Function L_system

recipes/Python/577159_LSystem_Fractals/recipe-577159.py:10–23

(level, initial_state, trgt, rplcmnt, trgt2, rplcmnt2)

# generate the fractal drawing string
def L_system(level, initial_state, trgt, rplcmnt, trgt2, rplcmnt2):
    state = initial_state
   
    for counter in range(level):
        state2 = ''
        for character in state:
            if character == trgt:
                state2 += rplcmnt
            elif character == trgt2:
                state2 += rplcmnt2
            else:
                state2 += character
        state = state2
    return state

def draw_fractal(length, numAngle, level, initial_state, trgt, rplcmnt, trgt2, rplcmnt2):
    global imgx, imgy