Issue:
If plot contains a function which is entirely outside the rendered area and you try
to use auto scale it will crash.

I believe the issue could be in several places.

Firstly in FunctionPlot:

If no points are inside the render area then the minX and maxX used to report the GetAxisLimits() on the next render will remian:

double max = double.MinValue; 
double min = double.MaxValue;

Then in FractionalAutoScaler.GetAxisLimits() it calls GetDataLimits() which will be polluted but the plots GetAxisLimits()
so that Left == Right however they are either double.MinValue or double.MaxValue in which case adding or subtracting 1 to then won't do anything because 1 is outside the precision range so the HasArea check will fail because Left == Right.

Not sure where the right place to fix things would be.

ScottPlot Version: 5.0.24

Code Sample:

I found the bug clicking middle click in a winforms interactive plot but this code also causes it.

var plot = new Plot();
plot.Add.Function(new FunctionSource(x => x)
{
  RangeX = new CoordinateRange(-1, 1)
});
plot.Axes.SetLimits(-10, -9, -10, -9);
plot.SavePng("offscreen.png", 400, 400);
plot.Axes.AutoScale();
plot.SavePng("crash.png", 400, 400);