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- fexplore.doc - documentation for using Mandlebroit exploration program.
-
- This program produces colored pictures of fractals on a Tseng-Labs 4000
- extended vga card. It displays them with resolution 1024 X 768 with
- 256 colors. Since computing a pixels value takes so long, special logic
- is used so faster pixels are computed first. Basically the program tries to
- ignore any "black" areas, since they are time-consuming to calculate. So it
- attempts to calculate the colored areas first. Over time it will
- cover all points.
-
- To use the program simply run it (redirect stdout if you don't
- want to see the complex-number coordinates of the image).
-
- FEXPLORE >out
-
- Press Q at any time to quit.
- Any other key brings up a box which lets you zoom into a region
- of the complex plane (for a new fractal).
-
- The following keys do stuff:
- cursors - move zoom box in appropriate direction
-
- x - shrinks view box in X dimension
- y - shrinks view box in Y dimension
- z - shrinks view box in both dimensions
-
- X - expands view box in X dimension
- Y - expands view box in X dimension
- Z - expands view box in both dimensions
-
- r - enable/disable color palette rotation
- Q - quits
- S - saves image in file (can be viewed with DISPLAY).
- ENTER - accepts current change box, calculating new image
- ESC - exits change box mode
-
- About saving images:
- Images are stored in a simple binary file. The format is four doubles
- (specifying complex number coordinates of region image is from), followed
- by the contents of the graphic frame buffer. So the files get huge: 768K.
- Images are automatically saved in filename: IMAGE.n where n==1..18, one
- for each image you've saved. You should rename image.* to another name
- so the images won't be overwritten when the next series is saved. Note
- that display always uses FIRST.IMG as the starting image, so you don't have
- to save the first image to disk. See the FDISPLAY program for information
- on displaying them.
-
- If you use this program regularly, please send $10.00 to:
- TDRMSoft
- 400 Central Park West - 20R Source code in C available for $50.00
- New York, NY 10025-5858 Tom Milne
- (212)-865-2719 TMILNE@AOL.COM
-
- Free source code for anyone that helps me add graphic modes to those supported.
-
-
- ****** NOTE: If you don't have a ET4000 super-vga chip set, use FEXPLVGA
-