPath("RenderTest");
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
string path = Path.Combine(folder, filename);
var sw = System.Diagnostics.Stopwatch.StartNew();
plot.SaveFig(path);
sw.Stop();
Console.WriteLine($"Saved in {sw.Elapsed.TotalMilliseconds:N3} ms");
Console.WriteLine(path);
return(path);
}
public void Test_AutoAxis_WorksAfterClear()
{
var plt = new ScottPlot.Plot();
plt.PlotPoint(0.1, 0.1);
plt.PlotPoint(-0.1, -0.1);
plt.AxisAuto();
plt.Render(); // force a render
Assert.Greater(plt.GetAxisLimits().XMin, -5);
plt.PlotPoint(999, 999);
plt.PlotPoint(-999, -999);
plt.AxisAuto();
plt.Render(); // force a render
Assert.Less(plt.GetAxisLimits().XMin, -800);
plt.Clear();
plt.PlotPoint(0.1, 0.1);
plt.PlotPoint(-0.1, -0.1);
plt.Render(); // force a render
Assert.Greater(plt.GetAxisLimits().XMin, -5);
}
static public void RunSudoku(double[] difficulty, double[] dataB, double[] dataBF, string heuristicB = "", string heuristicBF = "", string type = "")
{
var plt = new ScottPlot.Plot(1280, 720);
int pointCount = dataB.Length;
plt.PlotBar(difficulty, dataB, label: "Backtrack w/ " + heuristicB, barWidth: .3, xOffset: -0.2);
plt.PlotBar(difficulty, dataBF, label: "Backtrack with forward w/ " + heuristicBF, barWidth: .3, xOffset: 0.2);
plt.Title("Average " + type + " over sudoku difficulty");
plt.Axis(y1: 0);
if (type == "time")
{
plt.YLabel("Execution time [ms]");
}
else
{
plt.YLabel("Steps");
}
plt.XLabel("Difficulty");
plt.Legend(location: legendLocation.upperRight);
plt.Ticks(useExponentialNotation: false, useMultiplierNotation: false);
plt.SaveFig(heuristicB + heuristicBF + type + "BvsBF" + ".png");
}
public void Test_AxisLine_ChangesPosition()
{
var plt = new ScottPlot.Plot();
// start with default settings
var axLine = new HLine()
{
position = 1.23
};
plt.Add(axLine);
var bmp1 = TestTools.GetLowQualityBitmap(plt);
// change the plottable
axLine.position += 1;
var bmp2 = TestTools.GetLowQualityBitmap(plt);
// measure what changed
//TestTools.SaveFig(bmp1, "1");
//TestTools.SaveFig(bmp2, "2");
Assert.AreNotEqual(ScottPlot.Tools.BitmapHash(bmp1), ScottPlot.Tools.BitmapHash(bmp2));
}
public void Test_MultiAxis_AutoAxis()
{
double[] xs = { 1, 2, 3 };
double[] ys = { 4, 5, 6 };
var plt = new ScottPlot.Plot(400, 300);
var sp = plt.AddScatter(xs, ys);
sp.YAxisIndex = 1;
sp.XAxisIndex = 1;
plt.Render();
var limitsA = plt.GetAxisLimits(1, 1);
xs[0] = 999;
ys[0] = 999;
plt.AxisAuto(0.05, .01, 1, 1);
plt.Render();
var limitsB = plt.GetAxisLimits(1, 1);
Assert.Greater(limitsB.XMax, limitsA.XMax);
Assert.Greater(limitsB.YMax, limitsA.YMax);
}
public void Test_Finance_AutoWidth()
{
var plt = new ScottPlot.Plot();
plt.AntiAlias(false, false, false);
// start with default settings
var op = new PlottableOHLC()
{
Candle = true,
ohlcs = new OHLC[]
{
// open, high, low, close, time, timeSpan
new OHLC(273, 275, 264, 265, 1, 1),
new OHLC(267, 276, 265, 274, 4, 1),
new OHLC(277, 280, 275, 278, 7, 1),
new OHLC(267, 276, 265, 274, 10, 1),
}
};
plt.Add(op);
var bmp1 = new System.Drawing.Bitmap(plt.GetBitmap(renderFirst: true));
// change the plottable
op.AutoWidth = true;
var bmp2 = new System.Drawing.Bitmap(plt.GetBitmap(renderFirst: true));
// measure what changed
//TestTools.SaveFig(bmp1, "1");
//TestTools.SaveFig(bmp2, "2");
var before = new MeanPixel(bmp1);
var after = new MeanPixel(bmp2);
Console.WriteLine($"Before: {before}");
Console.WriteLine($"After: {after}");
Assert.That(after.IsDarkerThan(before));
}
private ScottPlot.Plot TestColormap(Palette cset, int lineWidth, bool dark = false)
{
var plt = new ScottPlot.Plot(600, 400);
for (int i = 0; i < cset.Count(); i++)
{
double[] ys = DataGen.Sin(51, phase: -i / Math.PI / cset.Count());
var sig = plt.AddSignal(ys, color: cset.GetColor(i));
sig.MarkerSize = 0;
sig.LineWidth = lineWidth;
}
if (dark)
{
plt.Style(Style.Gray1);
plt.Style(darkColor, darkColor);
}
plt.Title($"Colorset '{cset.Name}' has {cset.Count()} colors");
plt.AxisAuto(0);
return(plt);
}
public void Test_Legend_Bitmap()
{
var plt = new ScottPlot.Plot(600, 400);
plt.PlotScatter(DataGen.Consecutive(51), DataGen.Sin(51), label: "sin");
plt.PlotScatter(DataGen.Consecutive(51), DataGen.Cos(51), label: "cos");
// the legend Bitmap should have size
var bmpLegend1 = plt.GetLegendBitmap();
Assert.IsNotNull(bmpLegend1);
Assert.Greater(bmpLegend1.Width, 0);
Assert.Greater(bmpLegend1.Height, 0);
// add a new line to the plot
plt.PlotScatter(DataGen.Consecutive(51), DataGen.Consecutive(51), label: "test123");
// the legend Bitmap should be bigger now
var bmpLegend2 = plt.GetLegendBitmap();
Assert.Greater(bmpLegend2.Height, bmpLegend1.Height);
Assert.Greater(bmpLegend2.Width, bmpLegend1.Width);
}