def perimeter(self):
'Circumference corrected for the rubber on the tire'
return Circle.perimeter(
self) * self.RUBBER_RATIO # Extending using a direct reference
return super(
Tire,
self).perimeter() * self.RUBBER_RATIO # Extending using super()
return 2.0 * math.pi * self.radius * self.RUBBER_RATIO # Overriding
print "seed with Jenny's number: {jenny}".format(jenny=jenny)
circles = [Circle(random()) for i in xrange(n)]
areas = [circle.area() for circle in circles]
average_area = sum(areas) / n
print 'The average area is %.5f' % average_area
print
## Rubber Sheet Company ####################################
cut_template = [0.1, 0.2, 0.7]
print 'Specifications for the cut template', cut_template
circles = [Circle(cut_radius) for cut_radius in cut_template]
for i, c in enumerate(circles, start=1):
print 'Circle #%d:' % i
print 'A rubber circle with a cut radius of', c.radius
print 'has a perimeter of', c.perimeter()
print 'and a cold area of', c.area()
c.radius *= 1.1 # c.set_radius(c.get_radius() * 1.1)
print 'and a warm area of', c.area()
print
## National Tire Company ##################################
import math
class Tire(Circle):
'Circle analytics on a rubber tire'
RUBBER_RATIO = 1.25
m = MonsterTire(30)
print 'A monster tire with an inner radius of', m.radius
print 'has an inner area of', m.area()
print 'and an outer perimeter of', m.perimeter()
print
## National Trucking Company ##############################################
print u'An inclinometer reading of 5\N{degree sign}',
print 'is a %.1f%% grade.' % Circle.angle_to_grade(5)
print
## National Graphics Company ##############################################
c = Circle.from_bbd(25)
print 'A circle with a bounding box diagonal of 25'
print 'has a radius of', c.radius
print 'a perimeter of', c.perimeter()
print 'and an area of', c.area()
print
## US Gov't ###############################################################
# ISO 10666: No circle software shall compute an area directly from
# instance data. It MUST first call perimeter and infer the data indirectly.
# ISO 10667: No circle software shall store the radius in an instance.
# It MUST store the diameter and ONLY the diameter.
def perimeter(self):
return Circle.perimeter(self) * self.RUBBER_RATIO # Extending
return 2.0 * 3.14 * self.radius * self.RUBBER_RATIO # Overriding
def perimeter(self):
'Odometer correct perimeter that accounts for the rubber on tire'
# Overriding -- don't call the parent method
# Extending -- call the parent method and then modify it's result
return Circle.perimeter(self) * self.RUBBER_RATIO
print 'A tire with an inner radius of', t.radius
print 'and inner area of', t.area()
print 'and an outer perimeter of', t.perimeter()
print
## National Trucking Company #####
print u'A 5\N{DEGREE SIGN} degree inclinometer reading',
print 'is %.1f%% grade' % Circle.angle_to_grade(5)
print
## National Graphic Company #########
c = Circle.from_bbd(40)
print 'A circle with a bounding box diagonal of 40'
print 'has a perimeter of', c.perimeter()
print 'and a radius of', c.radius
print 'and an area of', c.area()
print
## US Government ###########
# ISO 10111: All circle software SHALL NOT access the radius directly.
# It MUST call perimeter() and infer the radius indirectly
# ISO 10112: No circle software shall store the radius. It must store the diameter and only the diameter.
def perimeter(self):
'Perimeter adjusted for width of tire'
return Circle.perimeter(self) * 1.25
def perimeter(self):
return Circle.perimeter(self) * self.RUBBER_RATIO # Extending
def perimeter(self):
"adjusted perimeter for width of tire"
return Circle.perimeter(self) * 1.25