file types

  • 1 Replies
  • 383 Views

0 Members and 1 Guest are viewing this topic.

Offline Adam Majewski

  • *
  • Fractal Feline
  • **
  • Posts: 162
« on: September 15, 2017, 09:45:13 PM »
Hi,

I have found in the code file type: kfc and kfd files.
What is the purpose of these files?

TIA

https://en.wikibooks.org/wiki/Fractals/kallesfraktaler#files

Offline claude

  • *
  • 3f
  • ******
  • Posts: 1206
    • mathr.co.uk
« Reply #1 on: September 19, 2017, 11:21:30 PM »
They are strings found inside .kfb files (the first 3 bytes) to distinguish different versions of the data format stored in the file.

"KFB" is bNewFormat 0, vertical lines of int32 iteration plane followed by float32 smooth colouring plane.
"KFC" is bNewFormat 1, vertical lines of float32 combined data (int32 iteration + float32 smooth)
"KFD" is bNewFormat 2, horizontal lines of float32 combined data (int32 iteration + float32 smooth)

As far as I can tell, only "KFB" is actually saved by current versions of Kalles Fraktaler.

"KFB" is also the only format that preserves smooth colouring at high iteration counts, because single precision float32 can only represent integers after 2^24 = 16M, can only represent even integers after 2^25 = 33M, etc, with gradual degradation before that.


xx
Opening a map-file gives 'Invalid parameter file'.

Started by fractal on Kalles Fraktaler

2 Replies
71 Views
Last post August 09, 2019, 08:31:29 AM
by fractal
clip
Playing with 4D types.....

Started by FractalDave on Fractal Mathematics And New Theories

3 Replies
216 Views
Last post August 14, 2018, 03:38:22 AM
by FractalDave
clip
robots txt file in SEO

Started by Anon on Discuss Fractalforums

4 Replies
268 Views
Last post September 20, 2017, 12:05:12 AM
by Anon
xx
pdf file in japan

Started by Adam Majewski on Fractal Mathematics And New Theories

10 Replies
499 Views
Last post December 01, 2017, 11:05:31 PM
by gerrit
xx
kfb file format

Started by gerrit on Kalles Fraktaler

2 Replies
271 Views
Last post January 09, 2018, 06:11:45 PM
by gerrit