mt
Class MT_PopcornJulia

Object
  common:Generic
      common:Formula
          common:DivergentFormula
              mt:MT_PopcornJulia

class 
DivergentFormula:MT_PopcornJulia

Mark Townsend, May 2008

Ultra Fractal Source

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 class MT_PopcornJulia(common.ulb:DivergentFormula) {
 ;
 ; Mark Townsend, May 2008
 ;
 public:
   complex func Init(complex pz)
     return pz
   endfunc
 
   complex func Iterate(complex pz)
     float x = real(pz)
     float y = imag(pz)
     float xx = x
     x = x - @h * sin(y + tan(3 * y))
     y = y - @h * sin(xx + tan(3 * xx))
     return (x + flip(y))
   endfunc
 
 default:
   title = "Popcorn Julia"
   param p_power
     visible = false
   endparam
   float param h
     caption = "Step Size"
     default = (0.05)
   endparam
   float param p_bailout
     caption = "Bailout value"
     default = 4
     min = 1.0
     exponential = true
   endparam
 }
 

Constructor Summary

MT_PopcornJulia()

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_PopcornJulia

public MT_PopcornJulia()

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