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Graded Homework 4 #2

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Graded Homework 4 #2

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49 changes: 28 additions & 21 deletions hw4/random_art.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
"""
Created on Tue Feb 11 11:34:57 2014

@author: pruvolo
@author: #Write your name here
"""

from __future__ import division
Expand All @@ -28,7 +28,8 @@ def build_random_function(min_depth, max_depth):
return [rand_func, build_random_function(depth-1,depth-1)]
elif rand_func in functions[3:]:
return [rand_func,build_random_function(depth-1,depth-1),build_random_function(depth-1,depth-1)]
f=build_random_function(7, 8)


def evaluate_random_function(f, x, y):

"""Inputs a random function along with two random variables x,y, which
Expand Down Expand Up @@ -59,29 +60,35 @@ def remap_interval(val, input_interval_start, input_interval_end, output_interva
is an affine one (i.e. output = input*c + b).Then it returns the
output value in the given resulting range.
"""
#Are you sure this does float division?
ratio=(val-input_interval_start)/(input_interval_end-input_interval_start)
return (ratio*(output_interval_end-output_interval_start)+output_interval_start)

im = Image.new("RGB",(350,350))
red_function = build_random_function(5,14)
green_function = build_random_function(7,20)
blue_function = build_random_function(6,15)
pixels=im.load()

for i in range(350):
for j in range(350):
x=remap_interval(i,0,350,-1,1)
y=remap_interval(j,0,350,-1,1)
r1=evaluate_random_function(red_function,x,y)
g1=evaluate_random_function(green_function,x,y)
b1=evaluate_random_function(blue_function,x,y)
r=remap_interval(r1,-1,1,0,255)
g=remap_interval(g1,-1,1,0,255)
b=remap_interval(b1,-1,1,0,255)
pixels[i,j]=(int(r), int(g), int(b))
def drawImage(windowX, windowY):
"""
Put this in a function or run it in __main__ conditional
"""
im = Image.new("RGB",(350,350))
red_function = build_random_function(5,14)
green_function = build_random_function(7,20)
blue_function = build_random_function(6,15)
pixels=im.load()

for i in range(350):
for j in range(350):
x=remap_interval(i,0,350,-1,1)
y=remap_interval(j,0,350,-1,1)
r1=evaluate_random_function(red_function,x,y)
g1=evaluate_random_function(green_function,x,y)
b1=evaluate_random_function(blue_function,x,y)
r=remap_interval(r1,-1,1,0,255)
g=remap_interval(g1,-1,1,0,255)
b=remap_interval(b1,-1,1,0,255)
pixels[i,j]=(int(r), int(g), int(b))

im.save("example1.JPEG")
im.save("example1.JPEG")

if __name__=="__main__":
print f
# f=build_random_function(7, 8)
# print f
print evaluate_random_function(f, .4, .7)