public static void BicubicWindowOscillatesCorrectly(float x, float expected)
{
var sampler = new BicubicResampler();
float result = sampler.GetValue(x);
Assert.Equal(result, expected);
}
static void Main(string[] args)
{
var commandline =
args.Select((x, i) => new { index = i, option = x })
.Where(x => x.option.StartsWith("-")).Select(x => new
{
option = x.option.Substring(1),
arguments = args.Skip(x.index + 1)
.TakeWhile(m => !m.StartsWith("-")).ToArray()
})
.ToDictionary(x => x.option.ToLower(), x => x.arguments);
if (args.Length == 0 || commandline.ContainsKey("h") || commandline.ContainsKey("help"))
{
Console.WriteLine("Tiler XYZ tile maker v1.0");
Console.WriteLine("Usage:");
Console.WriteLine("Tiler.exe image.jpg");
Console.WriteLine(" or");
Console.WriteLine("Tiler.exe -input image.jpg -output output_folder -size 256 -zoom 6");
return;
}
var sourceFile = commandline.Count == 0 && args.Length > 0 ? args[0] : commandline["input"].First();
int tile_size = commandline.ContainsKey("size") ? int.Parse(commandline["size"].First()) : 256;
var Directory = commandline.ContainsKey("output") ? commandline["output"].First() : new System.IO.FileInfo(sourceFile).Directory.FullName + System.IO.Path.DirectorySeparatorChar + string.Format("{0}-tiles", commandline.ContainsKey("stdin") ? "STDIN" : new System.IO.FileInfo(sourceFile).Name);
System.IO.DirectoryInfo OutputDirectory = System.IO.Directory.CreateDirectory(Directory);
var OriginalSource = commandline.ContainsKey("stdin") ? Image <Rgba32> .Load(Console.OpenStandardInput()) : Image <Rgba32> .Load(sourceFile);
int maxzoom = commandline.ContainsKey("zoom") ? int.Parse(commandline["zoom"].First()) :
((int)Math.Ceiling(Math.Log(Math.Max(OriginalSource.Width, OriginalSource.Height) / (double)tile_size)) + 1); // auto detect max level
var Sampler = new BicubicResampler();
for (int zoom = 0; zoom <= maxzoom; zoom++)
{
int tiles = (int)Math.Pow(2.0, zoom);
int size = tiles * tile_size;
using (var Scaled = new Image <Rgba32>(size, size))
{
Scaled.Mutate(i => i.Clear(Color.Transparent));
{
if (OriginalSource.Width > OriginalSource.Height)
{
int width = Scaled.Width;
int height = width * OriginalSource.Height / OriginalSource.Width;
Scaled.Mutate(x => x.DrawImage(OriginalSource.Clone(x => x.Resize(width, height, Sampler)), new Point(0, (Scaled.Height - height) / 2), new GraphicsOptions()));
}
else
{
int height = Scaled.Height;
int width = height * OriginalSource.Width / OriginalSource.Height;
Scaled.Mutate(x => x.DrawImage(OriginalSource.Clone(x => x.Resize(width, height, Sampler)), new Point((Scaled.Width - width) / 2, 0), new GraphicsOptions()));
}
}
Enumerable.Range(0, tiles).SelectMany(x => Enumerable.Range(0, tiles).Select(y => new { x, y })).AsParallel().ForAll((c) =>
{
using var Tile = new Image <Rgba32>(tile_size, tile_size);
lock (Scaled)
Tile.Mutate(x => x.DrawImage(Scaled.Clone(x => x.Crop(new Rectangle(c.x * tile_size, c.y * tile_size, tile_size, tile_size))), new Point(0, 0), new GraphicsOptions()));
var l = OutputDirectory.FullName + System.IO.Path.DirectorySeparatorChar + zoom.ToString() + "_" + c.x.ToString() + "_" + c.y.ToString() + ".png";
Tile.Save(l);
});
}
}
}
