mp2i-vms.fr
585 lines
20 KiB
OCaml
585 lines
20 KiB
OCaml
(*open Spectrum*)
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let rec print_mat m =
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for i = 0 to (Array.length m)-1 do
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print_char ' ';
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for j = 0 to (Array.length m.(i))-1 do
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if m.(i).(j) <> -1 then
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print_int m.(i).(j)
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else
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print_char '_';
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print_char ' ';
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print_char '|';
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print_char ' ';
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done;
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print_char '\n';
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for j = 0 to (Array.length m.(i))-1 do
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print_char '-';
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print_char '-';
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print_char '-';
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print_char '+';
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done;
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print_char '\n';
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done ;;
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exception ReturnBool of bool ;;
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let pi = 3.14159265358979343 ;;
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let abs x =
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if x >= 0 then x else -x ;;
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let absf x =
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if x >= 0. then x else -1. *. x ;;
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let is_rempaceable c arr =
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try
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for i = 0 to (Array.length arr - 1) do
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if c = arr.(i) then
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raise (ReturnBool true)
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else
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()
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done;
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raise (ReturnBool false)
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with
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| ReturnBool b -> b ;;
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let draw_line_bresenham mat cls origin x1 y1 x2 y2 cutoff =
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let slope = ref 0. in
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let override_arr = [|' '; '.'; '|'; '-'|] in
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if x2 <> x1 || y2 <> y1 then
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slope := (float_of_int (y2 - y1) /. float_of_int (x2 - x1))
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else
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();
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(*Printf.printf "(%f)\n" !slope;*)
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if absf (!slope) < 1. then
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if x1 < x2 then
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for k = x1 to x2 do
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let cur_y = ref ((!slope) *. float_of_int (k - x1) +. float_of_int y1) in
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if !slope = 0. then cur_y := float_of_int y2 else ();
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if is_rempaceable mat.(k).(int_of_float (!cur_y)) override_arr then begin
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if x2 - k <= cutoff || k mod 2 = 0 || cls.(k).(int_of_float (!cur_y)) = 0 then
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cls.(k).(int_of_float (!cur_y)) <- origin+1
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else
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();
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if x2 - k > cutoff then
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mat.(k).(int_of_float (!cur_y)) <- '|'
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else
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mat.(k).(int_of_float (!cur_y)) <- 'v'
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end
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else
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()
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done
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else
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for k = x1 downto x2 do
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let cur_y = ref ((!slope) *. float_of_int (k - x1) +. float_of_int y1) in
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if !slope = 0. then cur_y := float_of_int y2 else ();
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if is_rempaceable mat.(k).(int_of_float (!cur_y)) override_arr then begin
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if k - x2 <= cutoff || k mod 2 = 0 || cls.(k).(int_of_float (!cur_y)) = 0 then
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cls.(k).(int_of_float (!cur_y)) <- origin+1
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else
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();
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if k - x2 > cutoff then
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mat.(k).(int_of_float (!cur_y)) <- '|'
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else
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mat.(k).(int_of_float (!cur_y)) <- '^'
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end
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else
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()
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done
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else
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if y1 < y2 then
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for l = y1 to y2 do
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let cur_x = ref (float_of_int x2) in
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if (!slope) <> 1.0 /. 0.0 && (!slope) <> (-. 1.) /. 0. then
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cur_x := ((float_of_int l) +. ((!slope) *. (float_of_int x1) -. (float_of_int y1))) /. (!slope)
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else
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();
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if is_rempaceable mat.(int_of_float (!cur_x)).(l) override_arr then begin
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if y2 - l <= cutoff || l mod 2 = 0 || cls.(int_of_float (!cur_x)).(l) = 0 then
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cls.(int_of_float (!cur_x)).(l) <- origin+1
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else
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();
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if y2 - l > cutoff then
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mat.(int_of_float (!cur_x)).(l) <- '-'
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else
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mat.(int_of_float (!cur_x)).(l) <- '>'
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end
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else
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()
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done
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else
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for l = y1 downto y2 do
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let cur_x = ref (float_of_int x2) in
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if (!slope) <> 1.0 /. 0.0 && (!slope) <> (-. 1.) /. 0. then
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cur_x := ((float_of_int l) +. ((!slope) *. (float_of_int x1) -. (float_of_int y1))) /. (!slope)
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else
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();
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if is_rempaceable mat.(int_of_float (!cur_x)).(l) override_arr then begin
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if l - y2 <= cutoff || l mod 2 = 0 || cls.(int_of_float (!cur_x)).(l) = 0 then
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cls.(int_of_float (!cur_x)).(l) <- origin+1
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else
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();
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if l - y2 > cutoff then
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mat.(int_of_float (!cur_x)).(l) <- '-'
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else
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mat.(int_of_float (!cur_x)).(l) <- '<'
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end
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else
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()
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done;;
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let display mat cls =
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let colors = [|"\027[0m"; "\027[41m"; "\027[42m"; "\027[43m"; "\027[44m"; "\027[45m"; "\027[46m"; "\027[47m"; "\027[100m"; "\027[101m"; "\027[102m"; "\027[103m"; "\027[104m"; "\027[105m"; "\027[106m"; "\027[107m"|] in
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for i = 0 to (Array.length mat -1) do
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for j = 0 to (Array.length mat.(i) -1) do
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if cls.(i).(j) = 0 then
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print_string colors.(0)
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else
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print_string colors.(max 1 (cls.(i).(j) mod (Array.length colors)));
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if mat.(i).(j) = '&' then
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print_char ' '
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else
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print_char mat.(i).(j)
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done;
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print_string "\027[0m";
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print_char '\n'
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done;;
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let display_specific mat cls digit =
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let colors = [|"\027[0m"; "\027[41m"; "\027[42m"; "\027[43m"; "\027[44m"; "\027[45m"; "\027[46m"; "\027[47m"; "\027[100m"; "\027[101m"; "\027[102m"; "\027[103m"; "\027[104m"; "\027[105m"; "\027[106m"; "\027[107m"|] in
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for i = 0 to (Array.length mat -1) do
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for j = 0 to (Array.length mat.(i) -1) do
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if cls.(i).(j) <> digit then
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print_string colors.(0)
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else
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print_string colors.(max 1 (cls.(i).(j) mod (Array.length colors)));
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if mat.(i).(j) = '&' then
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print_char ' '
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else
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print_char mat.(i).(j)
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done;
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print_string "\027[0m";
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print_char '\n'
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done;;
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let extend dgt mat cls i0 j0 dst =
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let ni = Array.length mat in
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let nj = Array.length mat.(0) in
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cls.(i0).(j0) <- dgt + 1;
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for i = -dst to dst do
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for j = -dst to dst do
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if i0 - i >= 0 && j0 - j >= 0 && i0 - i < ni && j0 - j < nj then begin
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cls.(i0-i).(j0-j) <- dgt + 1;
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if abs i = dst || abs j = dst then
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mat.(i0-i).(j0-j) <- '*'
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else if i <> 0 || j <> 0 then
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mat.(i0-i).(j0-j) <- '&'
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else
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()
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end
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else
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()
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done
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done ;;
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let identity x = x ;;
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let copy_arr src =
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let dest = Array.make (Array.length src) [||] in
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for i = 0 to (Array.length src -1) do
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dest.(i) <- Array.make (Array.length src.(i)) src.(0).(0);
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for j = 0 to (Array.length src.(i) -1) do
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dest.(i).(j) <- src.(i).(j)
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done
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done;
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dest ;;
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let rec pw x n = match n with
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| 0 -> 1
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| 1 -> x
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| k -> x * pw x (n-1) ;;
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let to_hexa n =
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let res = ref "" in
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let remaining = ref n in
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if n = 0 then
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"0"
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else begin
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while !remaining > 0 do
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let cd = ref (48 + !remaining mod 16) in
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if !cd >= 58 then
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cd := !cd + 7
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else
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();
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res := ((String.make 1 (Char.chr !cd)) ^ !res);
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remaining := !remaining / 16;
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done;
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!res ;
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end;;
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let extremely_fancy_graph_printing g size wmult mode =
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(* creation of the image *)
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let px = Array.make (size) [||] in
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for i = 0 to (size-1) do
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px.(i) <- Array.make (wmult*size) ' '
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done;
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(* color matrix *)
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let cls = Array.make (size) [||] in
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for i = 0 to (size-1) do
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cls.(i) <- Array.make (wmult*size) 0
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done;
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if Array.length g >= 100 then
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failwith "ERROR : graph is too big"
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else
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();
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let coords = Array.make size (0, 0) in
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(* placing the points on the trig circle *)
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for k = 0 to Array.length g - 1 do
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let theta = 2. *. pi *. (float_of_int k) /. (float_of_int (Array.length g)) +. pi /. (float_of_int (Array.length g)) in
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let i = ref (int_of_float ((float_of_int size) /. 2.) + int_of_float ((float_of_int size) /. 2. *. cos theta)) in
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let j = ref (int_of_float ((float_of_int size) /. 2.) + int_of_float ((float_of_int size) /. 2. *. sin theta)) in
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if !i < 1 then i := 1 else ();
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if !j < 1 then j := 1 else ();
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if !i >= size-1 then i := size-1-1 else ();
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if !j >= size-1 then j := size-1-1 else ();
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px.(!i).(wmult* !j) <- '~';
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extend k px cls !i (wmult* !j) 2;
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let str_to_place = to_hexa k in
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for sl = 0 to (String.length str_to_place -1) do
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if !i + 1 < size && wmult* !j-sl-1 >= 0 && wmult* !j+sl-1 < Array.length px.(0) then
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px.(!i + 1).(wmult* !j-sl-1) <- str_to_place.[sl]
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else
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()
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done;
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coords.(k) <- (!i, wmult* !j);
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done;
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let blankcls = copy_arr cls in
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let bpx = copy_arr px in
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(* draw the connections *)
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for i = 0 to Array.length g -1 do
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for j = 0 to Array.length g.(i) -1 do
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draw_line_bresenham px cls i (fst coords.(i)) (snd coords.(i)) (fst coords.(g.(i).(j))) (snd coords.(g.(i).(j))) 0
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done
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done;
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(* show the image *)
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ignore (Sys.command "clear");
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if mode = "SPECIFIC" then begin
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let halt = ref false in
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while !halt = false do
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Stdlib.print_endline "Enter the node you want to highlight (type -1 to show all; -2 to exit; -3 to stream all)";
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let nd = ref (-2) in
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nd := Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity;
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ignore (Sys.command "clear");
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if !nd >= 0 && !nd < Array.length g then
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display_specific px cls (!nd+1)
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else if !nd = -1 then
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display px cls
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else if !nd = -2 then
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halt := true
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else if !nd = -3 then begin
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for i = 0 to (Array.length g -1) do
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ignore (Sys.command "clear");
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display_specific px cls (i+1);
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Stdlib.print_endline "_";
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ignore (Sys.command "sleep 1");
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done;
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display px cls;
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Stdlib.print_endline "_";
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ignore (Sys.command "sleep 1");
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end
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else
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()
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done
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end
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else if mode <> "HIDE" then
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display px cls;
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(coords, px, bpx, cls, blankcls) ;;
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(* coords = (x, y) coords of graph point *)
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(* px = 2D matrix containing what to display *)
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(* cls = colors of associated pixel *)
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let fancy_dfs gr coords px bcls =
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Stdlib.print_endline "Enter any integer to begin DFS : ";
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ignore (Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity);
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let n = Array.length gr in
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let visited = Array.make n false in
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visited.(0) <- true;
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let rec explore nd =
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if true then begin
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for i = 0 to (Array.length gr.(nd) -1) do
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draw_line_bresenham px bcls nd (fst coords.(nd)) (snd coords.(nd)) (fst coords.(gr.(nd).(i))) (snd coords.(gr.(nd).(i))) 4;
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display px bcls;
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Stdlib.print_endline "_";
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ignore (Sys.command "sleep 1");
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if visited.(gr.(nd).(i)) = false then begin
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visited.(gr.(nd).(i)) <- true;
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explore gr.(nd).(i);
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end
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done
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end
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else
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()
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in
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explore 0;
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display px bcls ;;
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(* --------------------------------------| TESTS |-------------------------------------- *)
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(*
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let gr = [|[|3; 5; 7|]; [|0|]; [|1; 7; 8|]; [|2; 6|]; [|0; 1; 3|]; [|6; 7|]; [|0; 1; 2|]; [|8|]; [|0; 7; 6|]; [||]; [||]; [|9|]|] ;;
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let (coords, map, blank_map, color_map, blank_color_map) = extremely_fancy_graph_printing gr 46 3 "SHOW" ;;
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fancy_dfs gr coords map blank_color_map ;;
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*)
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(* --------------------------------------------------------------------------------------------------------- *)
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(* --------------------------------------------------------------------------------------------------------- *)
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(* --------------------------------------------------------------------------------------------------------- *)
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(* --------------------------------------------------------------------------------------------------------- *)
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open Graphics ;;
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type 'a tree = Empty | Leaf of 'a | Node of 'a * 'a tree * 'a tree ;;
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(*
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STRUCT : (digit, xcoord, ycoord)
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*)
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let rec pw x n = match n with
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| 0 -> 1
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| 1 -> x
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| k when k mod 2 = 0 -> let res = pw x (n/2) in res*res
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| k -> let res = pw x (n/2) in res*res*x ;;
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let rec depth_of_tree t = match t with
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| Leaf _ -> 1
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| Node (_, g, d) -> 1 + max (depth_of_tree g) (depth_of_tree d)
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| Empty -> 0;;
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let fill_data te ystep sx sy r =
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let depth = depth_of_tree te in
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let res = Array.make (depth+1) [] in
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let rec aux t cur_x cur_d spacing pcx pcy = match t with
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| Node (x, g, d) -> begin
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aux g (cur_x - spacing) (cur_d+1) (spacing/2) cur_x (sy - r - 20 - ystep * cur_d);
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res.(cur_d) <- (((x, (pcx, pcy)), (cur_x, sy - r - 20 - ystep * cur_d)))::(res.(cur_d));
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aux d (cur_x + spacing) (cur_d+1) (spacing/2) cur_x (sy - r - 20 - ystep * cur_d);
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end
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| Leaf x -> begin
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res.(cur_d) <- (((x, (pcx, pcy)), (cur_x, sy - r - ystep * cur_d)))::(res.(cur_d));
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end
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| Empty -> ()
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in aux te (sx/2) 0 (r/2 + r * ((pw 2 (depth-1)) - 1)) (-1) (-1); res ;;
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let rec ln10 n = match n with
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| k when k < 0 -> failwith "Are you sure about that ?"
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| k when k < 10 -> 0
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| k -> 1 + ln10 (k/10) ;;
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let delta i j =
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if i = j then 1 else 0 ;;
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let draw_integer x0 y n0 r =
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(* 7-seg display *)
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let n = ref n0 in
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let size = ln10 n0 in
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let len = r/3 in
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let offset = size*(len/2) in
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for i = 0 to size do
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let x = -(1 - delta size 0)*4 + x0 - offset + i * (len+8) in
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if Array.mem (!n mod 10) [|0; 4; 5; 6; 7; 8; 9|] then
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draw_poly_line [|(x-len/2, y+len); (x-len/2, y)|];
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if Array.mem (!n mod 10) [|0; 2; 3; 5; 6; 7; 8; 9|] then
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draw_poly_line [|(x-len/2, y+len); (x+len/2, y+len)|];
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if Array.mem (!n mod 10) [|0; 1; 2; 3; 4; 7; 8; 9|] then
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draw_poly_line [|(x+len/2, y+len); (x+len/2, y)|];
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if Array.mem (!n mod 10) [|2; 3; 4; 5; 6; 8; 9|] then
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draw_poly_line [|(x-len/2, y); (x+len/2, y)|];
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if Array.mem (!n mod 10) [|0; 1; 3; 4; 5; 6; 7; 8; 9|] then
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draw_poly_line [|(x+len/2, y-len); (x+len/2, y)|];
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if Array.mem (!n mod 10) [|0; 2; 3; 5; 6; 8; 9|] then
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draw_poly_line [|(x-len/2, y-len); (x+len/2, y-len)|];
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if Array.mem (!n mod 10) [|0; 2; 6; 8|] then
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draw_poly_line [|(x-len/2, y-len); (x-len/2, y)|];
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n := !n/10;
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done ;;
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let rec draw_list l d r = match l with
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| [] -> ()
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| h::t -> begin
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set_color (rgb 192 192 192);
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fill_circle (fst (snd h)) (snd (snd h)) r;
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set_color black;
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draw_circle (fst (snd h)) (snd (snd h)) r;
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moveto (fst (snd h)) (snd (snd h));
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set_color (rgb 32 192 32);
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draw_integer (fst (snd h)) (snd (snd h)) (fst (fst h)) r;
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draw_list t d r
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end;;
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let connect l0 =
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let rec aux l = match l with
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| [] -> ()
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| ((_, (xf, yf)), (x, y))::t ->
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if xf >= 0 && yf >= 0 then begin
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set_color (rgb 192 192 192);
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draw_poly_line [|(xf, yf); (x, y)|];
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aux t
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end
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in aux l0 ;;
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let even_more_pretty_printing t r ystep skip =
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|
|
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let sx = Graphics.size_x () in
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let sy = Graphics.size_y () in
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|
|
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let graphdata = fill_data t ystep sx sy (6*r/10) in
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(* graphdata is a ((int * (int * int)) * (int * int)) list array *)
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(* <==> ((value, (parent_x, parent_y)), (this_x, this_y)) *)
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if skip = false then begin
|
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set_color (rgb 192 192 192);
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set_line_width 15 ;
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for dpth = 1 to (Array.length graphdata -1) do
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connect graphdata.(dpth-1);
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done;
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|
|
|
set_line_width 5 ;
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|
for dpth = 0 to (Array.length graphdata -1) do
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|
draw_list graphdata.(dpth) dpth r
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|
done;
|
|
|
|
let halt = ref false in
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|
while !halt = false do
|
|
Unix.sleepf 0.1 ;
|
|
Unix.sleepf 2.0 ;
|
|
halt := true;
|
|
done;
|
|
end;
|
|
graphdata ;;
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|
|
|
|
|
let generate_full_graph d =
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|
let rec aux n = match n with
|
|
| 0 -> Leaf (Random.int 99)
|
|
| k -> begin
|
|
Node (Random.int 99, aux (n-1), aux (n-1))
|
|
end
|
|
in aux d ;;
|
|
|
|
let rec nth l n = match l with
|
|
| [] -> failwith "Out of range"
|
|
| h::t when n = 0 -> h
|
|
| h::t -> nth t (n-1) ;;
|
|
|
|
let even_more_fancy_dfs_prefixe t graphdata r tts rfound gfound bfound rmark gmark bmark =
|
|
let rec aux tr dpth os =
|
|
match tr with
|
|
| Empty -> ()
|
|
| Leaf _ -> begin
|
|
let data = nth graphdata.(dpth) os in
|
|
set_color (rgb rfound gfound bfound);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
Unix.sleepf tts;
|
|
set_color (rgb rmark gmark bmark);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
end
|
|
| Node (_, g, d) -> begin
|
|
let data = nth graphdata.(dpth) os in
|
|
set_color (rgb rfound gfound bfound);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
Unix.sleepf tts;
|
|
set_color (rgb rmark gmark bmark);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
|
|
aux g (dpth+1) (2*os);
|
|
aux g (dpth+1) (2*os + 1);
|
|
end
|
|
in aux t 0 0 ;;
|
|
|
|
|
|
let even_more_fancy_dfs_infixe t graphdata r tts rfound gfound bfound rmark gmark bmark =
|
|
let rec aux tr dpth os =
|
|
match tr with
|
|
| Empty -> ()
|
|
| Leaf _ -> begin
|
|
let data = nth graphdata.(dpth) os in
|
|
set_color (rgb rfound gfound bfound);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
Unix.sleepf tts;
|
|
set_color (rgb rmark gmark bmark);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
end
|
|
| Node (_, g, d) -> begin
|
|
aux g (dpth+1) (2*os);
|
|
|
|
let data = nth graphdata.(dpth) os in
|
|
set_color (rgb rfound gfound bfound);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
Unix.sleepf tts;
|
|
set_color (rgb rmark gmark bmark);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
aux g (dpth+1) (2*os + 1);
|
|
end
|
|
in aux t 0 0 ;;
|
|
|
|
|
|
let even_more_fancy_dfs_postfixe t graphdata r tts rfound gfound bfound rmark gmark bmark =
|
|
let rec aux tr dpth os =
|
|
match tr with
|
|
| Empty -> ()
|
|
| Leaf _ -> begin
|
|
let data = nth graphdata.(dpth) os in
|
|
set_color (rgb rfound gfound bfound);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
Unix.sleepf tts;
|
|
set_color (rgb rmark gmark bmark);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
end
|
|
| Node (_, g, d) -> begin
|
|
aux g (dpth+1) (2*os);
|
|
aux g (dpth+1) (2*os + 1);
|
|
|
|
let data = nth graphdata.(dpth) os in
|
|
set_color (rgb rfound gfound bfound);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
Unix.sleepf tts;
|
|
set_color (rgb rmark gmark bmark);
|
|
draw_circle (fst (snd data)) (snd (snd data)) r;
|
|
end
|
|
in aux t 0 0 ;;
|
|
|
|
(* --------------------------------------| TESTS |-------------------------------------- *)
|
|
Random.self_init ;;
|
|
|
|
open_graph " 1800x800" ;;
|
|
set_window_title "Trees" ;;
|
|
|
|
let gdata = even_more_pretty_printing (generate_full_graph 4) 40 150 false ;;
|
|
|
|
even_more_fancy_dfs_prefixe (generate_full_graph 4) gdata 40 0.2 255 255 32 32 32 255 ;;
|
|
|
|
close_graph () ;;
|
|
|
|
(* compilation command : ocamlfind ocamlc -linkpkg -package unix -linkpkg -package graphics pretty_printing.ml *)
|
|
print_int 0 ;;
|
|
print_char '\n' ;; |