public async Task Setup()
{
var centre = new Complex(5, 10);
var range = new Complex(10, 20);
var sut = new ComplexPlaneBuilder();
_result = await sut.BuildArrayAsync(51, 101, centre, range);
}
public void ThrowsArgumentException(int width, int height)
{
var centre = new Complex(0, 0);
var range = new Complex(2, 2);
var sut = new ComplexPlaneBuilder();
Assert.ThrowsAsync <ArgumentException>(async() => await sut.BuildArrayAsync(width, height, centre, range), "Dimensions must be > 0.");
}
public async Task Run(string[] args)
{
Console.WriteLine("Greg's Fractal renderer test");
Console.WriteLine("Setting up...");
var timer = new Stopwatch();
timer.Start();
const int width = 1000; // Real Axis
const int height = 1000; // Imaginary Axis
var centre = new Complex(0m, 0m);
var range = new Complex(3m, 3m);
var arrayBuilder = new ComplexPlaneBuilder();
var bitmapConverter = new ByteArrayToBitmapConverter();
var iterator = new Iterator();
var renderer = new JuliaRenderer(arrayBuilder, iterator);
renderer.C = new Complex(0.285m, 0.01m);
await renderer.SetupAsync(width, height, centre, range);
Console.WriteLine("Iterating...");
var iterationTimer = new Stopwatch();
for (var i = 0; i < 200; i++)
{
iterationTimer.Start();
await renderer.IterateAsync();
Console.WriteLine($"Iteration {i} complete taking {iterationTimer.Elapsed.TotalSeconds} seconds.");
iterationTimer.Reset();
}
Console.WriteLine("Drawing...");
var palette = new ColourPalette();
palette.AddMarker(Colour.Black(), 0);
palette.AddMarker(Colour.White(), 99.999m);
palette.AddMarker(Colour.Black(), 100);
// Get byte array of 32bpp colour data
var imageBytes = await renderer.Get32BppImageByteArrayAsync(palette);
// Convert byte array to bitmap
var image = await bitmapConverter.ConvertAsync(imageBytes, width, height);
// Encode to png
var imageData = image.Encode(SKEncodedImageFormat.Png, int.MaxValue);
// Save to file system
await using var fs = new FileStream($@"C:\FractalOutput\Julia{DateTime.Now:yyyyMMddHHmmss}.png", FileMode.CreateNew);
imageData.SaveTo(fs);
Console.WriteLine($"Finished, took {timer.Elapsed.TotalSeconds} seconds.");
}
public async Task Setup()
{
var centre = new Complex(0, 0);
var range = new Complex(2, 2);
var sut = new ComplexPlaneBuilder();
_result = await sut.BuildArrayAsync(3, 3, centre, range);
_expected = new Complex[, ]
{
{ new Complex(-1, -1), new Complex(-1, 0), new Complex(-1, 1) },
{ new Complex(0, -1), new Complex(0, 0), new Complex(0, 1) },
{ new Complex(1, -1), new Complex(1, 0), new Complex(1, 1) },
};
}
