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-
- This program is public domain
-
- It may be used, copied and spread without any restriction,
- as long as there is no payment demanded (except for disks
- and postage etc.)! The .dok and .doc files must also be
- copied along with the program.
-
-
-
- FFEX - The Fast Fractal Exploration Set
-
- Documentation:
-
- FFEX computes the well known Fractals and has all usual features like
- loading and saving (as IFF picture), different resolutions and different
- algorithms (Int_16 and Int_32 are faster, but have less precision than
- Real).
-
- The highlights of FFEX are that is written in modula-II (a highlight?!) and
- assembler, and the strange method that is used to create the pictures.
-
- Because of the pulldown menues and requesters the use of the program is
- very simple, so I describe only a few peculiarities:
-
- To define the detail to be zoomed, move the cursor (lens) to the middle of
- the region, and press the left mousebutton. Move the mouse whith pressed
- button, to define the region. The region is allways undistorted. When you
- release the button, the frame remains on the screen. To compute the new
- picture select "Render" from the "Action" menu. This has the benefit, that
- you can select another region if you whave selected a wrong one by chance
- or something like that.
-
-
- Important: If you change values in the "Setup/Limits" requester, the zoom
- frame will disappear, because the picture and with it the sector doesn't
- correnspond to the values any longer.
-
-
- FFEX saves the limits of every picture within the IFF-file. So if it loads
- the picture later, it knows the limits of the picture. This only works, if
- you don't load and save the picture within an other program, because this
- would destroy the limits saved in the picture, and FFEX won't load the
- picture anymore.
-
-
- Method of creating a picture:
-
- In a fractal a region of one color is never surrounded by an other color
- completely. FFEX uses this fact. It computes the border of a rectangle,
- and if the whole border has only one color, it can fill the rectangle with
- the same color, without computing the pixels in the rectangle. If the
- border is multicolored, it splits the rectangle into four smaller ones, and
- checks each of them, and so on, and so on ...
-
- This saves a lot of time, because FFEX needs not to compute the color of
- each pixel.
-
-
- Have fun! -Rob-
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- Robert Brandner / Schillerstr. 3 / A-8280 Fürstenfeld / AUSTRIA / EUROPE
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