public void Test_Bar_ErrorLineWidth()
{
var plt = new ScottPlot.Plot();
// start with default settings
double[] ys = new double[] { 1, 3, 2, 4 };
var bar = new BarPlot(null, ys, ys, null)
{
};
plt.Add(bar);
var bmp1 = TestTools.GetLowQualityBitmap(plt);
// change the plottable
bar.ErrorLineWidth += 1;
var bmp2 = TestTools.GetLowQualityBitmap(plt);
// 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_Text_Alignment()
{
var plt = new ScottPlot.Plot(400, 300);
// start with default settings
var txt = new ScottPlot.Plottable.Text()
{
Label = "hello"
};
plt.Add(txt);
var bmp1 = TestTools.GetLowQualityBitmap(plt);
string hash1 = ScottPlot.Tools.BitmapHash(bmp1);
// change the plottable
txt.Alignment = Alignment.MiddleCenter;
var bmp2 = TestTools.GetLowQualityBitmap(plt);
string hash2 = ScottPlot.Tools.BitmapHash(bmp2);
// measure what changed
//TestTools.SaveFig(bmp1, "1");
//TestTools.SaveFig(bmp2, "2");
Console.WriteLine($"Before: {hash1}");
Console.WriteLine($"After: {hash2}");
Assert.AreNotEqual(hash1, hash2);
}
public void Test_Text_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(400, 300);
// start with default settings
var txt = new ScottPlot.Plottable.Text()
{
Label = "hello", FontSize = 12
};
plt.Add(txt);
var bmp1 = TestTools.GetLowQualityBitmap(plt);
// change the plottable
txt.FontBold = true;
var bmp2 = TestTools.GetLowQualityBitmap(plt);
// 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_Text_FontSize()
{
var plt = new ScottPlot.Plot(400, 300);
// start with default settings
var txt = new ScottPlot.Plottable.Text()
{
Label = "hello", FontSize = 12
};
plt.Add(txt);
var bmp1 = TestTools.GetLowQualityBitmap(plt);
// change the plottable
txt.FontSize = 36;
var bmp2 = TestTools.GetLowQualityBitmap(plt);
// 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_Text_FontColor()
{
var plt = new ScottPlot.Plot(400, 300);
// start with default settings
var txt = new ScottPlot.Plottable.Text()
{
Label = "hello", Color = System.Drawing.Color.Gray
};
plt.Add(txt);
var bmp1 = TestTools.GetLowQualityBitmap(plt);
// change the plottable
txt.Color = System.Drawing.Color.Blue;
var bmp2 = TestTools.GetLowQualityBitmap(plt);
// 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(before.IsGray());
Assert.That(after.IsNotGray());
Assert.That(after.IsMoreBlueThan(before));
}
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);
}
/// <summary>
/// Return a new Plot with all the same Plottables (and some of the styles) of this one.
/// This is called when you right-click a plot in a control and hit "open in new window".
/// </summary>
public Plot Copy()
{
Settings oldSettings = settings;
Plot oldPlot = this;
Plot newPlot = new Plot(oldSettings.Width, oldSettings.Height);
foreach (IPlottable oldPlottable in oldPlot.GetPlottables())
{
newPlot.Add(oldPlottable);
}
newPlot.AxisAuto();
newPlot.XLabel(oldSettings.XAxis.Label());
newPlot.YLabel(oldSettings.YAxis.Label());
newPlot.Title(oldSettings.XAxis2.Label());
return(newPlot);
}
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_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_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));
}
public void Test_AxisLine_ChangesPosition()
{
var plt = new ScottPlot.Plot();
plt.AntiAlias(false, false, false);
// start with default settings
var axLine = new PlottableHLine()
{
position = 1.23
};
plt.Add(axLine);
var bmp1 = new System.Drawing.Bitmap(plt.GetBitmap(renderFirst: true));
// change the plottable
axLine.position += 1;
var bmp2 = new System.Drawing.Bitmap(plt.GetBitmap(renderFirst: true));
// measure what changed
//TestTools.SaveFig(bmp1, "1");
//TestTools.SaveFig(bmp2, "2");
Assert.AreNotEqual(ScottPlot.Tools.BitmapHash(bmp1), ScottPlot.Tools.BitmapHash(bmp2));
}
public void Test_PlottablePopulations_MultiSeries()
{
// This example will display age, grouped by location, and by year.
// This example has 3 series (years), each of which has 5 population objects (locations).
// for this example we will simulate countries by creating random data
Random rand = new Random(0);
// start by collecting series data as Population[] arrays
var ages1957 = new Population[]
{
new Population(rand, 54, 42, 4), // africa
new Population(rand, 35, 56, 6), // americas
new Population(rand, 48, 47, 5), // asia
new Population(rand, 44, 66, 2), // europe
new Population(rand, 14, 70, 1), // oceania
};
var ages1987 = new Population[]
{
new Population(rand, 54, 52, 8), // africa
new Population(rand, 35, 70, 3), // americas
new Population(rand, 48, 66, 3), // asia
new Population(rand, 44, 75, 2), // europe
new Population(rand, 14, 75, 1), // oceania
};
var ages2007 = new Population[]
{
new Population(rand, 54, 53, 5), // africa
new Population(rand, 35, 72, 3), // americas
new Population(rand, 48, 72, 4), // asia
new Population(rand, 44, 78, 2), // europe
new Population(rand, 14, 81, 1), // oceania
};
// now create a PopulationSeries object for each series
string[] groupLabels = new string[] { "Africa", "Americas", "Asia", "Europe", "Oceania" };
var series1957 = new PopulationSeries(ages1957, "1957", color: System.Drawing.Color.Red);
var series1987 = new PopulationSeries(ages1987, "1987", color: System.Drawing.Color.Green);
var series2007 = new PopulationSeries(ages2007, "2007", color: System.Drawing.Color.Blue);
// now collect all the series into a MultiSeries
var multiSeries = new PopulationSeries[] { series1957, series1987, series2007 };
var plottableMultiSeries = new PopulationMultiSeries(multiSeries);
var customPlottable = new PopulationPlot(plottableMultiSeries);
// plot the multi-series
var plt = new ScottPlot.Plot();
plt.Add(customPlottable);
plt.XTicks(labels: groupLabels);
plt.XAxis.TickLabelStyle(fontSize: 18);
plt.YAxis.TickLabelStyle(fontSize: 18);
// additional plot styling
plt.XAxis2.Label(label: "Life Expectancy", size: 26);
plt.YAxis.Label(label: "Age (years)", size: 18);
plt.Legend(location: Alignment.LowerRight);
plt.Grid(lineStyle: LineStyle.Dot);
plt.XAxis.Grid(false);
TestTools.SaveFig(plt);
}
