CSC111 Lab 11 2018
D. Thiebaut (talk) 10:44, 15 April 2018 (EDT)
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Contents
Solution Programs
genericCar.py
from graphics import * from random import * class GenericCar: """Definition for a car with a body and two wheels""" def __init__(self, win, topLeft, width, height ): """constructs a car made of 1 rectangle with top-left point topLeft, dimension width x height, and two wheels away from left and right by 10 pixesl""" # save width and height of car self.width = width self.height = height # create bottom-right point x1 = topLeft.getX() y1 = topLeft.getY() P2 = Point( x1+width, y1+height ) # body is a rectangle between topLeft and P2 self.body = Rectangle( topLeft, P2 ) self.body.setFill( "yellow" ) # create wheel #1 center1 = Point( x1+20, y1+height ) self.wheel1 = Circle( center1, 20 ) self.wheel1.setFill( "black" ) # create wheel #2 center2 = Point( x1+width-20, y1+height ) self.wheel2 = Circle( center2, 20 ) self.wheel2.setFill( "black" ) # create random speed self.dx = randrange( -3, 3 ) # save window width (so that a car can detect # that it's going outside the left or right # margins) self.windowWidth = win.getWidth() def setSpeed( self, speed ): self.dx = speed def setFill( self, color ): '''sets the color of the body of the car''' self.body.setFill( color ) def draw( self, win ): """draw the car on the window""" self.body.draw( win ) self.wheel1.draw( win ) self.wheel2.draw( win ) def move( self ): """move the body and wheels of the car by dx""" self.body.move( self.dx, 0 ) self.wheel1.move( self.dx, 0 ) self.wheel2.move( self.dx, 0 ) class Taxi( GenericCar ): '''A class derived from the GenericCar class, with a yellow body, and the word "TAXI" on the side of its body.''' def __init__( self, win, topLeft, width, height ): super().__init__( win, topLeft, width, height ) x = (self.body.getP1().getX() + self.body.getP2().getX() )//2 y = (self.body.getP1().getY() + self.body.getP2().getY() )//2 self.label = Text( Point( x, y ), "T A X I" ) def draw( self, win ): super().draw( win ) self.label.draw( win ) def move( self ): super().move() self.label.move( self.dx, 0 ) def setFill( self, color ): return class CarWithTop( GenericCar ): def __init__(self, win, topLeft, width, height ): super().__init__( win, topLeft, width, height ) x1 = topLeft.getX()+20 y1 = topLeft.getY() x2 = topLeft.getX()+self.width-20 y2 = topLeft.getY()-30 self.top = Rectangle( Point( x1, y1 ), Point( x2, y2 ) ) def draw( self, win ): super().draw( win ) self.top.draw( win ) def setFill( self, color ): super().setFill( color ) self.top.setFill( color ) def move( self ): super().move() self.top.move( self.dx, 0 )
manyCars.py
# ManyCars.py # A program that uses many different classes # of cars, inherited from the GenericCar super # class. from genericCar import * from graphics import * WIDTH = 700 HEIGHT = 500 def main(): # open a graphic window win = GraphWin( "Cars Cars Cars", WIDTH, HEIGHT ) # create a generic car, draw it, set its speed # and set its color to blue car = GenericCar( win, Point( 100, 100 ), 200, 50 ) car.draw( win ) car.setSpeed( -1.5 ) car.setFill( "blue" ) taxi = Taxi( win, Point( 150, 200 ), 200, 50 ) taxi.draw( win ) taxi.setSpeed( 1.5 ) taxi.setFill( "lightblue" ) # keep on moving the car until the user clicks the mouse while win.checkMouse()==None: car.move( ) taxi.move( ) # close the graphic window win.close() main()
Solution Programs
Animals
# animals.py # D. Thiebaut # parses a list of lines containing # animal information and outputs several # interesting statistics about the quantities # contained in the text. text = """Black Mamba Snake 20.0 mph Cape Hunting Dog 45.0 mph Cat (domestic) 30.0 mph Cheetah 70.0 mph Chicken 9.0 mph Coyote 43.0 mph Elephant 25.0 mph Elk 45.0 mph Giant Tortoise 0.2 mph Giraffe 32.0 mph Gray Fox 42.0 mph Greyhound 39.4 mph Grizzly Bear 30.0 mph Human 27.9 mph Hyena 40.0 mph Jackal 35.0 mph Lion 50.0 mph Mongolian Wild Ass 40.0 mph Mule Deer 35.0 mph Pig (domestic) 11.0 mph Pronghorn Antelope 61.0 mph Quarter Horse 47.5 mph Rabbit (domestic) 35.0 mph Reindeer 32.0 mph Six-Lined Racerunner 18.0 mph Spider (Tegenaria atrica) 1.2 mph Squirrel 12.0 mph Thomson's Gazelle 50.0 mph Three-Toed Sloth 0.1 mph Warthog 30.0 mph Whippet 35.5 mph White-Tailed Deer 30.0 mph Wild Turkey 15.0 mph Wildebeest 50.0 mph Zebra 40.0 mph""" def main(): #---------------------------------------------------------- # display the list sorted by decreasing speed #---------------------------------------------------------- print( "\n\nCOMPLETE LIST, ORDERED BY DECREASING SPEED" ) list = [] for line in text.split( "\n" ): fields = line.split( ) # skip lines that do not contain a valid count of fields if len( fields ) < 3: continue # create a name and a speed name = fields[0:-2] # all fields except last 2 name = " ".join( name ) # join all fields with a space speed = float( fields[-2] ) # one before last field # create a tuple with speed listed first tuple = (speed, name ) # add it to the list list.append( tuple ) # sort the list in increasing order (smallest speed first) list.sort() # reverse the list list.reverse() # display the list for speed, name in list: print( "{0:30} {1:3.1f}".format( name, speed ) ) #---------------------------------------------------------- # display the 10 fastest in order of decreasing speed #---------------------------------------------------------- print( "\n\n10 FASTEST ANIMALS, ORDERED BY DECREASING SPEED" ) for i in range( min( 10, len( list ) ) ): speed, name = list[i] print( "{0:30} {1:3.1f}".format( name, speed ) ) #---------------------------------------------------------- # display the 10 slowest in order of decreasing speed #---------------------------------------------------------- print( "\n\n10 SLOWEST ANIMALS, ORDERED BY INCREASING SPEED" ) list.reverse() for i in range( min( 10, len( list ) ) ): speed, name = list[i] print( "{0:30} {1:3.1f}".format( name, speed ) ) #---------------------------------------------------------- # display the ratio of fastest to slowest #---------------------------------------------------------- print( "\n\nSPEED-RATIO OF FASTEST TO SLOWEST" ) fastestSpeed, fastestName = list[-1] slowestSpeed, slowestName = list[0] print( "The {0:1} is {1:1.0f} times faster than the {2:1}." .format( fastestName, fastestSpeed/slowestSpeed, slowestName )) #---------------------------------------------------------- # display the animals faster than human beings #---------------------------------------------------------- print( "\n\nANIMALS FASTER THAN HUMAN BEINGS" ) # find the speed of the human speedHuman = 0 for speed, name in list: if name.strip().lower()=="human": speedHuman = speed break # create a list of the animals faster than humans list2 = [] for speed, name in list: if speed > speedHuman: list2.append( name ) # sort the list alphabetically list2.sort() # display the list for name in list2: print( "{0:30}".format( name, speed ) ) if __name__=="__main__": main()
Aquarium
# aquariumLab11.py
# D. Thiebaut
# A graphics program based on Zelle's graphic library.
# Creates an application with the picture of an aquarium
# as the backdrop, then creates a school of fish, and animates
# them, having them move around the aquarium, in a somewhat
# random fashion.
from graphics import *
import random
WIDTH = 700
HEIGHT = 517
class Fish:
"""A class for the fish. Supports randomly moving in the
right to left direction"""
def __init__(self, fileName ):
self.img = Image( Point( random.randrange( WIDTH//2, WIDTH),
random.randrange( HEIGHT) ), fileName )
def draw( self, win ):
"""shows the fish on the graphics window"""
self.img.draw( win )
def moveRandom( self ):
"""moves the fish to the right, randomly. Some random up/down motion"""
deltaX = random.randrange( -5, 0 )
deltaY = random.randrange( -3, 4 )
self.img.move( deltaX, deltaY )
if self.img.getAnchor().getX() < -50:
self.img.move( WIDTH + 100, 0 )
def main():
# open the window
win = GraphWin( "CSC Aquarium", WIDTH, HEIGHT )
# display background
background = Image( Point( WIDTH//2, HEIGHT//2 ), "tank2.gif" )
background.draw( win )
# create a school of fish
fishList = []
for i in range( 10 ):
fish = Fish( "fish0.gif" )
fish.draw( win )
fishList.append( fish )
# animation loop.
while win.checkMouse() == None:
for fish in fishList:
fish.moveRandom()
# one more click to close the window.
win.getMouse()
win.close()
main()
Presidents
# presidents.py # D. Thiebaut # A program that processes a list of presidents and extracts list of # presidents with particular attributes. text="""Presidency ,President, Took office ,Left office ,Party , Home State 1, George Washington, 30/04/1789, 4/03/1797, Independent, Virginia 2, John Adams, 4/03/1797, 4/03/1801, Federalist, Massachusetts 3, Thomas Jefferson, 4/03/1801, 4/03/1809, Democratic-Republican, Virginia 4, James Madison, 4/03/1809, 4/03/1817, Democratic-Republican, Virginia 5, James Monroe, 4/03/1817, 4/03/1825, Democratic-Republican, Virginia 6, John Quincy Adams, 4/03/1825, 4/03/1829, Democratic-Republican/National Republican, Massachusetts 7, Andrew Jackson, 4/03/1829, 4/03/1837, Democratic, Tennessee 8, Martin Van Buren, 4/03/1837, 4/03/1841, Democratic, New York 9, William Henry Harrison, 4/03/1841, 4/04/1841, Whig, Ohio 10, John Tyler, 4/04/1841, 4/03/1845, Whig, Virginia 11, James K. Polk, 4/03/1845, 4/03/1849, Democratic, Tennessee 12, Zachary Taylor, 4/03/1849, 9/07/1850, Whig, Louisiana 13, Millard Fillmore, 9/07/1850, 4/03/1853, Whig, New York 14, Franklin Pierce, 4/03/1853, 4/03/1857, Democratic, New Hampshire 15, James Buchanan, 4/03/1857, 4/03/1861, Democratic, Pennsylvania 16, Abraham Lincoln, 4/03/1861, 15/04/1865, Republican/National Union, Illinois 17, Andrew Johnson, 15/04/1865, 4/03/1869, Democratic/National Union, Tennessee 18, Ulysses S. Grant, 4/03/1869, 4/03/1877, Republican, Ohio 19, Rutherford B. Hayes, 4/03/1877, 4/03/1881, Republican, Ohio 20, James A. Garfield, 4/03/1881, 19/09/1881, Republican, Ohio 21, Chester A. Arthur, 19/09/1881, 4/03/1885, Republican, New York 22, Grover Cleveland, 4/03/1885, 4/03/1889, Democratic, New York 23, Benjamin Harrison, 4/03/1889, 4/03/1893, Republican, Indiana 24, Grover Cleveland, 4/03/1893, 4/03/1897, Democratic, New York 25, William McKinley, 4/03/1897, 14/9/1901, Republican, Ohio 26, Theodore Roosevelt, 14/9/1901, 4/3/1909, Republican, New York 27, William Howard Taft, 4/3/1909, 4/03/1913, Republican, Ohio 28, Woodrow Wilson, 4/03/1913, 4/03/1921, Democratic, New Jersey 29, Warren G. Harding, 4/03/1921, 2/8/1923, Republican, Ohio 30, Calvin Coolidge, 2/8/1923, 4/03/1929, Republican, Massachusetts 31, Herbert Hoover, 4/03/1929, 4/03/1933, Republican, Iowa 32, Franklin D. Roosevelt, 4/03/1933, 12/4/1945, Democratic, New York 33, Harry S. Truman, 12/4/1945, 20/01/1953, Democratic, Missouri 34, Dwight D. Eisenhower, 20/01/1953, 20/01/1961, Republican, Texas 35, John F. Kennedy, 20/01/1961, 22/11/1963, Democratic, Massachusetts 36, Lyndon B. Johnson, 22/11/1963, 20/1/1969, Democratic, Texas 37, Richard Nixon, 20/1/1969, 9/8/1974, Republican, California 38, Gerald Ford, 9/8/1974, 20/01/1977, Republican, Michigan 39, Jimmy Carter, 20/01/1977, 20/01/1981, Democratic, Georgia 40, Ronald Reagan, 20/01/1981, 20/01/1989, Republican, California 41, George H. W. Bush, 20/01/1989, 20/01/1993, Republican, Texas 42, Bill Clinton, 20/01/1993, 20/01/2001, Democratic, Arkansas 43, George W. Bush, 20/01/2001, 20/01/2009, Republican, Texas""" def main(): # remove the first line from the list of lines lines = text.split( "\n" ) lines = lines[1:] # create a list of tuples list = [] for line in lines: fields = line.split( "," ) # skip invalid lines if len( fields ) != 6: continue # create tuple name = fields[1].strip() yearStart = int( fields[2].split( "/" )[2] ) yearEnd = int( fields[3].split( "/" )[2] ) party = fields[-2].strip() state = fields[-1].strip() tuple = ( name, yearStart, yearEnd, party, state ) # add tuple to list list.append( tuple ) #========================================================= # Display the list of presidents in alphabetical order #========================================================= print( "\n\nAlphabetical List of presidents".upper() ) list.sort() for name, y1, y2, party, s in list: print( name ) #========================================================= # Display the list of presidents associated with the democratic # party #========================================================= print( "\n\nAlphabetical List of Democrats".upper() ) for name, y1, y2, party, s in list: if party.lower().find( "democra" )!= -1: print( name ) #========================================================= # Display the president in office in 1945 #========================================================= print( "\n\nPresidents in office in 1945".upper() ) for name, y1, y2, party, s in list: if y1 <= 1945 <= y2: print( name ) #========================================================= # Display the president whose home state was Massachusetts #========================================================= print( "\n\nPresidents from Massachusetts".upper() ) for name, y1, y2, party, s in list: if s.capitalize().find( "Massa" ) != -1: print( name ) if __name__=="__main__": main()
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