mt
Class MT_TextureTransform

Object
  common:Generic
      common:Transform
          common:UserTransform
              mt:MT_TextureTransform

class 
UserTransform:MT_TextureTransform

From TrapTransform in common.ulb

Ultra Fractal Source

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 class MT_TextureTransform(common.ulb:UserTransform) {
 ;
 ; From TrapTransform in common.ulb
 ;  
 public:
   func MT_TextureTransform(Generic pparent)
     UserTransform.UserTransform(pparent)
   endfunc
 
   func Init(complex pz)
     UserTransform.Init(pz)
     m_Rotation = (0,1) ^ (@p_texturerotation / 90.0)
     m_Skew = (0,1) ^ (@p_textureskew / 90.0)
     m_TextureCenter = @p_texturecenter
   endfunc
 
   complex func Iterate(complex pz)
     ; apply offset and rotation and size
     pz = (pz - m_TextureCenter) * m_Rotation * recip(@p_texturescale)
     ; apply aspect
     if (@p_textureaspect != 1.0)
       pz = real(pz) + flip(imag(pz) * @p_textureaspect)
     endif
     ; apply skew
     pz = real(pz * m_Skew) + flip(imag(pz))
     
     return pz
   endfunc
   
 protected:
   complex m_Rotation
   complex m_Skew
   complex m_TextureCenter
 
 default:
   title = "Texture Position"
   complex param p_texturecenter
     caption = "Center"
     default = (0,0)
     hint = "This is the location of the texture in the complex plane."
   endparam
   float param p_texturescale
     caption = "Scale"
     default = 1.0
     hint = "This can be used to resize the texture. "
   endparam
   float param p_texturerotation
     caption = "Rotation"
     default = 0.0
     hint = "This is the angle, in degrees, that the texture should be rotated."
   endparam
   float param p_textureskew
     caption = "Skew"
     default = 0.0
     hint = "This is the angle, in degrees, to skew the vertical axis of the texture."
   endparam  
   float param p_textureaspect
     caption = "Aspect Ratio"
     default = 1.0
     hint = "This is how square the texture is. You can distort the texture by using a value other than 1.0."
   endparam
 }
 

Constructor Summary

MT_TextureTransform()

MT_TextureTransform(Generic pparent)

Method Summary

void	Init(complex pz) Set up for a sequence of values
complex	Iterate(complex pz) Transform a single point within a sequence

Methods inherited from class common:Transform

IsSolid, IterateSilent

Methods inherited from class common:Generic

GetParent

Methods inherited from class Object

Constructor Detail

MT_TextureTransform

public MT_TextureTransform(Generic pparent)

MT_TextureTransform

public MT_TextureTransform()

Method Detail

Init

public void Init(complex pz)

Description copied from class: Transform

Set up for a sequence of values

This function will be called at the beginning of each sequence of values (e.g. at the beginning of each fractal orbit). It will be called even if only one value is being transformed (e.g. a normal transformation formula). Use this to perform any setup that is exactly the same for each value in the sequence being transformed.

Overrides:

Init in class Transform

Parameters:

pz - the value representing the sequence; for a normal transformation formula use, this will be #pixel. In some cases this may differ from the first value passed to Iterate() if the calling code applies some other transformations.

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