                                *************************
                               * RIM Fractales & Rosaces *
                                *************************

	This is the registered version dated 97/03/10 of those modules for 
PARX.SYS folder.

I Installation:
~~~~~~~~~~~~~~~
	Copy all RIM files from the corresponding folder, to the sub-folder 
RIM of the PARX.SYS folder used by your M&E programs:
- 68000: for Atari ST,STF,STE, Mega ST, Mega STE, MagicMac, Magic PC,
- 68030: for Atari F030, C-LAB MK or PAK3,
-   FPU: for Atari TT and F030 with a maths coprocessor (FPU 68881 
or 68882)

	If you're not sure, use 68000 modules they work on every Atari and 
even emulators.

II Use:
~~~~~~~
	You need a compatible M&E program (D2M, Dform, Piccolo, Bv4, ...). 
Then, choose "Acquire" and select one of the following:
	Gnration fractales 1 DEMO    - Fractals maker DEMO 1
	Gnration fractales 2 DEMO
	Gnration fractales 3 DEMO
	Gnration rosaces DEMO  EDC  - Rose Maker

I can't find a proper translation for "rosaces". The nearest I've thought 
about is [ceiling] rose so I'll use this word. Forgive me if it's inadequate 
and mail me the correct name if you can ;-)

  1) Fractals makers.
  	They share a common form which automatically fits to the screen 
resolution. 420 pixels wide is required for the more comfortable use. Falcon's 
TC16 mode (65000 colors) allows color preview instead of mono.

	The graphic window has the following coordinates:
"x0","y0": upper-left corner, editable,
"x1","y1": bottom-rigth corner, set up by (x0,y0) and the current zoom 
factor.

	Significations of the abreviations and use:
"Nb": number of iterations. This has a direct impact on the number of 
colors. The greater it is, sharper is the drawing and the time needed 
increases.

"Seuil": "Thresold": defines when the series is diverging.

Points where the series is diverging constitute the outside of the set. 
Their color is given by the first palette at the left bottom. Points where 
the series stay under this limit constitute the Julia or Mandelbrot set. By 
default it is drawn black. But with the second palette you can choose to 
draw it with a color proportionnal to the magnitude of the last term 
normalised with the thresold.

"Julia": If it's on, the following constant is used to get a Julia set. If not
the mandelbrot uses current pixel coordinates for calculus.

"Re","Im": Real and imaginary part for Julia constant (c=Re+iIm). 
Typically -2<Re<2, -2<Im<2.

Shift+ Up, Down, Right, Left arrow: moves graphical window one fourth in this 
direction.
       Up, Down, Right, Left arrow: moves graphical window half a page in this 
direction.
Cnt+   Up, Down, Right, Left arrow: moves graphical window one page in this 
direction.

Shift+ "+","-": zooms in,out (*1.5, /1.5)
       "+","-": zooms in,out (*2,   /2)
Cnt+   "+","-": zooms in,out (*4,   /4)

You can select one among 5 palettes for the outside of the fractal set by 
clicking under Julia box. The second palette (rightmost) selects one among 5 
or black (quickest to render) for the inside.

"Ok": renders the set with the size choosen at the start.
"Test" or clic on preview box: renders a 3 pass preview. 
(Undo or Esc to cancel).
"Exemple": automatically fills the form with one among twelve examples worth 
seeing.
"Annuler": "Cancel": does nothing and exits with an error.

Fractal I
	This module renders the ultra-famous Mandelbrot & Julia sets. But you 
can choose another power than 2 to get cubic or quadradic sets.

Fractal II:
	This module renders 3 different sets: Octo, Barnsley, Phoenix. 
Barnsley and Phoenix are especially interesting for their Julia sets whereas 
Octo Julia set are identical to their Mandelbrot sets.

Fractal III:
	This module calculates for each point the number of iteration needed 
for solving z^n+c=0 by Newton-Raphson algorithm.

n can be choosen between 3 and 5: "Newton^3","Newton^4","Newton^5".
c is the julia constant if it's turned on.

  2) Rose maker.
This module draws roses with 2 parameters:
    "k": is the scaling factor.
 "INC": is the angle increment in degree.

There are 5 commands:
 "Hasard": "Random": choose parameters randomly.
"Exemple": "Example": automatically fills the form with one among 15 examples.
     "Ok": Draws the rose with the size choosen at the start of this module. 
Note that a rose us circular. So if you choose 1200*200 only a 200*200 
part will be used.
"Test" or click in preview box: renders a preview with current settings.
"Annuler": "Cancel": Exits with an error without doing anything.

III Copyright & co:
~~~~~~~~~~~~~~~~~~~
	All modules in this pack are registered to you. They're dedicated to 
your own use. Except the use of "M&E" they have no link with PARX firm. All 
trade marks are quoted as examples only.

	If an update was available all you need to get it it would be to 
send me a disk with a self-adressed stamped envellope at:

	   Da Cunha Eric
	 23, rue du Hameau
	    75015 PARIS
	      France

	You can also contact me by E-mail da-cun_e@epita.fr for any 
informations.
