## reb Class REB_TrapShapeFibonacci

```Object
common:Generic
common:TrapShape
reb:REB_TrapShapeFibonacci
```

`class TrapShape:REB_TrapShapeFibonacci`

This shape based upon Fibonacci numbers

The trap shape is determined by distances from Fibonacci numbers. One of the interesting characteristics of the shape are multiple 3D like arrows that follow the flow shape of the trap.

Ultra Fractal Source
``` class REB_TrapShapeFibonacci(common.ulb:TrapShape) {
; This shape based upon Fibonacci numbers <br>
; <p>
; The trap shape is determined by distances from Fibonacci numbers. One of the
; interesting characteristics of the shape are multiple 3D like arrows that
; follow the flow shape of the trap.
public:
import "common.ulb"

; Constructor
func REB_TrapShapeFibonacci(Generic pparent)
TrapShape.TrapShape(pparent)
endfunc

; Call this for each iteration being trapped.
float func Iterate(complex pz)
TrapShape.Iterate(pz)
float f1 = 0
float f2 = 1
float d = 0
float d1 = 0
float d2 = 0
d1 =real(pz)-f2
while d1 > 0
float ftemp = f2
f2 = f1 + f2
f1 = ftemp
d1 = real(pz)-f2
endwhile
d = real(pz)-f1  ; which fibonacci number is closest
if d < abs(d1)
d1 = d
endif
f1 = 0
f2 = 1
d2 = imag(pz)-f2
while d2 > 0
ftemp = f2
f2 = f1 + f2
f1 = ftemp
d2 = imag(pz)-f2
endwhile
d = real(pz)-f1  ; which fibonacci number is closest
if d < abs(d2)
d2 = d
endif
d = 5*(abs(d1) + abs(d2))
m_LastZ = pz - (d1 + flip(d2))
return d
endfunc

default:
title = "Fibonacci"
int param v_trapshapefibonacci
caption = "Version (Trap Shape Fibonacci)"
default = 101
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_trapshapefibonacci < 101
endparam
}
```

Constructor Summary
`REB_TrapShapeFibonacci()`

`REB_TrapShapeFibonacci(Generic pparent)`
Constructor

Method Summary
` float` `Iterate(complex pz)`
Call this for each iteration being trapped.

Methods inherited from class common:TrapShape
`GetColorChannel, GetTextureValue, GetTransformedPoint, Init, IterateSilent, SetThreshold`

Methods inherited from class common:Generic
`GetParent`

Methods inherited from class Object

Constructor Detail

### REB_TrapShapeFibonacci

`public REB_TrapShapeFibonacci(Generic pparent)`
Constructor

### REB_TrapShapeFibonacci

`public REB_TrapShapeFibonacci()`
Method Detail

### Iterate

`public float Iterate(complex pz)`
Call this for each iteration being trapped.

Overrides:
`Iterate` in class `TrapShape`