kcc5
Class KCC_AngleFunction2Trap

Object
  common:Generic
      common:TrapShape
          kcc5:KCC_AngleFunction2Trap

class 
TrapShape:KCC_AngleFunction2Trap

The Angle Function 2 trap.

For an example of what this trap looks like, click here.

Ultra Fractal Source

Toggle UF Source Code Display

 class KCC_AngleFunction2Trap( common.ulb:TrapShape ) {
 ; The Angle Function 2 trap.
 ; <p>
 ; For an example of what this trap looks like,
 ; <a href="../additional/kcc5/images/Angle Function 2 Trap.jpg">click here</a>.
 ;
 public:
   import "common.ulb"
 
   ; constructor
   func KCC_AngleFunction2Trap( Generic pparent )
     TrapShape.TrapShape( pparent )
   endfunc
 
   ; call this before each sequence of values to be trapped
   func Init( complex pz )
     TrapShape.Init( pz )
   endfunc
 
   ; call this for each iteration being trapped
   float func Iterate( complex pz )
     TrapShape.Iterate( pz )
 
     aa = @angleFunc2Multiplier * atan( imag( pz ) / real( pz ) )
     aa = aa * aa + @juliaSeed
     v = @angleFunc2Function1( 1.0 - aa ) / aa
     distance = abs( |pz| - |v| )
 
     if( distance < @angleFunc2Size )
       m_LastChannel = m_Iterations
       
       m_Texture = distance / @angleFunc2Size
       
       return distance
     else
       return 1e20
     endif
   endfunc
 
   float func GetTextureValue()
     return m_Texture
   endfunc
 
 protected:
   float distance
   complex v
   complex aa
   float m_Texture
 
 default:
   title = "Angle Function 2"
 
   int param v_KCC_AngleFunction2Trap
     caption = "Version (KCC_AngleFunction2Trap)"
     default = 100
     hint = "This version parameter is used to detect when a change has been \
             made to the formula that is incompatible with the previous version. \
             When that happens, this field will reflect the old version number to \
             alert you to the fact that an alternate rendering is being used."
     visible = @v_KCC_AngleFunction2Trap < 100
   endparam
 
   float param angleFunc2Size
     caption = "Element Size"
     default = 0.1
     hint = "The size of the elements.  Suggested range (0.05 to 2.0)."
   endparam
 
   float param angleFunc2Multiplier
     caption = "Angle Multiplier"
     default = 1.0
     hint = "The angle multiplier.  Suggested range (0.01 to 3.14)."
   endparam
 
   complex param juliaSeed
     caption = "Julia Seed"
     default = (0.39375, 0.16875)
     hint = "If a Julia UFM is used, enter the Julia seed.  Otherwise, \
             this value modifies the trap.  Note:  This trap is similar \
             to, but not exactly the same as the MBF trap."
   endparam
 
   func angleFunc2Function1
     caption = "Function 1"
     default = ident()
     hint = "Modifier function 1."
   endfunc
 }
 

Constructor Summary

KCC_AngleFunction2Trap()

KCC_AngleFunction2Trap(Generic pparent)
constructor

Method Summary

float	GetTextureValue() Get texture value.
void	Init(complex pz) call this before each sequence of values to be trapped
float	Iterate(complex pz) call this for each iteration being trapped

Methods inherited from class common:TrapShape

GetColorChannel, GetTransformedPoint, IterateSilent, SetThreshold

Methods inherited from class common:Generic

GetParent

Methods inherited from class Object

Constructor Detail

KCC_AngleFunction2Trap

public KCC_AngleFunction2Trap(Generic pparent)

constructor

KCC_AngleFunction2Trap

public KCC_AngleFunction2Trap()

Method Detail

Init

public void Init(complex pz)

call this before each sequence of values to be trapped

Overrides:

Init in class TrapShape

Iterate

public float Iterate(complex pz)

call this for each iteration being trapped

Overrides:

Iterate in class TrapShape

GetTextureValue

public float GetTextureValue()

Description copied from class: TrapShape

Get texture value.

Ordinarily, a trap shape does not have a native texture (it is flat). Some formulas may pair trap shapes with trap textures, and may need more information about trap textures when trap shapes are nested via TrapShapeMerge. This function provides support for accessing texture information.

Overrides:

GetTextureValue in class TrapShape

Returns:

the texture value for the last point used (i.e. call GetTextureValue() after calling Iterate(), not before)