Procedurality.Channel.sine C# (CSharp) Method

		public Channel sine(int frequency) {
			for (int y = 0; y < height; y++) {
				for (int x = 0; x < width; x++) {
					putPixel(x, y, (float)Math.Sin(Math.PI*2*frequency*getPixel(x, y)));
				}
			}
			return this;
		}