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Mini Project 5 movie extension - Lauren Pudvan #1

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107 changes: 68 additions & 39 deletions recursive_art.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,14 +19,14 @@ def build_random_function(min_depth, max_depth):
"""


ran = random.randint(min_depth, max_depth)
func_list0 = ['x', 'y'] #zero input arguments
depth = random.randint(min_depth, max_depth) # chooses a random integer for the depth
func_list0 = ['x', 'y', 't'] #zero input arguments
func_list1 = ['sin_pi', 'cos_pi', 'square', 'abs_value']
func_list2 = ['prod', 'avg']
total_func_list = ['sin_pi', 'cos_pi', 'prod', 'avg']
res = []
total_func_list = ['sin_pi', 'cos_pi', 'square', 'abs_value', 'prod', 'avg']
res = [] # This is an empty list but will later store the random function

if ran <= 0:
if depth <= 0:
res.append(random.choice(func_list0))
return res
else:
Expand All @@ -42,7 +42,7 @@ def build_random_function(min_depth, max_depth):



def evaluate_random_function(f, x, y):
def evaluate_random_function(f, x, y, t):
""" Evaluate the random function f with inputs x,y
Representation of the function f is defined in the assignment writeup

Expand All @@ -56,37 +56,32 @@ def evaluate_random_function(f, x, y):
>>> evaluate_random_function(["y"],0.1,0.02)
0.02
"""
functions = ['prod', 'avg', 'sin_pi', 'cos_pi', 'x', 'y', 'square', 'abs_value']
# These are for reference
# prod(a,b) = ab
# avg(a,b) = 0.5*(a+b)
# sin_pi(a) = sin(pi*a)
# cos_pi(a) = cos(pi*a)
# x(a,b) = a
# y(a,b) = b
# square(a) = a^2
# abs_value(a) = abs(a)
if len(f) == 1:
if f == ["x"]:
return x
elif f == ["y"]:
return y
if f[0] == 'prod':
return float(evaluate_random_function(f[1], x, y)) * float(evaluate_random_function(f[2], x, y))
elif f[0] == 'avg':
return .5*(evaluate_random_function(f[1], x, y)+evaluate_random_function(f[2], x, y))
elif f[0] == 'sin_pi':
return math.sin(math.pi * evaluate_random_function(f[1], x, y))
elif f[0] == 'cos_pi':
return math.cos(math.pi * evaluate_random_function(f[1], x, y))
elif f[0] == 'square':
return (evaluate_random_function(f[1], x, y))**2
elif f[0] == 'abs_value':
return abs(evaluate_random_function(f[1], x, y))
elif f[0] == 'x':
elif f == ["t"]:
return t
if f[0] == 'prod': # prod(a,b) = ab
return float(evaluate_random_function(f[1], x, y, t)) * \
float(evaluate_random_function(f[2], x, y, t))
elif f[0] == 'avg': # avg(a,b) = 0.5*(a+b)
return .5*(evaluate_random_function(f[1], x, y, t)+evaluate_random_function(f[2], x, y, t))
elif f[0] == 'sin_pi': # sin_pi(a) = sin(pi*a)
return math.sin(math.pi * evaluate_random_function(f[1], x, y, t))
elif f[0] == 'cos_pi': # cos_pi(a) = cos(pi*a)
return math.cos(math.pi * evaluate_random_function(f[1], x, y, t))
elif f[0] == 'square': # square(a) = a^2
return (evaluate_random_function(f[1], x, y, t))**2
elif f[0] == 'abs_value': # abs_value(a) = abs(a)
return abs(evaluate_random_function(f[1], x, y, t))
elif f[0] == 'x': # x(a,b,c) = a
return x
elif f[0] == 'y':
elif f[0] == 'y': # y(a,b,c) = b
return y
elif f[0] == 't': # y(a,b,c) = c
return t


def remap_interval(val,
Expand Down Expand Up @@ -145,8 +140,7 @@ def color_map(val):
191
"""
# NOTE: This relies on remap_interval, which you must provide
color_code = remap_interval(val, -1, 1, 0, 255)
return int(color_code)
return int(remap_interval(val, -1, 1, 0, 255))


def test_image(filename, x_size=350, y_size=350):
Expand All @@ -171,7 +165,6 @@ def test_image(filename, x_size=350, y_size=350):

def generate_art(filename, x_size=350, y_size=350):
""" Generate computational art and save as an image file.

filename: string filename for image (should be .png)
x_size, y_size: optional args to set image dimensions (default: 350)
"""
Expand All @@ -182,7 +175,6 @@ def generate_art(filename, x_size=350, y_size=350):
red_function = build_random_function(7, 9)
green_function = build_random_function(7, 9)
blue_function = build_random_function(7, 9)

# Create image and loop over all pixels
im = Image.new("RGB", (x_size, y_size))
pixels = im.load()
Expand All @@ -191,16 +183,53 @@ def generate_art(filename, x_size=350, y_size=350):
x = remap_interval(i, 0, x_size, -1, 1)
y = remap_interval(j, 0, y_size, -1, 1)
pixels[i, j] = (
color_map(evaluate_random_function(red_function, x, y)),
color_map(evaluate_random_function(green_function, x, y)),
color_map(evaluate_random_function(blue_function, x, y))
color_map(evaluate_random_function(red_function, x, y, t)),
color_map(evaluate_random_function(green_function, x, y, t)),
color_map(evaluate_random_function(blue_function, x, y, t))
)

im.save(filename)




def movie_frames(t_begining, t_end, x_size=350, y_size=350):
'''This makes the frames of the movie from a red function, green function and blue function.
begining = first frame,
end = last frame
'''
red_function = build_random_function(7, 9)
green_function = build_random_function(7, 9)
blue_function = build_random_function(7, 9)
t_size = t_end - t_begining
# Create image and loop over all pixels
list_of_pixels = []
for t in range(t_size):
im = Image.new("RGB", (x_size, y_size))
pixels = im.load()
filename = '{}{}{}'.format('frame',t,'.png')
t = remap_interval(t, 0, t_size,-1, 1)
for i in range(x_size):
for j in range(y_size):
x = remap_interval(i, 0, x_size, -1, 1)
y = remap_interval(j, 0, y_size, -1, 1)

pixels[i, j] = (
color_map(evaluate_random_function(red_function, x, y, t)),
color_map(evaluate_random_function(green_function, x, y, t)),
color_map(evaluate_random_function(blue_function, x, y, t))
)
list_of_pixels.append(pixels)
# print color_map(evaluate_random_function(red_function, 100, 100, t)) # This was used for testing when my frames were all the same
im.save(filename)






if __name__ == '__main__':
# import doctest
# doctest.testmod()
# Create some computational art!
generate_art("example4.png")
#generate_art("example70.png")
movie_frames(1, 40)
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@LucyWilcox LucyWilcox May 5, 2016

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🎦