public void Test_AutoAxis_ShrinkWhenNeeded()
{
var plt = new ScottPlot.Plot();
// small area
plt.PlotLine(-5, -5, 5, 5);
plt.AxisAuto();
var limitsA = plt.GetAxisLimits();
Console.WriteLine($"limits A: {limitsA}");
// expand to large area
plt.SetAxisLimits(-123, 123, -123, 123);
var limitsB = plt.GetAxisLimits();
Console.WriteLine($"limits B: {limitsB}");
// shrink back to small area
plt.AxisAuto();
var limitsC = plt.GetAxisLimits();
Console.WriteLine($"limits C: {limitsC}");
Assert.That(limitsB.XMin < limitsA.XMin);
Assert.That(limitsB.XMax > limitsA.XMax);
Assert.That(limitsB.YMin < limitsA.YMin);
Assert.That(limitsB.YMax > limitsA.YMax);
Assert.That(limitsB.XMin < limitsC.XMin);
Assert.That(limitsB.XMax > limitsC.XMax);
Assert.That(limitsB.YMin < limitsC.YMin);
Assert.That(limitsB.YMax > limitsC.YMax);
}
public void Test_Scatter_Offset()
{
Random rand = new(0);
double[] xs = DataGen.Random(rand, 20);
double[] ys = DataGen.Random(rand, 20);
var plt = new ScottPlot.Plot(400, 300);
var scatter = plt.AddScatter(xs, ys);
scatter.XError = DataGen.Random(rand, 20, .1);
scatter.YError = DataGen.Random(rand, 20, .1);
plt.AxisAuto();
var limits1 = plt.GetAxisLimits();
//TestTools.SaveFig(plt, "beforeOffset");
Assert.Less(limits1.XMax, 10);
Assert.Less(limits1.YMax, 20);
scatter.OffsetX = 10;
scatter.OffsetY = 20;
plt.AxisAuto();
var limits2 = plt.GetAxisLimits();
//TestTools.SaveFig(plt, "afterOffset");
Assert.Greater(limits2.XMax, 10);
Assert.Greater(limits2.YMax, 20);
}
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_AutoAxis_CandlestickSinglePoint()
{
var plt = new ScottPlot.Plot();
plt.PlotCandlestick(DataGen.RandomStockPrices(rand: null, pointCount: 1));
var limits = plt.GetAxisLimits();
Assert.Greater(limits.XSpan, 0);
Assert.Greater(limits.YSpan, 0);
}
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);
}
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);
}
/// <summary>
/// Get the axis limits for the given plot and apply them to this plot
/// </summary>
public void MatchAxis(Plot sourcePlot, bool horizontal = true, bool vertical = true)
{
var sourceLimits = sourcePlot.GetAxisLimits();
if (horizontal)
{
SetAxisLimitsX(sourceLimits.XMin, sourceLimits.XMax);
}
if (vertical)
{
SetAxisLimitsY(sourceLimits.YMin, sourceLimits.YMax);
}
}
public void Test_AutoAxis_ScatterVerticalLine()
{
var plt = new ScottPlot.Plot();
plt.PlotScatter(
xs: new double[] { 1, 1 },
ys: new double[] { 1, 2 }
);
plt.AxisAuto();
var limits = plt.GetAxisLimits();
Assert.Greater(limits.XSpan, 0);
Assert.Greater(limits.YSpan, 0);
}
public void Test_AutoAxis_ScatterSinglePoint()
{
var plt = new ScottPlot.Plot();
plt.AddScatter(
xs: new double[] { 1, 2 },
ys: new double[] { 1, 2 }
);
plt.AxisAuto();
var limits = plt.GetAxisLimits();
Assert.Greater(limits.XSpan, 0);
Assert.Greater(limits.YSpan, 0);
}
