Standard
Class Standard_Twist

Object
  common:Generic
      common:Transform
          common:UserTransform
              Standard:Standard_Twist

class 
UserTransform:Standard_Twist

Object version of Twist in Standard.uxf. Adds a twisted spiral to the layer. Originally written by Luke Plant.

Ultra Fractal Source

Toggle UF Source Code Display

 class Standard_Twist(common.ulb:UserTransform) {
 ;
 ; Object version of Twist in Standard.uxf.
 ; Adds a twisted spiral to the layer.
 ;
 ; Originally written by Luke Plant.
 ;
 public:
   complex func Iterate(complex pz)
     d = (pz-@center)
     return d*exp(flip(@twist*exp(-|d|*@dec)))  + @center
   endfunc
   
 default:
   title = "Twist"
   helpfile = "Uf*.chm"
   helptopic = "Html/transformations/standard/twist.html"
   param center
     caption = "Twist Center"
     default = (0.5,0.1)
     hint = "Center of the twisted spiral. Use the Eyedropper to set \
             this parameter."
   endparam
   param twist
     caption = "Strength"
     default = 8.0
     hint = "Adjusts the strength of the spiral. Larger values will \
             create more strongly twisted spirals."
   endparam
   param dec
     caption = "Decay Factor"
     default = 10.0
     hint = "Specifies how soon the spiral loses its strength. Larger \
             values will create smaller spirals."
   endparam
 }
 

Constructor Summary

Standard_Twist()

Method Summary

complex

Iterate(complex pz) Transform a single point within a sequence

Methods inherited from class common:Transform

Init, IsSolid, IterateSilent

Methods inherited from class common:Generic

GetParent

Methods inherited from class Object

Constructor Detail

Standard_Twist

public Standard_Twist()

Method Detail

Iterate

public complex Iterate(complex pz)

Description copied from class: Transform

Transform a single point within a sequence

After a sequence has been set up with Init(), this function will be called once for each value in the sequence. Note that all values in the sequence must be processed in order (they cannot be processed out of order). If the sequence contains only one value, Init() will still be called and then Iterate() will be called just once.

Overrides:

Iterate in class Transform

Parameters:

pz - the complex value to be transformed

Returns:

the transformed value