public static void PointToComplex(Point value, MandelState state, out double real, out double imaginary)
{
double x = value.X;
double y = value.Y;
var statealias = state.alias;
var statewidth = state.width;
var statesize = state.size;
var statePointX = state.curAnti % state.alias;
var statePointY = state.curAnti / state.alias;
double re = 2d * state.addX * statesize +
-statealias * statesize * statewidth +
2d * statesize * statePointX +
2d * statealias * statesize * x;
double im = 2d * state.addY * statesize +
-statealias * state.height * statesize +
2d * statesize * statePointY +
2d * statealias * statesize * y;
double temp = 2d * statealias * statewidth;
re = temp * state.centerX + re;
im = temp * state.centerY + im;
temp = (state.rotate * 3.141592653589) / (180d);
double re2 = Math.Cos(temp);
double im2 = Math.Sin(temp);
temp = (1d / (2d * statealias * statewidth));
real = (re * re2 - im * im2) * temp;
imaginary = (im * re2 + re * im2) * temp;
}
public static void ComplexToPoint(Complex value, MandelState state, out int ptx, out int pty)
{
var re = value.Real;
var im = value.Imaginary;
var rot = state.rotate;
var width = state.width;
var size = state.size;
double rotx = re * Math.Cos(0.0174532925199432 * -rot) - im * Math.Sin(0.0174532925199432 * -rot);
double roty = re * Math.Sin(0.0174532925199432 * -rot) + im * Math.Cos(0.0174532925199432 * -rot);
double x = (width * (-state.centerX + 0.5 * size + rotx)) / size;
double y = (0.5 * state.height * size - state.centerY * width + width * roty) / size;
ptx = (int)Math.Round(x);
pty = (int)Math.Round(y);
}
public static MandelState CreateState()
{
MandelState state = new MandelState();
state.alias = Settings.Alias;
state.curAnti = 0;
state.width = Settings.Width;
state.height = Settings.Height;
state.centerX = -0.174563485365959;
state.centerY = -0.11673726730093;
state.size = 3.8;
state.rotate = 326.227841772776;
state.addX = 0;
state.addY = 0;
state.pointCount = state.alias * state.alias;
return state;
}
static extern void PH_WorkerCalcPixel(ref WorkItem item, ref MandelState state, IntPtr common, IntPtr thread);
