public FastBitmap CreateBitmap(CalculatedFractalPart calculatedFractalPart, IFractalSettings settings, IShader shader)
{
var fastBitmap = new FastBitmap(
calculatedFractalPart.ScreenPosition.Right - calculatedFractalPart.ScreenPosition.Left + 1,
calculatedFractalPart.ScreenPosition.Bottom - calculatedFractalPart.ScreenPosition.Top + 1);
using (var lazyGraphics = new LazyGraphics(fastBitmap.Bitmap))
{
using (var pens = new PenCache())
{
foreach (var path in calculatedFractalPart.Paths)
{
var color = shader.GetColor(path.Value, settings.MaxIterations);
DrawPath(path, color, fastBitmap, pens, lazyGraphics);
}
}
}
return(fastBitmap);
}
private static void DrawPath(FractalPath path, Color color, FastBitmap fastBitmap, PenCache pens, LazyGraphics lazyGraphics)
{
if (path.IsPixel)
{
var point = path.GetFirstPoint();
fastBitmap.SetPixel((int)point.X, (int)point.Y, color);
return;
}
var pen = pens.GetOrCreatePen(color);
if (path.IsLine)
{
lazyGraphics.Value.DrawLine(pen, path.GetFirstPoint().ToDrawingPoint(), path.GetSecondPoint().ToDrawingPoint());
return;
}
for (var i = 0; i < path.Points.Length - 1; i++)
{
lazyGraphics.Value.DrawLine(pen, path.Points[i].ToDrawingPoint(), path.Points[i + 1].ToDrawingPoint());
}
}
