public BuddhabrotPoint(float cx, float cy, long iteration)
{
Iteration = iteration;
X = cx;
Y = cy;
if (Extensions.IsInBulb(cx, cy) || Extensions.IsInCardiod(cx, cy))
{
// convergent
return;
}
else
{
const float EscapeNorm = 4;
float x = cx, y = cy, xx = x * x, yy = y * y;
for (int i = 1; i <= Iteration; i++)
{
Orbit.Add(new PointF(x, y));
y = 2 * x * y + cy;
x = xx - yy + cx;
xx = x * x;
yy = y * y;
if (xx + yy >= EscapeNorm)
{
break;
}
}
}
}
public long MakeOneOrbit()
{
int size = Size;
double dx = (XMax - XMin) / size;
double dy = (Ymax - YMin) / size;
double cx = XMin + Rand.NextDouble() * (XMax - XMin);
double cy = YMin + Rand.NextDouble() * (Ymax - YMin);
if (Extensions.IsInBulb(cx, cy) || Extensions.IsInCardiod(cx, cy))
{
return(TotalHits);
}
const double EscapeNorm = 4;
// Zet Z0.
double x, xx, y, yy;
x = cx;
y = cy;
xx = x * x;
yy = y * y;
bool divergent = false;
// Iterate.
for (int i = 1; i <= Iteration; i++)
{
y = 2 * x * y + cy;
x = xx - yy + cx;
xx = x * x;
yy = y * y;
if (xx + yy >= EscapeNorm)
{
divergent = true;
break;
}
}
if (divergent)
{
// Plot.
x = cx;
y = cy;
xx = x * x;
yy = y * y;
// Iterate.
for (int i = 1; i <= Iteration; i++)
{
int ix = (int)Math.Round((x - XMin) / dx);
int iy = (int)Math.Round((y - YMin) / dy);
if (0 <= ix && ix < size && 0 <= iy && iy < size)
{
Hits[iy, ix]++;
TotalHits++;
}
else
{
// break;
}
y = 2 * x * y + cy;
x = xx - yy + cx;
xx = x * x;
yy = y * y;
if (xx + yy >= EscapeNorm * 10)
{
break;
}
}
}
return(TotalHits);
}