rj@amiga.UUCP (Robert J. Mical) (12/31/85)
/*
MAND4.C - Information
Mandelbrot Self-Squared Dragon Generator
For the Commodore Amiga
Version 2.00
Accompanies MAND.C
Copyright (C) 1985, Robert S. French
Placed in the Public Domain
Assorted Goodies and Intuition-stuff by =RJ Mical= 1985
This program may be distributed free of charge as long as the above
notice is retained.
*/
/* === IMPORTANT NOTE: =================================================
* If you are going to design Information pages, make sure that all
* lines are a maximum of 59 characters long. Also, make sure that
* there are 19 lines at most per page. These two restrictions
* combined comprise the reason why the info pages are (and should
* remain) terse.
* =====================================================================
*/
#include "mand.h"
extern FILE *console;
Information(page)
SHORT page;
{
FILE *c;
c = console;
switch (page) {
case 0:
case 1:
fprintf(c, "Mandelbrot Self-Squared Dragon Generator Version %s\n", VERSION);
fputs("Copyright (C) 1985 - Robert S. French\n",c);
fputs("Extensively augmented (with Intuition!) by =RJ Mical= 1985\n",c);
fputs("Placed in the public domain\n",c);
fputs("\n",c);
fputs("Inspired by Scientific American, August/1985\n",c);
fputs("Corrections and improvements suggested by\n",c);
fputs("\"The Fractal Geometry of Nature\"\n",c);
fputs("By Benoit Mandelbrot, W.H. Freeman and Company, 1983\n",c);
fputs("(Used to be Z=Z^2+C, now is Z=Z^2-u, etc.)\n",c);
fputs("\n",c);
fputs("Robert S. French may be contacted at:\n",c);
fputs(" USPS: 2740 Frankfort Avenue\n",c);
fputs(" Louisville, Ky 40206\n",c);
fputs(" Phone: (502) 897-5096 ARPA: French#Robert%d@LLL-MFE\n",c);
fputs("=RJ Mical= may be contacted at:\n",c);
fputs(" Commodore-Amiga, Inc.\n",c);
fputs(" 983 University Avenue\n",c);
fputs(" Los Gatos, CA 95030\n",c);
break;
case 2:
fputs("The Mandelbrot set consists of pairs of numbers, one number\n",c);
fputs("real and the other complex. This set can be graphed using\n",c);
fputs("one axis for the real numbers and the other for the complex\n",c);
fputs("numbers. The Mandelbrot set is located on a graph roughly\n",c);
fputs("centered over the origin (0,0). The default settings of\n",c);
fputs("this program create a display that shows the entire set.\n",c);
fputs("All of the black display pixels represent Mandelbrot pairs.\n",c);
fputs("The shaded pixels show the pairs that are *almost* in the\n",c);
fputs("set. The pairs nearest the set on the display just miss\n",c);
fputs("making it into the set numerically; these are white. The\n",c);
fputs("more grey a position, the further the pair is from the set.\n",c);
fputs(" This program lets you explore the Mandelbrot set by\n",c);
fputs("panning across and zooming in to look at details of the set.\n",c);
fputs("You can also change colors and display mode. For instance:\n",c);
fputs(" : CS 1 ; Use the fancy arrangements of color set 1\n",c);
fputs(" : CO 29 ; Set the initial color offset\n",c);
fputs(" : CI 4 ; Set the color increment\n",c);
fputs(" : MC 29 ; Set the maximum tests count\n",c);
fputs(" : G ; Generate the picture\n",c);
break;
case 3:
fputs("The MC command lets you specify how many times each position\n",c);
fputs("is tested to see whether or not it's in the Mandelbrot set.\n",c);
fputs("A low MC value means that very few tests will be done on\n",c);
fputs("position, which will cause the display to be created more\n",c);
fputs("quickly, but which will also have a cruder approximation of\n",c);
fputs("the Mandelbrot set and, consequently, fewer colors.\n",c);
fputs("\n",c);
fputs("The MX and MY commands set the size of the display window.\n",c);
fputs("The larger your window, the longer it takes for the picture\n",c);
fputs("to be resolved. While you're experimenting with the\n",c);
fputs("program, you should create a smaller window with a lower\n",c);
fputs("count value until you get approximately the picture that you\n",c);
fputs("want to see. Then when you've gotten a picture you want to\n",c);
fputs("see in large scale, increase the size and count resolution\n",c);
fputs("to see the detailed version of your picture. For instance:\n",c);
fputs(" : MC 8 ; Each position will be tested only 8 times\n",c);
fputs(" : MX 80 ; The width is 25% of full width\n",c);
fputs(" : MY 50 ; The height is 25% of full height\n",c);
fputs(" : G ; Generate the picture\n",c);
break;
case 4:
fputs(" : CS 1 ; Color set 1 (special ranges of colors)\n",c);
fputs(" : CI 1 ; Color increment of 1 (smallest increment)\n",c);
fputs(" : MC 29 ; Count position and number of colors\n",c);
fputs("Then, by setting the initial color offset into color set 1 \n",c);
fputs("using the command CO, you can select from these ranges:\n",c);
fputs(" ====== ===========================================\n",c);
fputs(" 1-15 unit steps of blue\n",c);
fputs(" 16-30 unit steps of green\n",c);
fputs(" 31-45 unit steps of red\n",c);
fputs(" 46-60 unit steps of sky sky blue (blue and green)\n",c);
fputs(" 61-75 unit steps of purple (blue and red)\n",c);
fputs(" 76-90 unit steps of yellow (red and green)\n",c);
fputs(" 91-115 unit steps of white (all colors)\n",c);
fputs("CM is the command to set the display mode. Add up these:\n",c);
fputs(" o add 1 to get NO HOLD-AND-MODIFY\n",c);
fputs(" o add 2 to get INTERLACE\n",c);
fputs(" o add 4 to get HIRES (640 columns; low-res is 320)\n",c);
fputs("For instance, for HIRES and NO HOLD-AND-MODIFY, add 1 + 4:\n",c);
fputs(" : CM 5\n",c);
break;
case 5:
fputs("The starting (left) and ending (right) edge values for the\n",c);
fputs("axis of the real numbers (the horizontal axis) can be set\n",c);
fputs("using the commands SR (Start Real) and ER (End Real). For\n",c);
fputs("the complex numbers axis (vertical) the start (bottom) and\n",c);
fputs("end (top) edge values are set using SI and EI. Got it?\n",c);
fputs(" The graph that you get with this program's default\n",c);
fputs("values has the real numbers along the horizontal axis. The\n",c);
fputs("leftmost position represents the real number -2.85. The\n",c);
fputs("rightmost position represents 2.85. The complex numbers\n",c);
fputs("are charted along the vertical axis, starting at the bottom\n",c);
fputs("with a value of -2.05 and ranging up to 2.05 at the top.\n",c);
fputs(" You control the range of these axes using the text\n",c);
fputs("commands SR, ER, SI and EI. The commands ZR and ZI let you\n",c);
fputs("zoom in or out on the real and imaginary axes respectively.\n",c);
fputs("ZB lets you zoom on both proportionally.\n",c);
fputs(" Once the display is built, there are ZOOM menu commands\n",c);
fputs("which allow you to zoom in and out automatically. These\n",c);
fputs("are more convenient than using the text commands. On the\n",c);
fputs("other hand, the text commands lend precision.\n",c);
break;
case 6:
fputs("There's lots more to this program than what's described on\n",c);
fputs("these info pages. You should read the available text on\n",c);
fputs("Mandelbrot sets (see info page 1). This program has more \n",c);
fputs("features than what's described here. If you can get your\n",c);
fputs("hands on the source, you're welcome to expand these pages.\n",c);
fputs("In fact, this program is still far from complete. Care to\n",c);
fputs("have a bash at it? We need the greater-precision \n",c);
fputs("floating point. Also, we seriously need to be able to\n",c);
fputs("save some or all of the image to a disk file in IFF format.\n",c);
fputs("\n",c);
fputs("Good luck. Have fun! Send mail (on USENET at least!) if\n",c);
fputs("you find spectacular scenes.\n",c);
break;
default:
fputs("SORRY: there's not that many pages of info available!\n",c);
AvailableCommands();
break;
}
}
AvailableCommands()
{
FILE *c;
c = console;
/* === TRY TO KEEP THIS PAGE 18 LINES TALL AT MOST ======================== */
fputs("AVAILABLE COMMANDS:\n",c);
fputs("SH - Show current settings G - Generate picture\n",c);
fputs("I n - Information pages Q - Quit\n",c);
fputs("\n",c);
fputs("SR n / SI n / ER n / EI n - Starting and ending coords\n",c);
fputs("MX n / MY n / MC n - Maximum x and y resolution and count\n",c);
fputs("XR n / XI n - Displace coord\n",c);
fputs("ZR n / ZI n / ZB n - Zoom around center point\n",c);
fputs("\n",c);
fputs("CM n - Graphics mode F n - Dragon function\n",c);
fputs("CI n - Color increment CD - Color divisor\n",c);
fputs("CO n - Color offset CS - Color set\n",c);
fputs("CT n - Color for points in set P n - Start from Preset\n",c);
fputs("\n",c);
fputs("D - Display picture A - Analyze\n",c);
fputs("SA filename - Save picture L name - Load picture\n",c);
fputs("< filename - Redirect input ; string - Comment\n",c);
fprintf(c,"MM n - Maximum number of %d pixel lines in memory\n",MAXX);
}rj@amiga.UUCP (Robert J. Mical) (01/11/86)
/* ***************************************************************************
* MAND4.C - Information
* Mandelbrot Self-Squared Dragon Generator
* For the Commodore Amiga
* Version 2.01
*
* Copyright (C) 1986, =Robert J. Mical=
* Placed in the Public Domain
*
*
* This program may be distributed free of charge as long as the above
* notice is retained.
*
************************************************************************** */
/* === IMPORTANT NOTE: =================================================
* If you are going to design Information pages, make sure that all
* lines are a maximum of 59 characters long. Also, make sure that
* there are 19 lines at most per page. These two restrictions
* are to allow info pages to fit on low-res fat font screens.
* These two restrictions combined comprise the reason why the info
* pages are (and should remain) terse.
* ===================================================================== */
#include "mand.h"
extern SHORT Color0, Color1, Color2;
extern SHORT UserPalette[29];
extern FILE *console;
extern float cnvf();
extern union kludge {
float f;
int i;
} start_r,end_r,start_i,end_i; /* Block bounds for set */
extern int max_x,max_y,max_mem_y; /* Graphics window size */
extern int max_count,color_inc,color_offset,color_set,color_mode,color_div;
extern int color_inset,func_num;
extern int v_starty,max_mem;
extern long v_offset;
extern UWORD *color_table,*v_mand_store;
Information(page)
SHORT page;
{
FILE *c;
c = console;
switch (page) {
case 0:
case 1:
fprintf(c, "Mandelbrot Self-Squared Dragon Generator Version %s\n", VERSION);
fputs("Copyright (C) 1985 - Robert S. French\n",c);
fputs("Vastly Enhanced (with Intuition!) by =RJ Mical= 1985/86\n",c);
fputs("Copyright (C) 1986 - =Robert J. Mical= -\n",c);
fputs("Placed in the public domain ... Please read and learn!\n",c);
fputs("\n",c);
fputs("Inspired by Scientific American, August/1985\n",c);
fputs("Corrections and improvements suggested by\n",c);
fputs("\"The Fractal Geometry of Nature\"\n",c);
fputs("By Benoit Mandelbrot, W.H. Freeman and Company, 1983\n",c);
fputs("(Used to be Z=Z^2+C, now is Z=Z^2-u, etc.)\n",c);
fputs("\n",c);
fputs("Robert S. French may be contacted at:\n",c);
fputs(" USPS: 2740 Frankfort Avenue\n",c);
fputs(" Louisville, Ky 40206\n",c);
fputs(" Phone: (502) 897-5096 ARPA: French#Robert%d@LLL-MFE\n",c);
fputs("=RJ Mical= may be contacted at:\n",c);
fputs(" Commodore-Amiga, Inc.\n",c);
fputs(" 983 University Avenue\n",c);
fputs(" Los Gatos, CA 95030\n",c);
break;
case 2:
fputs("The four basic commands of this program are:\n",c);
fputs("G - Generate picture\n",c);
fputs(" When this command is entered the Mandelbrot set is drawn\n",c);
fputs(" according to the current settings. When you first run\n",c);
fputs(" this program, you can say \"G\" immediately and see \n",c);
fputs(" the entire Mandelbrot set.\n",c);
fputs("\n",c);
fputs("SH - Show current settings\n",c);
fputs(" When you enter the command \"SH\", the current settings of\n",c);
fputs(" all of the important variables are shown. To reproduce\n",c);
fputs(" a picture, you should copy these values down so you or\n",c);
fputs(" anyone else can re-enter the values and re-generate\n",c);
fputs(" the picture.\n",c);
fputs("\n",c);
fputs("I n - Information pages\n",c);
fputs(" Shows page n of the information pages.\n",c);
fputs("\n",c);
fputs("Q - Quit\n",c);
fputs(" Lets you exit back to the Workbench or CLI.\n",c);
break;
case 3:
fputs("The Mandelbrot set consists of pairs of numbers, one number\n",c);
fputs("real and the other complex. This set can be graphed using\n",c);
fputs("one axis for the real numbers and the other for the complex\n",c);
fputs("numbers. The Mandelbrot set is located on a graph roughly\n",c);
fputs("centered over the origin (0,0). The default settings of\n",c);
fputs("this program create a display that shows the entire set.\n",c);
fputs("All of the black display pixels represent Mandelbrot pairs.\n",c);
fputs("The shaded pixels show the pairs that are *almost* in the\n",c);
fputs("set. The pairs nearest the set on the display just miss\n",c);
fputs("making it into the set numerically; these are white. The\n",c);
fputs("more grey a position, the further the pair is from the set.\n",c);
fputs(" This program lets you explore the Mandelbrot set by\n",c);
fputs("panning across and zooming in to look at details of the set.\n",c);
fputs("You can also change colors and display mode. For instance:\n",c);
fputs(" : CS 1 ; Use the fancy arrangements of color set 1\n",c);
fputs(" : CO 29 ; Set the initial color offset\n",c);
fputs(" : CI 4 ; Set the color increment\n",c);
fputs(" : MC 29 ; Set the maximum tests count\n",c);
fputs(" : G ; Generate the picture\n",c);
break;
case 4:
fputs("The MC command lets you specify how many times each position\n",c);
fputs("is tested to see whether or not it's in the Mandelbrot set.\n",c);
fputs("A low MC value means that very few tests will be done on\n",c);
fputs("position, which will cause the display to be created more\n",c);
fputs("quickly, but which will also have a cruder approximation of\n",c);
fputs("the Mandelbrot set and, consequently, fewer colors.\n",c);
fputs("\n",c);
fputs("The MX and MY commands set the size of the display window.\n",c);
fputs("The larger your window, the longer it takes for the picture\n",c);
fputs("to be resolved. While you're experimenting with the\n",c);
fputs("program, you should create a smaller window with a lower\n",c);
fputs("count value until you get approximately the picture that you\n",c);
fputs("want to see. Then when you've gotten a picture you want to\n",c);
fputs("see in large scale, increase the size and count resolution\n",c);
fputs("to see the detailed version of your picture. For instance:\n",c);
fputs(" : MC 8 ; Each position will be tested only 8 times\n",c);
fputs(" : MX 80 ; The width is 25% of full width\n",c);
fputs(" : MY 50 ; The height is 25% of full height\n",c);
fputs(" : G ; Generate the picture\n",c);
break;
case 5:
fputs(" : CS 1 ; Color set 1 (special ranges of colors)\n",c);
fputs(" : CI 1 ; Color increment of 1 (smallest increment)\n",c);
fputs(" : MC 29 ; Count position and number of colors\n",c);
fputs("Then, by setting the initial color offset into color set 1 \n",c);
fputs("using the command CO, you can select from these ranges:\n",c);
fputs(" ====== ===========================================\n",c);
fputs(" 1-15 unit steps of blue\n",c);
fputs(" 16-30 unit steps of green\n",c);
fputs(" 31-45 unit steps of red\n",c);
fputs(" 46-60 unit steps of sky sky blue (blue and green)\n",c);
fputs(" 61-75 unit steps of purple (blue and red)\n",c);
fputs(" 76-90 unit steps of yellow (red and green)\n",c);
fputs(" 91-115 unit steps of white (all colors)\n",c);
fputs("CM is the command to set the display mode. Add up these:\n",c);
fputs(" o add 1 to get NO HOLD-AND-MODIFY\n",c);
fputs(" o add 2 to get INTERLACE\n",c);
fputs(" o add 4 to get HIRES (640 columns; low-res is 320)\n",c);
fputs("For instance, for HIRES and NO HOLD-AND-MODIFY, add 1 + 4:\n",c);
fputs(" : CM 5\n",c);
break;
case 6:
fputs("The starting (left) and ending (right) edge values for the\n",c);
fputs("axis of the real numbers (the horizontal axis) can be set\n",c);
fputs("using the commands SR (Start Real) and ER (End Real). For\n",c);
fputs("the complex numbers axis (vertical) the start (bottom) and\n",c);
fputs("end (top) edge values are set using SI and EI. Got it?\n",c);
fputs(" The graph that you get with this program's default\n",c);
fputs("values has the real numbers along the horizontal axis. The\n",c);
fputs("leftmost position represents the real number -2.85. The\n",c);
fputs("rightmost position represents 2.85. The complex numbers\n",c);
fputs("are charted along the vertical axis, starting at the bottom\n",c);
fputs("with a value of -2.05 and ranging up to 2.05 at the top.\n",c);
fputs(" You control the range of these axes using the text\n",c);
fputs("commands SR, ER, SI and EI. The commands ZR and ZI let you\n",c);
fputs("zoom in or out on the real and imaginary axes respectively.\n",c);
fputs("ZB lets you zoom on both proportionally.\n",c);
fputs(" Once the display is built, there are ZOOM menu commands\n",c);
fputs("which allow you to zoom in and out automatically. These\n",c);
fputs("are more convenient than using the text commands. On the\n",c);
fputs("other hand, the text commands lend precision.\n",c);
break;
case 7:
fputs("OK! Now there's plenty of new features, especially being\n", c);
fputs("able to change the colors and save pictures to the disk.\n", c);
fputs("I hope you find this newest version more useable. -=RJM=-\n", c);
fputs("\n", c);
fputs("There's lots more to this program than what's described on\n",c);
fputs("these info pages. You should read the available text on\n",c);
fputs("Mandelbrot sets (see info page 1). This program has more \n",c);
fputs("features than what's described here. If you can get your\n",c);
fputs("hands on the source, you're welcome to expand these pages.\n",c);
fputs("In fact, this program is still far from complete. Care to\n",c);
fputs("have a bash at it? We need the greater-precision \n",c);
fputs("floating point. Also, we seriously need to be able to\n",c);
fputs("save some or all of the image to a disk file in IFF format.\n",c);
fputs("\n",c);
fputs("Good luck. Have fun! Send mail (on USENET at least!) if\n",c);
fputs("you find spectacular scenes.\n",c);
break;
default:
fputs("SORRY: there's not that many pages of info available!\n",c);
AvailableCommands();
break;
}
}
AvailableCommands()
{
FILE *c;
c = console;
/* === TRY TO KEEP THIS PAGE 18 LINES TALL AT MOST ======================== */
fputs("AVAILABLE COMMANDS:\n",c);
fputs("SH - Show current settings G - Generate picture\n",c);
fputs("I n - Information pages Q - Quit\n",c);
fputs("\n",c);
fputs("SR n / SI n / ER n / EI n - Starting and ending coords\n",c);
fputs("MX n / MY n - x/y display size MC n - Max exam count\n",c);
fputs("XR n / XI n - Move to new coordinates\n",c);
fputs("ZR n / ZI n / ZB n - Zoom around the center point\n",c);
fputs("\n",c);
fputs("CM n - Graphics mode F n - Dragon function\n",c);
fputs("CI n - Color increment CD - Color divisor\n",c);
fputs("CO n - Color offset CS - Color set\n",c);
fputs("CT n - Color for points in set P n - Start from Preset\n",c);
fputs("\n",c);
fputs("D - Display picture A - Analyze\n",c);
fputs("SA filename - Save set data L name - Load set data\n",c);
fputs("< filename - Redirect input ; string - Comment\n",c);
fprintf(c,"MM n - Maximum number of %d pixel lines in memory\n",MAXX);
}
CurrentSettings()
{
SHORT i, c;
fprintf(console, " Description Command Current Value\n");
fprintf(console, "======================== ======= =============\n");
fprintf(console, " Start Real (Left) SR n: %f\n", cnvf(start_r.i));
fprintf(console, " End Real (Right) ER n: %f\n", cnvf(end_r.i));
fprintf(console, "Start Imaginary (Bottom) SI n: %f\n", cnvf(start_i.i));
fprintf(console, " End Imaginary (Top) EI n: %f\n", cnvf(end_i.i));
fputs("\n", console);
fprintf(console, " Function Number F n: %d\n", func_num);
fprintf(console, " Max Examination Count MC n: %d\n", max_count);
fprintf(console, " Color Set CS n: %d\n", color_set);
if (color_set < 2)
{
fprintf(console, " Color Increment CI n: %d\n", color_inc);
fprintf(console, " Color Offset CO n: %d\n", color_offset);
}
else
for (i = 0; i < 32; i++)
{
if ((i % 6) == 0) fputs("Color ", console);
switch (i)
{
case 0: c = Color0; break;
case 1: c = Color1; break;
case 2: c = Color2; break;
default: c = UserPalette[i - 3]; break;
}
fprintf(console, "%d=%d,%d,%d ", i, (c>>8) & 0xF, (c>>4) & 0xF, c & 0xF);
if ((i % 6) == 5) fputs("\n", console);
}
fputs("\n", console);
fprintf(console, " Color Mode CM n: %d\n", color_mode);
fprintf(console, " Color Divisor CD n: %d\n", color_div);
fprintf(console, " Display Width/Height MX/Y n: %d %d\n", max_x, max_y);
}