kcc5
Class KCC_ConesTrap

Object
  common:Generic
      common:TrapShape
          kcc5:KCC_ConesTrap

class 
TrapShape:KCC_ConesTrap

The Cones trap.

When using this with Orbit Traps Direct (UF5), the Trap Threshold parameter needs to be set high. Also, the Trap Merge Order needs to be bottom-up rather than top-down.

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

Ultra Fractal Source

Toggle UF Source Code Display

 class KCC_ConesTrap( common.ulb:TrapShape ) {
 ; The Cones trap.
 ; <p>
 ; When using this with Orbit Traps Direct (UF5), the Trap Threshold
 ; parameter needs to be set high.  Also, the Trap Merge Order needs
 ; to be bottom-up rather than top-down.
 ; <p>
 ; For an example of what this trap looks like,
 ; <a href="../additional/kcc5/images/Cones Trap.jpg">click here</a>.
 ;
 public:
   import "common.ulb"
 
   ; constructor
   func KCC_ConesTrap( Generic pparent )
     TrapShape.TrapShape( pparent )
   endfunc
 
   ; call this before each sequence of values to be trapped
   func Init( complex pz )
     TrapShape.Init( pz )
     
     prev_z = pz
   endfunc
 
   ; call this for each iteration being trapped
   float func Iterate( complex pz )
     TrapShape.Iterate( pz )
 
     ; Color is not set until Maximum Iterations reached.
 
     m_LastChannel = m_Iterations + 1
 
     angle = abs( atan( ( imag( pz ) - imag( prev_z ) ) / ( real( pz ) - real( prev_z ) ) ) )
     if( ( real( pz ) - real( prev_z ) ) < 0.0 )
       angle = #pi - angle
     endif
 
     m_Texture = angle / #pi
     
     prev_z = pz
     
     return angle
   endfunc
 
   float func GetTextureValue()
     return m_Texture
   endfunc
 
 protected:
   complex prev_z
   complex initialZ
   float angle
   float m_Texture
 
 default:
   title = "Cones Trap"
   
   heading
     caption = "Information"
     text = "When this trap is used with the Orbit Traps Direct (UF5) \
            coloring in dmj5.ucl, the Trap Threshold parameter needs to \
            be set high.  Also, the Trap Merge Order needs to be bottom-up \
            rather than top-down."
   endheading
 
   int param v_KCC_ConesTrap
     caption = "Version (KCC_ConesTrap)"
     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_ConesTrap < 100
   endparam
 }
 

Constructor Summary

KCC_ConesTrap()

KCC_ConesTrap(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_ConesTrap

public KCC_ConesTrap(Generic pparent)

constructor

KCC_ConesTrap

public KCC_ConesTrap()

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)