public void Test_AutoAxis_ShrinkWhenNeeded()
{
var plt = new ScottPlot.Plot();
// small area
plt.PlotLine(-5, -5, 5, 5);
plt.AxisAuto();
var limitsA = plt.AxisLimits();
Console.WriteLine($"limits A: {limitsA}");
// expand to large area
plt.Axis(-123, 123, -123, 123);
var limitsB = plt.AxisLimits();
Console.WriteLine($"limits B: {limitsB}");
// shrink back to small area
plt.AxisAuto();
var limitsC = plt.AxisLimits();
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_AutoAxis_ExpandXY()
{
var plt = new ScottPlot.Plot();
// small area
plt.PlotLine(-5, -5, 5, 5);
plt.AxisAuto();
var limitsA = plt.AxisLimits();
// large area
plt.PlotLine(-99, -99, 99, 99);
plt.AxisAuto();
var limitsB = plt.AxisLimits();
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.AxisLimits();
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.AxisLimits().XMin, -5);
plt.PlotPoint(999, 999);
plt.PlotPoint(-999, -999);
plt.AxisAuto();
plt.Render(); // force a render
Assert.Less(plt.AxisLimits().XMin, -800);
plt.Clear();
plt.PlotPoint(0.1, 0.1);
plt.PlotPoint(-0.1, -0.1);
plt.Render(); // force a render
Assert.Greater(plt.AxisLimits().XMin, -5);
}
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.AxisLimits();
Assert.Greater(limits.XSpan, 0);
Assert.Greater(limits.YSpan, 0);
}
