fractal

type Fractal struct {
	Width, Height int                // The width and height of the image to be constructed.
	R, G, B       histo.Histo        // The red, green and blue histograms.
	Method        *coloring.Coloring // Coloring method for the orbits.

	Importance     histo.Histo // Histogram of sampled points and their importance.
	PlotImportance bool        // Create an image of the sampling points color graded by their importance.

	// Function specific options.
	Iterations int64                                                // Number of iterations before assuming convergence.
	Bailout    float64                                              // (Squared) bailout radius.
	Plane      func(complex128, complex128) complex128              // Function to chose the capital plane.
	Func       func(complex128, complex128, complex128) complex128  // The complex function to explore!
	Register   func(complex128, complex128, *Orbit, *Fractal) int64 // Registering function for the orbits.
	Coef       complex128                                           // Complex coefficient used in the complex function.

	// Rendering specific options.
	Zoom   float64    // Zoom level of our render.
	Offset complex128 // Offset the camera center for the render.

	// Sampling specific options.
	Tries     float64 // Number of orbit attempts we will sample.
	Seed      int64   // The random seed we sample random points from.
	Threshold int64   // Threshold length of orbits.

	// Coloring method specific options.
	PathPoints  int64 // Number of intermediate points used for path interpolation.
	BezierLevel int   // Bezier interpolation level: 1 is linear, 2 is quadratic etc.

	Z, C func(complex128, *rand7i.ComplexRNG) complex128

	// Experimental options.
	Theta  float64 // Matrix rotation angle.
	Theta2 float64 // Second matrix rotation angle.
	// contains filtered or unexported fields
}

type Orbit struct {
	Points []complex128
	C      complex128
}