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  1. import matplotlib.pyplot as plt 
  2. def draw_line(x1, y1, x2, y2):
  3.     dx = abs(x2 - x1) 
  4.     dy = abs(y2 - y1) 
  5.     steep = dy > dx 
  6.     if steep:
  7.         x1, y1 = y1, x1 
  8.         x2, y2 = y2, x2 
  9.         dx, dy = dy, dx
  10.     if x1 > x2:
  11.         x1, x2 = x2, x1 
  12.         y1, y2 = y2, y1
  13.     p = 2 * dy - dx 
  14.     y = y1
  15.     points = []
  16.     for x in range(x1, x2 + 1): 
  17.         if steep:
  18.             points.append((y, x)) 
  19.         else:
  20.             points.append((x, y)) 
  21.         if p >= 0:
  22.             y += 1 if y1 < y2 else -1 
  23.             p -= 2 * dx 
  24.         p += 2 * dy 
  25.     return points
  26.  
  27.     def main():
  28.         x1, y1 = map(int, input("Enter starting point (x1 y1): ").split()) 
  29.         x2, y2 = map(int, input("Enter ending point (x2 y2): ").split()) 
  30.         points = draw_line(x1, y1, x2, y2)
  31.         x_values = [point[0] for point in points]
  32.         y_values = [point[1] for point in points]
  33.  
  34.         plt.plot(x_values, y_values, marker='0') 
  35.         plt.xlabel('X-axis')
  36.         plt.ylabel('Y-axis')
  37.         plt.title('Bresenham Line Drawing Algorithm') 
  38.         plt.grid()
  39.         plt.show()
  40.  
  41.     if 		name	== "	main	": 
  42.         main()
  43.  
Success #stdin #stdout 2.18s 53636KB
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https://ideone.com/c7Rzx8
language:
Python 3 (python  3.9.5)
created:
9 days ago
visibility:
public

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