def create_object():
"""
Creates the original DVD Logo. Code from here will be moved into
the new class that you are creating.
"""
width = 200
height = 200
obj = GCompound()
cube = GRect(0, 0, width, height)
cube.set_filled(True)
cube.set_color(random_color())
obj.add(cube)
dvdtext = GLabel("DVD")
dvdtext.set_font("bold 60px 'serif'")
obj.add(dvdtext, width / 2 - dvdtext.get_width() / 2, height / 2 - 10)
vidtext = GLabel("video")
vidtext.set_font("bold 50px 'serif'")
vidtext.set_color("white")
obj.add(vidtext, width / 2 - vidtext.get_width() / 2,
height / 2 + vidtext.get_ascent())
return obj
def __init__(self, text, fn=None):
GCompound.__init__(self)
label = GLabel(text)
label.set_font(self.BUTTON_FONT)
width = max(self.BUTTON_MIN_WIDTH,
2 * self.BUTTON_MARGIN + label.get_width())
frame = GRect(width, self.BUTTON_DEFAULT_HEIGHT)
frame.set_filled(True)
frame.set_fill_color("White")
self.add(frame)
self.add(label)
self.text = text
self.label = label
self.frame = frame
self.fn = fn
self._recenter()
def estimate_pi(tries):
"""
Uses random dart throws at a circular target to approximate
the value of pi. As the number of throws gets large, pi should
be approximately 4 times the fraction of throws that hit the
circle.
"""
def take_shot():
"""
Simulates a random "throw" toward the target, and draws
a circle of the correct color depending on if the
throw struck the target or not.
"""
x = random.random() * size
y = random.random() * size
is_hit = (x - radius)**2 + (y - radius)**2 < radius
if is_hit:
color = "red"
n_hits += 1
else:
color = "black"
gw.add(create_filled_circle(x, y, 1, color))
size = 500
radius = size / 2
# Creates the window and adds the circular target
gw = GWindow(size, size)
gw.add(create_filled_circle(radius, radius, radius, "blue"))
# Simulate tries number of throws
num_hits = 0
for i in range(tries):
take_shot()
# Compute pi
pi = num_hits / tries * 4
# Display the rounded value of pi centered pretty in window
lab = GLabel(str(round(pi, 2)))
lab.set_font("bold 100px 'serif'")
lab.set_color("white")
x = size / 2 - lab.get_width() / 2
y = size / 2 - lab.get_ascent() / 2
gw.add(lab, x, y)
