correction bugs + cration GIF animé

2021-01-08 18:23:03 +01:00 · 2021-01-08 18:23:03 +01:00 · 2f5a2cc61d
commit 2f5a2cc61d
parent 4028ac2440
13 changed files with 685 additions and 592 deletions
--- a/README.md
+++ b/README.md
@ -296,7 +296,7 @@ Exemple 1
 	+-------+-------+-------+
 	--
-Et voici l'image produite qui montre un arbre filiforme (signe que le sudoku est facile). La grille initiale  est marquée en rouge en haut, et l'unique solution est marquée en vert en bas. Le premier nœud accessible depuis le nœud rouge de départ porte la mention `('7', 0, 6)`. Cela signifie que lors de la résolution, la première case remplie a été celle de coordonnée (0, 6) (première ligne, septième colonne) et qu'on y a placé le chiffre 7. 
+Et voici l'image produite qui montre un arbre filiforme (signe que le sudoku est facile). La grille initiale  est marquée en rouge en haut, et l'unique solution est marquée en vert en bas. Le premier nœud accessible depuis le nœud rouge de départ porte la mention `('7', 6, 0)`. Cela signifie que lors de la résolution, la première case remplie a été celle de coordonnée (6, 0) (septième colonne, première ligne) et qu'on y a placé le chiffre 7. 
 ![arbre de résolution de l'exemple 1](images/arbre_exple1.png)
@ -427,3 +427,10 @@ produit l'ouverture d'une fenêtre montrant l'image
 ![coloriage de la grille de l'exemple 1](images/mondrian_exple1.png)
 et un fichier nommé `mondrian_exple1.png` dans le dossier `images`.
 #### Création d'un GIF animé
    $ ./main7.py 906028003040500001080900040600000070008206900030000005050003060100002080200870500 images/mondrian_exple1_resolution
 ![resolution animée de la grille de l'exemple 1](images/mondrian_exple1_reolution.gif)
--- a/images/arbre_exple1.dot
+++ b/images/arbre_exple1.dot
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--- a/images/arbre_exple1.png
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--- a/images/arbre_exple2.png
+++ b/images/arbre_exple2.png
--- a/images/mondrian_exple1.png
+++ b/images/mondrian_exple1.png
--- a/images/mondrian_exple1_resolution.gif
+++ b/images/mondrian_exple1_resolution.gif
--- a/images/sudokufiendish.dot
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 }
--- a/images/sudokufiendish.png
+++ b/images/sudokufiendish.png
--- a/main7.py
+++ b/main7.py
@ -0,0 +1,71 @@
 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
 """
 :mod: module
 :author: `Éric W`
 :date: 2021, january
 Create an animated GIF to show the resolution of a Sudoku grid.
 """
 GRID='''
   +-------+-------+-------+
   | 9 . 6 | . 2 8 | . . 3 |
   | . 4 . | 5 . . | . . 1 |
   | . 8 . | 9 . . | . 4 . |
   +-------+-------+-------+
   | 6 . . | . . . | . 7 . |
   | . . 8 | 2 . 6 | 9 . . |
   | . 3 . | . . . | . . 5 |
   +-------+-------+-------+
   | . 5 . | . . 3 | . 6 . |
   | 1 . . | . . 2 | . 8 . |
   | 2 . . | 8 7 . | 5 . . |
   +-------+-------+-------+
 '''
 def usage():
    print('Usage: {:s} <grid> <filename>'.format(sys.argv[0]))
    print('where\n\t<grid> is a 81 characters string describing a valid sudoku grid')
    print('\t<filename> is the basename of the animated GIF to create')
    print('\nExample: with the grid')
    print(GRID)
    print('$ {:s} 906028003040500001080900040600000070008206900030000005050003060100002080200870500 images/mondrian_exple1_resolution'.format(sys.argv[0]))
    exit(1)
 if __name__ == '__main__':
    import sys, os
    import sudoku_grid, sudoku_solver, sudoku_mondrian
    if len(sys.argv) != 3:
        usage()
    else:
        strgrid = sys.argv[1]
        try:
            grid = sudoku_grid.SudokuGrid(strgrid)
        except sudoku_grid.SudokuGridError:
            print('grid description is not valid')
            usage()
        filename = sys.argv[2]
        print('Sudoku to solve')
        grid.pretty_print()
        _ = input('Tapez entrée pour continuer')
        with open(filename, 'wt') as sortie:
            sols = sudoku_solver.solve_one(grid, pause=0, out_channel=sortie)
        print('Résolution terminée.')
        print('Création des images.')
        with open(filename, 'rt') as entree:
            images = list(sudoku_mondrian.colorie_sudoku(sudoku_grid.SudokuGrid(descr.rstrip()))
                          for descr in entree)
        print('Création du GIF animé.')
        images[0].save(filename+'.gif', save_all=True,
                       append_images=images, optimize=True,
                       duration=500)
        os.system('rm -f {:s}'.format(filename))
    exit(0)
--- a/sudoku_grid.py
+++ b/sudoku_grid.py
@ -35,32 +35,32 @@ Module for internal representation of Sudoku grids.
 >>> grid = SudokuGrid(strgrid)
 >>> str(grid) == strgrid
 True
->>> grid[4, 6]
+>>> grid[3, 2]
 '9'
 >>> grid.get_row(2)
 '080900040'
 >>> grid.get_col(1)
 '048003500'
 >>> grid.get_square(4, 7)
-'070900005'
+'003002870'
 >>> grid[1, 5]
-'0'
+'3'
 >>> grid.is_empty_cell(1, 5)
 True
 >>> grid.is_empty_cell(4, 6)
 False
->>> grid[1, 5] =  '7'
+>>> grid.is_empty_cell(4, 6)
 True
 >>> grid[4, 6] =  '9'
 >>> grid.pretty_print()
 +-------+-------+-------+
 | 9 . 6 | . 2 8 | . . 3 |
-| . 4 . | 5 . 7 | . . 1 |
+| . 4 . | 5 . . | . . 1 |
 | . 8 . | 9 . . | . 4 . |
 +-------+-------+-------+
 | 6 . . | . . . | . 7 . |
 | . . 8 | 2 . 6 | 9 . . |
 | . 3 . | . . . | . . 5 |
 +-------+-------+-------+
-| . 5 . | . . 3 | . 6 . |
+| . 5 . | . 9 3 | . 6 . |
 | 1 . . | . . 2 | . 8 . |
 | 2 . . | 8 7 . | 5 . . |
 +-------+-------+-------+
@ -126,7 +126,7 @@ class SudokuGrid():
        :UC: coord must be a tuple of two valid coordinates
        """
        try:
-            row, col = coord
+            col, row = coord
            assert 0 <= row < 9
            assert 0 <= col < 9
            return self._grid[9 * row + col]
@ -142,7 +142,7 @@ class SudokuGrid():
        if not value in _SYMBOLS_SET:
            raise SudokuGridError("new value must be in ['0'..'9']")
        try:
-            row, col = coord
+            col, row = coord
            assert 0 <= row < 9
            assert 0 <= col < 9
            old_value = self._grid[9 * row + col]
@ -165,7 +165,7 @@ class SudokuGrid():
        """
        if not (0 <= row < 9):
            raise SudokuGridError('row must be in [0, 9[')
-        return ''.join(self[row, col] for col in range(9))
+        return ''.join(self[col, row] for col in range(9))
    def get_col(self, col):
        """
@ -177,9 +177,9 @@ class SudokuGrid():
        """
        if not (0 <= col < 9):
            raise SudokuGridError('col must be in [0, 9[')
-        return "".join([self[row, col] for row in range(9)])
+        return "".join([self[col, row] for row in range(9)])
-    def get_square(self, row, col):
+    def get_square(self, col, row):
        """
        :param row: row number of the cell in the square_block to select
        :type row: int
@ -195,10 +195,10 @@ class SudokuGrid():
            raise SudokuGridError('col must be in [0, 9[')
        firstrow = 3 * (row // 3)
        firstcol = 3 * (col // 3)
-        return "".join(self[firstrow + i, firstcol + j]
+        return "".join(self[firstcol + j, firstrow + i]
                       for i in range(3) for j in range(3))
-    def is_empty_cell(grid, row, col):
+    def is_empty_cell(grid, col, row):
        """
        :param row: row number of the cell to test
        :type row: int
@ -208,7 +208,7 @@ class SudokuGrid():
        :rtype: bool
        :UC: 0 <= row < 9, 0<= col < 9
        """
-        return grid[row, col] == EMPTY_SYMBOL
+        return grid[col, row] == EMPTY_SYMBOL
    def pretty_print(self):
        for row in range(9):
--- a/sudoku_mondrian.py
+++ b/sudoku_mondrian.py
@ -74,8 +74,8 @@ def colorie_sudoku(grid):
            for y in range(LGRILLE):
                img.putpixel(((j//2 + 1)*EGT + j*EPT + (j + 1 + j//2)*LCASE, y), COUL_TRAITS)
    # coloriage des cases
    for x in range(9):
    for y in range(9):
        for x in range(9):
            colorie_case(img, (x, y), int(grid[x, y]))
    return img
--- a/sudoku_solver.py
+++ b/sudoku_solver.py
@ -73,24 +73,35 @@ from sudoku_grid import SudokuGrid, EMPTY_SYMBOL
 def __possible_values(s):
    """
    :param s: 
    :type s: str
    :return: a substring of '123456789' containing no character in s
    :rtype: str
    """
    return "".join(c for c in '123456789' if c not in s)
 def __grid_exam(grid):
    """
    :param grid: a Sudoku grid
    :type grid: SudokuGrid
    :return: a tuple (s, coord) where
           * coord is a tuple of coordinate of a case 
           * poss is a string containing value's candidates for the case
           no other case has less possibilities
    :rtype: tuple
    """
-    ROWS = [grid.get_row(r) for r in range(9)]
+    ROWS = [grid.get_row(row) for row in range(9)]
-    COLS = [grid.get_col(c) for c in range(9)]
+    COLS = [grid.get_col(col) for col in range(9)]
-    SQUARES = [grid.get_square(3*r, 3*c) for r in range(3) for c in range(3)]
+    SQUARES = [grid.get_square(3*c, 3*r) for r in range(3) for c in range(3)]
    poss_min, coord_min = '0123456789', (-1, -1) 
-    for r in range(9):
+    for row in range(9):
-        for c in range(9):
+        for col in range(9):
-            if grid.is_empty_cell(r, c):
+            if grid.is_empty_cell(col, row):
-                poss = __possible_values(ROWS[r] + COLS[c] + SQUARES[3 * (r // 3) + (c // 3)])
+                poss = __possible_values(ROWS[row] + COLS[col] + SQUARES[3 * (row // 3) + (col // 3)])
                if len(poss) < len(poss_min):
                    poss_min = poss
-                    coord_min = (r, c)
+                    coord_min = (col, row)
    return poss_min, coord_min
 def __is_solved(grid):
@ -101,7 +112,7 @@ def __is_solved(grid):
    :rtype: bool
    :UC: none
    """
-    return not any(grid.is_empty_cell(row, col) for row in range(9) for col in range(9))
+    return not any(grid.is_empty_cell(col, row) for row in range(9) for col in range(9))
 def solve(grid, out_channel=None, node=None):
    """
@ -116,25 +127,27 @@ def solve(grid, out_channel=None, node=None):
            out_channel.write('\t"{:s}"[shape=hexagon, fillcolor="#00FF00"];\n'.format(node))        
        return [grid.copy()]
    else:
-        maybe, (i, j) = __grid_exam(grid)
+        maybe, (col, row) = __grid_exam(grid)
        res = [] 
-        for c in maybe:
+        for val in maybe:
            if not out_channel is None:
-                label = str((c, i, j))
+                label = str((val, col, row))
-                next_node = node + '{:s}{:d}{:d}'.format(c, i, j)
+                next_node = node + '{:s}{:d}{:d}'.format(val, col, row)
                out_channel.write('\t"{:s}"[label="{:s}"];\n'.format(next_node, label))
                out_channel.write('\t"{:s}" -> "{:s}";\n'.format(node, next_node))
            else:
                next_node = None
-            grid[i, j] = c
+            grid[col, row] = val
            res += solve(grid, out_channel, next_node)
-            grid[i, j] = EMPTY_SYMBOL
+            grid[col, row] = EMPTY_SYMBOL
        return res
-def solve_one(grid, pause=0):
+def solve_one(grid, pause=0, out_channel=None):
    """
    :param grid: a Sudoku grid to solve
    :type grid: sudoku_grid.grid
    :param pause: delay between two steps of resolution
    :type pause: float
    :return: a solution of grid
    :rtype: sudoku_grid.grid
    :UC: none
@ -142,17 +155,19 @@ def solve_one(grid, pause=0):
    time.sleep(pause)
    print("\x1b[2J", end='')
    grid.pretty_print()
    if out_channel:
        out_channel.write(str(grid)+'\n')
    if __is_solved(grid):
        return [grid]
    else:
-        maybe, (i, j) = __grid_exam(grid)
+        maybe, (col, row) = __grid_exam(grid)
        res = None 
-        for c in maybe:
+        for val in maybe:
-            grid[i, j] = c
+            grid[col, row] = val
-            res = solve_one(grid, pause)
+            res = solve_one(grid, pause, out_channel)
            grid[col, row] = EMPTY_SYMBOL
            if not res is None:
                return res
            grid[i, j] = EMPTY_SYMBOL
        return res