kcc5
Class KCC_ArcTangentTrap

Object
  common:Generic
      common:TrapShape
          kcc5:KCC_PlaneCurveTrapBase
              kcc5:KCC_ArcTangentTrap

class 
KCC_PlaneCurveTrapBase:KCC_ArcTangentTrap

The Arc Tangent trap.

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

Ultra Fractal Source

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 class KCC_ArcTangentTrap( KCC_PlaneCurveTrapBase ) {
 ; The Arc Tangent trap.
 ; <p>
 ; For an example of what this trap looks like,
 ; <a href="../additional/kcc5/images/Arc Tangent Trap.jpg">click here</a>.
 ;
 public:
   import "common.ulb"
 
   ; constructor
   func KCC_ArcTangentTrap( Generic pparent )
     KCC_PlaneCurveTrapBase( pparent )
   endfunc
 
   ; call this before each sequence of values to be trapped
   func Init( complex pz )
     KCC_PlaneCurveTrapBase.Init( pz )
   endfunc
 
   ; call this for each iteration being trapped
   float func Iterate( complex pz )
     pz = ApplyRatioAndSize( pz )
     
     x = real( pz )
     y = imag( pz )
 
     ; Compute the Arc Tangent curve
     pz = @fn1(atan(@fn2(x^@shapeAdjust1*@shapeAdjust3))- \
          @fn3(y^@shapeAdjust2))-@distort
          
     ; Check to see if the point is trapped.
     return KCC_PlaneCurveTrapBase.Iterate( pz )
   endfunc
 
   float func GetTextureValue()
     return m_Texture
   endfunc
 
 protected:
   float x
   float y
 
 default:
   title = "ArcTangent Trap"
 
   int param v_KCC_ArcTangentTrap
     caption = "Version (KCC_ArcTangentTrap)"
     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_ArcTangentTrap < 100
   endparam
 
   float param distort
     caption = "Fission"
     hint = "Generally stretches and splits the elements"
     default = 0
     visible = @adv
   endparam
 
   float param shapeAdjust1
     caption = "Shape Adj. I"
     default = 1.0
     hint = "Shape adjustment parameter I."
   endparam
 
   float param shapeAdjust2
     caption = "Shape Adj. II"
     default = 1.0
     hint = "Shape adjustment parameter II."
   endparam
 
   float param shapeAdjust3
     caption = "Shape Adj. III"
     default = 1.0
     hint = "Shape adjustment parameter III."
     visible = @adv
   endparam
 
 ;--------------------------------------------------------------------
 ; Adjustment Functions applied to the formulas.
 ;--------------------------------------------------------------------
 
   func fn1
     default = abs ()
     hint = "Changes the shapes of the elements and their relations to each other"
     visible = @adv
   endfunc
 
   func fn2
     default = ident ()
     hint = "Changes the shapes of the elements and their relations to each other"
     visible = @adv
   endfunc
 
   func fn3
     default = ident ()
     hint = "Changes the shapes of the elements and their relations to each other"
     visible = @adv
   endfunc
 }
 

Constructor Summary

KCC_ArcTangentTrap()

KCC_ArcTangentTrap(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 kcc5:KCC_PlaneCurveTrapBase

ApplyRatioAndSize

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_ArcTangentTrap

public KCC_ArcTangentTrap(Generic pparent)

constructor

KCC_ArcTangentTrap

public KCC_ArcTangentTrap()

Method Detail

Init

public void Init(complex pz)

call this before each sequence of values to be trapped

Overrides:

Init in class KCC_PlaneCurveTrapBase

Iterate

public float Iterate(complex pz)

call this for each iteration being trapped

Overrides:

Iterate in class KCC_PlaneCurveTrapBase

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 KCC_PlaneCurveTrapBase

Returns:

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