

 !Dive Instructions
--------------------
 
Introduction:

  On TV programs about fractals they often show amazing films of animated
dives into and out of the Mandelbrot set. These films will most probably be
made with a really awesome computer, and my guess is that they wouldn't
attempt to generate the image in real time but make up the film step by step
like an animation. However I thought it would be really excellent to have a
program that would do a dive in real time, so you could steer about and go
wherever you wanted. So I have been attempting to write such a program.
  !Dive is the present state of my work presented in a user friendly form,
it is fairly experimental ( that's my excuse anyway ) and so is still a bit
rough. I was going to write a text file explaining how the main routines in
the program work, but when I came to do it I realised it was going be a
fairly extensive venture, so best for any queries, comments etc, to be sent
to me at the address at the end ( unless you have better, i.e newer, address
to send them to ). 

Instructions:
 
  Full control of the program is by mouse and the various icons to the right
of the screen.

  Steering - Clicking on the four arrows at the top of the icons will
             cause the view to pan in various directions. The direction
             arrows are highlighted to show the current direction of
             motion. The arrows keys can also be used to activate these
             icons.

  Zooming  - The program can be switched between Zooming in, Zooming out
             and Scrolling across the set. Click on the second icon down
             to change the present option. The icon itself shows the current
             option. The 'Z' key may also be used.

  Restart  - Click on the next icon ( mini-Mandelbrot image ) to restart
             the program. Zoom type and direction arrows are reset.
 
  Redraw   - Click on the icon that looks like ( or is supposed to ) a
             pretty picture, and the image will be redrawn with no speedup
             algorithms ( ie the picture will be totally correctly drawn )
             Zoom type and direction arrows are not reset.

  Palette  - The palette shaped icon switches between various palettes,the 
             effect being immediatly obvious.
             
  Size     - The number in the small box with arrows above and below is the
             size of the image being processed in pixel dimensions ( the
             picture is always square ). Clicking on the arrows will raise
             or lower the size, but the effect will not be noticeable until
             either Restart or Redraw are selected. The idea of this is to
             reduce the image size, to increase the speed of processing, but
             I prefer the big image anyway.

  Info Box - At the bottom of the screen is a box showing the current X
             minimum, Y minimum and width of the image. This is only a rough
             guide, it stops being any use quite soon into the dive.

  Quitting - Press ESC to Quit the program.

  And there you have it, have fun, and don't get too annoyed when the
program screws up and puts lines all over the screen - I reserve that right!
  
                         John Hedley
                          15 Hill Rise
                           Trowell
                            Nottingham
                             NG9 3PE

