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This ist a port of version 0.3 of the 'de Jong Explorer'
(http://freshmeat.net/projects/de_jong_explorer/)
to the Amiga platform. The source code has GPL and is included.
see http://mrustler.bei.t-online.de for some screenshots
Main differences between Amiga and original version:
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- ReAction GUI system instead of GTK+
- AmigaDos ReadArg (type 'dejong help' for parameters)
- saving in IFF-Format plus a parameter file instead of PNG
- loading from parameter file instead of loading from PNG
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set stack to 10000 when you start it from shell!
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de Jong Explorer
==================
Introduction
------------
The de Jong Explorer provides a rendering of the Peter de Jong map, with
an interactive ReAction frontend and a command line interface for easy and
efficient rendering of high-resolution, high quality images.
All the images you can create with this program are based on the simple
Peter de Jong map equations:
x' = sin(a * y) - cos(b * x)
y' = sin(c * x) - cos(d * y)
The point (x,y) moves chaotically. The resulting image is a map of the
probability that the point lies within the area represented by each
pixel. As you let the de Jong Explorer render longer, it collects more
samples and this probability map, the image, becomes more accurate.
The resulting probability map is treated as a High Dynamic Range image.
This software includes some image manipulation features that let you
apply linear interpolation and gamma correction at the full internal
precision, producing a much higher quality image than if you tried to
create the same effects using standard image processing tools.
Additionally, Gaussian blurs can be applied to the image using a
stochastic process that produces much more natural-looking images than
most programs, again without losing any of the image's original precision.
Loading and Saving
------------------
All images saved using the ReAction frontend or the 'o' command line option
are standard IFF. The parameters used to create the picture are saved in an
extra file with .dje extension. This means the image can be loaded
back in using the 'i' command line option or the "Parameters -> Load from image"
menu item.
One convenient use of this is to save small low-quality images using the
GUI, then use the 'i', 't', 's', and 'o' options to render very high quality
and/or large images noninteractively.
When using the 'o' (output) option, no GUI is presented. Instead, the
de Jong Explorer just outputs status lines every so often with the current
rendering process. These lines include:
- percent completion
- current number of iterations
- speed in iterations per second
- current and target peak density values
- elapsed and estimated remaining time
Bugs
----
- When the color window is opened, the sliders have the wrong colors
TODO
----
- Implementing functions of actual original version (currently 0.5)
- Tooltype for opening on public screen
HISTORY
-------
0.2 Virtual Gadget, Tooltype 'PubScreen'
0.1 First release
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Contents of gfx/fract/dejong.lha PERMSSN UID GID PACKED SIZE RATIO CRC STAMP NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic] 1370 1703 80.4% -lh5- d041 May 15 2004 deJong.info
[generic] 7014 17992 39.0% -lh5- 4902 May 27 2003 deJong/COPYING
[generic] 666 1077 61.8% -lh5- d59f Mar 30 2004 deJong/COPYING.info
[generic] 20540 38880 52.8% -lh5- 2a6e May 18 2004 deJong/deJong
[generic] 1164 1740 66.9% -lh5- a939 May 15 2004 deJong/deJong.info
[generic] 1570 3384 46.4% -lh5- 8095 May 15 2004 deJong/dejong.readme
[generic] 1837 2773 66.2% -lh5- 72cd Mar 30 2004 deJong/dejong.readme.info
[generic] 347 1034 33.6% -lh5- b93b Apr 4 2004 deJong/Makefile
[generic] 1369 1703 80.4% -lh5- f5a4 Mar 30 2004 deJong/src.info
[generic] 33 33 100.0% -lh0- 5439 Feb 21 2004 deJong/src/.indent.pro
[generic] 4324 16047 26.9% -lh5- bdb7 May 17 2004 deJong/src/callbacks.c
[generic] 722 1863 38.8% -lh5- 21d6 Mar 23 2004 deJong/src/callbacks.h
[generic] 2835 11801 24.0% -lh5- d544 May 17 2004 deJong/src/color-button.c
[generic] 1039 2160 48.1% -lh5- f353 May 15 2004 deJong/src/de-jong.h
[generic] 2990 15868 18.8% -lh5- a5ae May 15 2004 deJong/src/explorer.c
[generic] 941 1843 51.1% -lh5- bd4d Mar 30 2004 deJong/src/gtk.c
[generic] 422 1001 42.2% -lh5- 371d Mar 30 2004 deJong/src/gtk/gtk.h
[generic] 1215 3020 40.2% -lh5- b889 May 17 2004 deJong/src/interface.c
[generic] 1168 2812 41.5% -lh5- ae27 May 15 2004 deJong/src/interface.h
[generic] 6510 24307 26.8% -lh5- 6eb5 May 17 2004 deJong/src/main.c
[generic] 3652 9770 37.4% -lh5- 2bb8 Apr 4 2004 deJong/src/render.c
[generic] 1536 4065 37.8% -lh5- 15f3 Oct 27 2002 deJong/src/SDI_compiler.h
[generic] 2170 7968 27.2% -lh5- 1472 Oct 27 2002 deJong/src/SDI_hook.h
[generic] 1794 6251 28.7% -lh5- d659 May 15 2004 deJong/src/size.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
Total 24 files 67228 179095 37.5% May 19 2004
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