mt
Class MT_BarnsleyIJulia

Object
  common:Generic
      common:Formula
          common:DivergentFormula
              mt:MT_BarnsleyIJulia

class 
DivergentFormula:MT_BarnsleyIJulia

Based on Barnsley 1 (Julia) in Fractint.ufm

Mark Townsend, May 2008

Ultra Fractal Source

Toggle UF Source Code Display

 class MT_BarnsleyIJulia(common.ulb:DivergentFormula) {
 ;
 ; Based on Barnsley 1 (Julia) in Fractint.ufm
 ; <p>
 ; Mark Townsend, May 2008
 ;
 public:
   complex func Init(complex pz)
     return pz
   endfunc
 
   complex func Iterate(complex pz)
     if real(pz) >= 0
       return (pz - 1) * @p_seed
     else
       return (pz + 1) * @p_seed
     endif
   endfunc
 
 default:
   title = "Barnsley I Julia"
   param p_seed
     caption = "Julia seed"
     default = (0.6, 1.1)
   endparam
   param p_power
     visible = false
   endparam
   float param p_bailout
     caption = "Bailout value"
     default = 4
     min = 1.0
     exponential = true
   endparam
 }
 

Constructor Summary

MT_BarnsleyIJulia()

Method Summary

complex	Init(complex pz) Set up for a sequence of values
complex	Iterate(complex pz) Produce the next value in the sequence

Methods inherited from class common:DivergentFormula

GetUpperBailout, IsBailedOut

Methods inherited from class common:Formula

GetLowerBailout, GetPrimaryExponent

Methods inherited from class common:Generic

GetParent

Methods inherited from class Object

Constructor Detail

MT_BarnsleyIJulia

public MT_BarnsleyIJulia()

Method Detail

Init

public complex Init(complex pz)

Description copied from class: DivergentFormula

Set up for a sequence of values

This function will be called at the beginning of each sequence of values (e.g. at the beginning of each fractal orbit).

Overrides:

Init in class DivergentFormula

Parameters:

pz - seed value for the sequence; for a normal fractal formula, this will be #pixel

Returns:

first value in the sequence; this corresponds to #z in a fractal formula

Iterate

public complex Iterate(complex pz)

Description copied from class: Formula

Produce the next value in the sequence

As long as the sequence has not bailed out, this function will be continually called to produce sequence values.

Overrides:

Iterate in class Formula

Parameters:

pz - previous value in the sequence; corresponds to #z in a fractal formula. Note that you should always use this value for computing the next iteration, rather than a saved value, as the calling code may modify the returned value before passing it back to the next Iterate() call.

Returns:

the next value in the sequence