реализация

README.md

@@ -1 +1,15 @@
-# grad
+# Градиент, по параметрической кривой, реализованный путём интерполяции линейного оператора
+## algebra.py:
+### Vector
+Реализация векторов, как элементов векторного пространства
+### Poly
+Реализация многочленов, как элементов кольца многочленов над полем
+### Interpol
+Интерполяция по методу Лагранжа
+## window.py
+### Окно Tk
+- По нажатию ЛКМ отмечает на экране точку
+- По нажатию space выставляет 5 случайных точек
+- По нажатию esc очищает холст
+## grad.py
+По мажатию Enter выстраивает интерполяционный многочлен по заданным точкам, окрашивая кривую градиентом по случайным цветам в каждой из точек

algrebra.py

@@ -0,0 +1,166 @@
+from typing import Union, List
+
+class Vector:
+    def __init__(self, *comps):
+        self.len = len(comps)
+        self.comps = comps
+    
+    def __add__(self, other):
+        if type(self) == type(other):
+            if self.len == other.len:
+                return Vector(*(self.comps[i] + other.comps[i] for i in range(self.len)))
+            else:
+                return "Длины должны совпадать"
+    
+    def __sub__(self, other):
+        if type(self) == type(other):
+            if self.len == other.len:
+                return self + (-other)
+            else:
+                return "Длины должны совпадать"
+            
+    def __neg__(self):
+        return Vector(*(-self.comps[i] for i in range(self.len)))
+    
+    def __str__(self):
+        return '(' + ', '.join(map(str, self.comps)) + ')'
+    
+    def __mul__(self, other):
+        if type(other) == Vector:
+            if self.len == other.len:
+                return sum((self.comps[i]*other.comps[i] for i in range(self.len)))
+            else:
+                return "Длины должны совпадать"
+        if type(other) == int:
+            return Vector(*(self.comps[i] * other for i in range(self.len)))
+        
+    def __round__(self):
+        return Vector(*(round(self.comps[i]) for i in range(self.len)))
+    
+    def tuple(self):
+        return self.comps
+        
+    
+
+class Poly:
+    def __init__(self, coefs: Union[List[int], int]):
+
+        if type(coefs) == int:
+            self.coefs = [coefs]
+            self.deg = 0
+
+        elif type(coefs) == list:
+            self.coefs = coefs
+            self.deg = len(coefs) - 1
+    
+    def __neg__(self):
+        coefs = [-a for a in self.coefs]
+
+        return Poly(coefs)
+    
+    def __add__(self, other):
+        if type(other) == int:
+            return self + Poly(other)
+        
+        if type(other) == Vector:
+            new_comps = []
+            for com in other.comps:
+                new_comps.append(self + com)
+            
+            return Vector(*new_comps)
+        
+        if type(other) == Poly:
+            p = self.coefs + [0]*other.deg
+            q = other.coefs + [0]*self.deg
+
+            n = max(self.deg, other.deg)
+            result = [0]*n
+
+            for k in range(n):
+                result[k] = p[k] + q[k]
+
+            return Poly(result)
+    
+    def __sub__(self, other):
+        return self + (-other)
+    
+    def __mul__(self, other):
+        if type(other) == int:
+            coefs = [other*a for a in self.coefs]
+
+            return Poly(coefs)
+        
+        elif type(other) == Vector:
+            new_coms = []
+            
+            for com in other.comps:
+                new_coms.append(self * com)
+            
+            return Vector(*new_coms) 
+        
+        elif type(other) == Poly:
+            n = self.deg
+            m = other.deg
+            p = list(self.coefs) + [0] * other.deg
+            q = list(other.coefs) + [0] * self.deg            
+            result = [0]*(self.deg + other.deg + 1)
+            
+            for k in range(self.deg + other.deg + 1):
+                for l in range(k + 1):
+                    result[k] += p[l]*q[k-l]
+
+            return Poly(result)
+
+    def __str__(self):
+        res = []
+        for i in range(self.deg+1):
+            if self.coefs[i] == 0:
+                continue
+            
+            if i == 0:
+                res.append(f"({self.coefs[i]})")
+            elif i == 1:
+                res.append(f"({self.coefs[i]}*x)")
+            else:
+                res.append(f"({self.coefs[i]}*x^{i})")
+        return ' + '.join(res)
+    
+    def value(self, t):
+        res = 0
+        for i in range(self.deg+1):
+            res += self.coefs[i]*(t**i)
+        return res
+    
+    def diff(self):
+        if self.deg > 0:
+            coefs = [self.coefs[i] * i for i in range(1, self.deg + 1)]
+            return Poly(coefs)
+        else:
+            return 0
+    
+    pass
+
+
+def interpol(points: List[tuple]) -> Poly:
+    n = len(points)
+
+    X = tuple(point[0] for point in points)
+    Y = tuple(point[1] for point in points)
+    
+    res = Poly([0]*n)
+
+    for i in range(n):
+        iter = Poly([0]*n)
+        iter.coefs[0] = 1
+
+        for j in range(n):
+            if i==j:
+                continue    
+
+            dx = 1/(X[i] - X[j])
+            iter = iter * Poly([-X[j]*dx, dx])
+
+        res = res + (iter * Y[i])
+    return res
+
+

grad.py

@@ -1,22 +1,81 @@
-from vector import Vector
-from typing import Tuple, List
-
-def interpol(points: List[Tuple[int]]) -> List[Tuple[int]]:
-    n = len(points)
-    X = tuple(point[0] for point in points)
-    Y = tuple(point[1] for point in points)
-    graph = []
-    for t in range(points[0][0], points[n-1][0]+1):
-        y = 0
-        for i in range(n):
-            q = Y[i]
-            for j in range(n):
-                if j != i:
-                    q = q * (t-X[j]) / (X[i] - X[j])
-            y = y + q
-        graph.append((t, y))
-    return graph
+from algrebra import *
+from window import window
+from random import randint
 
 
-def main(points: List[Tuple[int]], colors: Tuple[Vector]) -> Tuple[int]:
-    return ()
+
+def color_filter(color):
+    result = []
+    for el in color:
+        if (el < 0):
+            result.append(0)
+        elif (el > 255):
+            result.append(255)
+        else:
+            result.append(round(el))
+    return tuple(result)
+
+
+def rgb_to_hex(color):
+    r, g, b = color
+    return f'#{r:02x}{g:02x}{b:02x}'
+
+
+def main(wind):
+    L = interpol(wind.points)
+    dL = L.diff()
+    N = len(wind.points)
+    perp = []
+
+    for p in wind.points:
+        k = dL.value(p[0])
+        if k==0:
+            wind.canvas.create_line(p[0], 0, p[0], wind.height, fill=rgb_to_hex((0, 0, 0)))
+        else:
+            k = -1/k
+            b = p[1] - k*p[0]
+            perp.append(Poly([b, k]))
+
+    colors = [(0, Vector(0, 0, 0))]
+    for i in range(N):
+        colors.append((wind.points[i][0], Vector(randint(0, 255), randint(0, 255), randint(0, 255))))
+    colors.append((width, Vector(255, 255, 255)))
+
+    color_func = interpol(colors).tuple()
+
+    step = 0.5
+    for dx in range(round(width/step)):
+        x=dx*step
+        color = color_filter(comp.value(x) for comp in color_func)
+        print(x, color)
+        """ 
+        k = dL.value(x)
+        if k == 0:
+            wind.canvas.create_line(x, L.value(x), x+1, L.value(x+1), fill=rgb_to_hex(color))
+        else:
+            k = -1/k
+            b = L.value(x) - k*x
+            for y in range(width*2):
+                wind.canvas.create_line(y/2, k*y/2+b, y/2+1, k*(y/2+1)+b, fill=rgb_to_hex(color)) 
+        """
+        wind.canvas.create_line(x, L.value(x), x+step, L.value(x+step), fill=rgb_to_hex((color)), width=5)
+
+        
+    for i in range(N):
+        wind.canvas.create_oval(colors[i][0] - 3, L.value(colors[i][0]) - 3, colors[i][0] + 3, L.value(colors[i][0]) + 3, fill=rgb_to_hex(colors[i][1].tuple()))
+
+
+
+
+if __name__ == "__main__":
+    title = 'Huy'
+    width = 1000
+    height = 500
+    wind = window(title, width, height)
+
+    def on_enter_pressed(event):
+        main(wind)
+    
+    wind.bind("<Return>", on_enter_pressed)
+
+    wind.mainloop()

main.py

@@ -1,43 +0,0 @@
-import tkinter as tk
-from grad import interpol
-
-def rgb_to_hex(color):
-    r, g, b = color
-    return f'#{r:02x}{g:02x}{b:02x}'
-
-# Создаем основное окно
-root = tk.Tk()
-root.title("Pixel Coloring")
-
-# Устанавливаем размеры окна
-width = 400
-height = 400
-
-# Создаем холст (Canvas) для рисования
-canvas = tk.Canvas(root, width=width, height=height)
-canvas.pack()
-
-# Массив для хранения координат точек
-points = []
-
-# Функция, которая будет вызвана при нажатии Enter
-def on_enter_pressed(event):
-    graph = interpol(points)
-    for x, y in graph:
-        canvas.create_line(x, y, x+1, y, fill=rgb_to_hex((0, 0, 0)))
-
-# Функция, которая вызывается при нажатии мыши
-def on_mouse_click(event):
-    x, y = event.x, event.y
-    points.append((x, y))  # Добавляем координаты в массив
-    print(f"Point added: ({x}, {y})")
-    # Рисуем точку на холсте
-    canvas.create_oval(x - 3, y - 3, x + 3, y + 3, fill="red")
-
-# Привязываем события
-canvas.bind("<Button-1>", on_mouse_click)  # Левый клик мыши
-root.bind("<Return>", on_enter_pressed)    # Клавиша Enter
-
-
-# Запускаем главный цикл обработки событий
-root.mainloop()

vector.py

@@ -1,39 +0,0 @@
-class Vector():
-    def __init__(self, *comps):
-        self.len = len(comps)
-        self.comps = comps
-    
-    def __add__(self, other):
-        if type(self) == type(other):
-            if self.len == other.len:
-                return Vector(*(self.comps[i] + other.comps[i] for i in range(self.len)))
-            else:
-                return "Длины должны совпадать"
-    
-    def __sub__(self, other):
-        if type(self) == type(other):
-            if self.len == other.len:
-                return Vector(*(self.comps[i] - other.comps[i] for i in range(self.len)))
-            else:
-                return "Длины должны совпадать"
-            
-    def __neg__(self):
-        return Vector(*(-self.comps[i] for i in range(self.len)))
-    
-    def __str__(self):
-        return '(' + ', '.join(map(str, self.comps)) + ')'
-    
-    def __mul__(self, other):
-        if type(other) == Vector:
-            if self.len == other.len:
-                return sum((self.comps[i]*other.comps[i] for i in range(self.len)))
-            else:
-                return "Длины должны совпадать"
-        if type(other) == int:
-            return Vector(*(self.comps[i] * other for i in range(self.len)))
-        
-    def __round__(self):
-        return Vector(*(round(self.comps[i]) for i in range(self.len)))
-    
-    def tuple(self):
-        return self.comps

window.py

@@ -0,0 +1,52 @@
+import tkinter as tk
+from random import randint
+
+
+def rgb_to_hex(color):
+    r, g, b = color
+    return f'#{r:02x}{g:02x}{b:02x}'
+
+def window(title, width, height):
+    # Создаем основное окно
+    root = tk.Tk()
+    root.title(title)
+
+    # Устанавливаем размеры окна
+    root.width = width
+    root.height = height
+
+    # Создаем холст (Canvas) для рисования
+    root.canvas = tk.Canvas(root, width=width, height=height)
+    root.canvas.pack()
+
+    # Массив для хранения координат точек
+    root.points = []
+
+    # Функция, которая вызывается при нажатии мыши
+    def on_mouse_click(event):
+        x, y = event.x, event.y
+        root.points.append((x, y))  # Добавляем координаты в массив
+        print(f"Point added: ({x}, {y})")
+        # Рисуем точку на холсте
+        root.canvas.create_oval(x - 3, y - 3, x + 3, y + 3, fill="red")
+
+    def on_esc_pressed(event):
+        root.points = []
+        root.canvas.delete("all")
+
+    def on_space_pressed(event):
+        on_esc_pressed(event)
+
+        for i in range(5):
+            x = randint(round(root.width * 0.2), round(root.width * 0.8))
+            y = randint(round(root.height * 0.2), round(root.height * 0.8))
+            root.points.append((x, y))
+            root.canvas.create_oval(x - 3, y - 3, x + 3, y + 3, fill="red")
+
+
+    # Привязываем события
+    root.canvas.bind("<Button-1>", on_mouse_click)  # Левый клик мыши
+    root.bind("<space>", on_space_pressed)
+    root.bind("<Escape>", on_esc_pressed)
+
+    return root