CSC111 Homework 4 Solutions 2011

--D. Thiebaut 14:13, 17 October 2011 (EDT)

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Music

Version 1

# hw4b.py
# Julie Woods
# (Edited by D. Thiebaut)
# 111a-ba
# This is the beginning notes to "Good King Wenceslas" for the cello,
# without the stems for the notes or the clef sign
# Beneath are the 7 keys of the piano.

from graphics import *
def main():
    # open a graphics window
    width = 800
    height = 600
    win = GraphWin( "Hw4b - 111a-ba", width, height )
 
    # draw 5 lines
    for i in range (1, 6):
        line = Line( Point( 10, 75 + i*35 ), Point( width-10, 75 + i*35 ) )
        line.setFill( "black" )
        line.setWidth( 5 )
        line.draw( win )

    # draw 7 circles placed on separate lines
    radius = 15 
    for j in range (1,3):
        c = Circle( Point( 100*j, 127.5 ), radius )
        # make the circle look like a note
        c.setFill( "black" )
        c.draw( win )  
    for k in range (400, 601, 200):
        c4 = Circle( Point( k, 162.5 ), radius )
        c4.setFill( "black" )
        c4.draw( win )

    c3 = Circle( Point( 300, 180 ), radius )
    c3.setFill( "white" )
    c3.setWidth (7)
    c3.draw( win )
    
    c5 = Circle( Point( 500, 180 ), radius )
    c5.setFill( "black" )
    c5.draw( win )

    c7 = Circle( Point( 700, 145 ), radius )
    c7.setFill( "black" )
    c7.draw( win )

    # Make bar between notes
    bar = Line( Point( 350, 75+ 35 ), Point( 350, 250 ) )
    bar.setFill( "black" )
    bar.setWidth( 5 )
    bar.draw( win )

    # white piano keys
    for i in range (250, 551, 50):
        rect     = Rectangle( Point( i, 300 ), Point( i+50, 500))
        rect.setWidth( 5 )  
        rect.setFill( "white" )
        rect.draw( win )
        
    # black piano keys
    for x in  [283, 283+50, 283+50*2, 483, 483+50 ]:
        rect     = Rectangle( Point( x, 300 ), Point( x+34, 410))
        rect.setWidth( 5 )  
        rect.setFill( "black" )
        rect.draw( win )
    
    # Wait for user to click mouse. 
    win.getMouse()
    win.close()

main()

Version 2

# hw4b.py
# 111a-ap  Libby Jackson
# (Edited by D. Thiebaut -- just the header of the program)
# this program displays a graphic of the beginning
# notes of Desperado by The Eagles
# with a set of piano keys underneath, combining
# white keys as well as black keys.

from graphics import *

# define size
width  = 600
height = 600

# draw window
win = GraphWin("Desperado Score - 111a-ap", width, height)
win.setBackground("white")

def staff():
    # draw staff
    for i in range(1, 6, 1):
        p1 = Point( width/5, height * ( 1 +i/4 )/10)
        p2 = Point( width * 4/5 , height * ( 1 +i/4)/10)
        line = Line(p1, p2)
        line.setWidth(2)
        line.draw(win)

def notes():
    # draw first note
    # an "a"
    p3 = Point( (width/ 5) + 5, height * 2/10)
    p4 = Point( (width/ 5) + 25, height * (1 + 3/4)/10)
    example = Oval(p3, p4)
    example.setFill("black")

    p11 = Point( (width/ 5)+ 10, height*  1.8/10)
    p12 = Point( (width/ 5)+ 25, height* (1 + 3.9/4)/10)
    first = Oval(p11,p12)
    first.setFill("black")
    first.draw(win)

    p5 = Point( (width/5) + 25,  height * 1.3/10)
    p6 = Point( (width/5) + 25,  height * 1.9/10)
    stem1 = Line( p5, p6)
    stem1.setWidth( 3 )
    stem1.draw(win)

    # draw second note
    # a "b"
    second = example.clone()
    second.move(30, -10)
    second.draw(win)
    
    p7 = Point( (width/5) + 36, height * 1.65/10)
    p8 = Point( (width/5) + 36, height * 2.5/10)
    stem2 = Line( p7, p8)
    stem2.setWidth( 3 )
    stem2.draw(win)

    # draw third note
    # a "b"
    third = second.clone()
    third.move(55, 0)
    third.draw(win)

    stem3 = stem2.clone()
    stem3.move(73, -45)
    stem3.draw(win)
    
    # draw fourth note
    # an "a"
    fourth = third.clone()
    fourth.move(40, 10)
    fourth.draw(win)

    stem4 = stem3.clone()
    stem4.move(40, 10)
    stem4.draw(win)

    # draw fifth note
    # an "a"
    fifth = fourth.clone()
    fifth.move(40, 0)
    fifth.draw(win)

    stem5 = stem4.clone()
    stem5.move(40,0)
    stem5.draw(win)

    # draw sixth note
    # a "g"
    sixth = fifth.clone()
    sixth.move(40, 7)
    sixth.draw(win)

    stem6 = stem5.clone()
    stem6.move(40, 7)
    stem6.draw(win)


    # draw seventh note
    # a "g"
    seventh = sixth.clone()
    seventh.move(70, 0)
    seventh.draw(win)

    stem7 = stem6.clone()
    stem7.move(70,0)
    stem7.draw(win)

    # draw eighth note
    # a "g"
    eighth = seventh.clone()
    eighth.move(50, 0)
    eighth.draw(win)

    stem8 = stem7.clone()
    stem8.move(50,0)
    stem8.draw(win)

def accents():
    # first bar
    p1 = Point( ( width/5) + 107, height * 1.2 /14)
    p2 = Point(( width * 3/5) - 10, height * 1.7/14)
    bar1 = Line( p1, p2)
    bar1.setWidth( 5 )
    bar1.draw(win)

    # second bar
    bar2 = bar1.clone()
    bar2.move(0, 7)
    bar2.draw(win)

    # third bar
    p1 = Point( (width * 4/5) - 9, height * 1.7/14)
    p2 = Point( (width * 4/5) - 62, height * 1.7/14)
    bar3 = Line(p1,p2)
    bar3.setWidth( 7 )
    bar3.draw(win)

    # fourth bar
    p3 = Point( (width * 4/5) - 40, height * 2/14)
    p4 = Point( (width * 4/5) - 62, height* 2/14)
    bar4 = Line(p3, p4)
    bar4.setWidth( 5 )
    bar4.draw(win)

    # bar 5
    p9 = Point( ( width * 1.3/5), height * 3.5/14)
    p10 = Point( ( width *  1.4/5), height * 2.8/14)
    bar5 = Line( p9, p10)
    bar5.setWidth( 3 ) 
    bar5.draw(win)

    # bar 6
    p11 = Point( (width * 1.2/5), height * 1.8/14)
    p12 = Point( (width * 1.27/5), height * 2.3/14)
    bar6 = Line( p11, p12)
    bar6.setWidth( 3)
    bar6.draw(win)

    # staccato 
    p5 = Point( ( width * 4/5) - 5, height * 2.68/14)
    circ1 = Circle( p5, 2)
    circ1.setFill( "black" ) 
    circ1.draw(win)

    # slurs
    p5 = Point( ( width * 3.47/5), height * 2.45/14)
    p7 = Point( ( width * 2.5/5), height * 3.5/14)
    slur2 = Oval( p7, p5)
    slur2.setWidth( 0 )
    slur2.setFill("black")
    slur2.draw(win)

    white2 = slur2.clone()
    white2.move(0, -3)
    white2.setFill("white")
    white2.draw(win)

    p5 = Point( ( width * 3.45/5), height * 2.7/14)
    p6 = Point( ( width * 2.85/5), height * 3.3/14)
    slur1 = Oval( p5, p6)
    slur1.setWidth( 0 )
    slur1.setFill("black")
    slur1.draw(win)

    white1 = slur1.clone()
    white1.move( 0, -3)
    white1.setFill("white")
    white1.draw(win)

    p7 = Point( ( width * 1.4/5), height * 1.8/14)
    p8 = Point( ( width * 1.85/5), height * 2.5/14)  
    slur3 = Oval( p7, p8)
    slur3.setWidth( 0 )
    slur3.setFill("black")
    slur3.draw(win)
    
    white3 = slur3.clone()
    white3.move( 0, 3)
    white3.setFill("white")
    white3.draw(win)

    p13 = Point( ( width * 1.2/5), height * 2.9/14)
    circ2 = Circle( p13, 8)
    circ2.setWidth( 0 )
    circ2.setFill("black")
    circ2.draw(win)

    white4 = circ2.clone()
    white4.move( 1, -3)
    white4.setFill( "white")
    white4.draw(win)

    # staff demarcation
    p3 = Point( ( width * 3.15/5), height * 1.7/14)
    p4 = Point( ( width * 3.15/5), height * 3.2/14)
    staff = Line( p3, p4)
    staff.setWidth( 2) 
    staff.draw(win)



def piano():
    # basic box
    p1 = Point((width/5) + 10, height/2.75)
    p2 = Point((width * 4/5) - 10, height/1.6)
    keyboard = Rectangle( p1, p2)
    keyboard.setWidth( 6 )
    keyboard.draw(win)

    # black keys
    for i in range(3):
        p5 = Point(((width/5) + 48) + ( i * 48.5), height/2.75)
        p6 = Point(((width/5) + 70) + ( i * 48.5), height/1.95)
        blacKey = Rectangle( p5, p6)
        blacKey.setFill( "black")
        blacKey.draw(win)

    for i in range(2):
        p7 = Point(((width * 3/5) + 1) + ( i * 48.5), height/2.75)
        p8 = Point(((width * 3/5) + 23) + ( i * 48.5), height/1.95)
        blacKey = Rectangle( p7, p8)
        blacKey.setFill( "black")
        blacKey.draw(win)

    # white keys
    for i in range(7):
        p3 = Point(((width/5) + 10) + ( i * 48.5), height/2.75)
        p4 = Point(((width/5) + 10) + ( i * 48.5), height/1.6)
        key = Line( p3, p4)
        key.setWidth( 6 )
        key.draw(win)
        

def main():
    accents()
    staff()
    notes()
    piano()

    win.getMouse()
    win.close()

main()

Music, Extra-Credit Option

Option 1: One loop for notes, one loop for keys

# hw4x.py
# 111a-bq
# Valerie Cook
# Generate 7 notes on a score not all on the same line with a loop
# and the keys of a piano underneath using a single loop

from graphics import *
import random

def main():
    # define the width and height of the window
    width = 800
    height = 600

    # open a graphics window
    win = GraphWin( "Hw4 - 111a-bq", width, height )

    # draw lines to make the score
    for i in range (5):
        line = Line( Point( 250, (60+20*i) ), Point( 550, (60+20*i)) )
        line.setFill( "black" )
        line.draw( win )
 
    # draw 7 circles placed on the score with a radius of 5
    radius = 10 
    for i in range( 7 ):
        c = Circle( Point( 280+40*i, 60+10*i), radius )

        # make the circle white
        c.setFill( "white" )
        c.setWidth(3)
        c.draw( win )

    # define key points and color of the keys
    #                    X    Y    height color
    whitekey1 = [ 275, 225, 500,   "white" ]
    whitekey2 = [ 325, 275, 500,   "white" ]
    whitekey3 = [ 375, 325, 500,   "white" ]
    whitekey4 = [ 425, 375, 500,   "white" ]
    whitekey5 = [ 475, 425, 500,   "white" ]
    whitekey6 = [ 525, 475, 500,   "white" ]
    whitekey7 = [ 575, 525, 500,   "white" ]
    blackkey1 = [ 290, 260, 390,   "black" ]
    blackkey2 = [ 340, 310, 390,   "black" ]
    blackkey3 = [ 390, 360, 390,   "black" ]
    blackkey4 = [ 490, 460, 390,   "black" ]
    blackkey5 = [ 540, 510, 390,   "black" ]

    # create list of the keys in the order they should be drawn
    keys = [ whitekey1,whitekey2, whitekey3, whitekey4, whitekey5, whitekey6,
             whitekey7, blackkey1, blackkey2, blackkey3, blackkey4, blackkey5 ]
        
    # draw the keys
    for ptA, ptB, ptC, color in keys:
        key = Rectangle(Point(ptA, 250), Point(ptB, ptC))
        key.setFill(color)
        key.setWidth(5)
        key.draw(win)

              
    # wait for the user to click the mouse on the window
    win.getMouse()
    win.close()

main()

Option 2: one loop for everything!

#hw4x.py
#111a-ar
#Gavi Levy Haskell
#draws seven notes on a score and a section of piano keyboard--
#using a single loop--relative to window size (that is, wsize can 
#change and everything else will change proportionally)
#
#the smallest it can go and still be intelligible is about 50

from graphics import *

def main():
    #sets up window
    wsize    = 500
    win      = GraphWin("111a-ar: Fa La Loop", wsize, wsize)
    win.setBackground("white")
    margin   = wsize/10

    #lists for keyboard and staff lines (sets display/not display)
    keyList  = ["black", "black", "black", "white", "black", 
                "black", "white"]
    lineList = ["white", "white", "black", "black", "black", 
                "black", "black"]

    #loop to draw everything
    for i in range(7):

        
        #DRAWS NOTES
        j    = 7 - i #reverses loop direction
        x    = (j - .5)*((wsize - 2*margin)/7) #distance between notes
                                               #horizontally
        h    = j*wsize/50  #distance between notes vertically
        nwid = wsize/100*3 #width of notes
        nhei = wsize/50    #height of notes
        nwi2 = wsize/100   #width of center of notes
        note = Oval( Point(x - nwid + margin, h - nhei + margin),
                     Point(x + nwid + margin, h + nhei + margin) )
        note.setFill("black")
        note.draw(win)
        #prints white middles of notes
        cent = Oval( Point(x - nwi2 + margin, h - nhei + margin),
                     Point(x + nwi2 + margin, h + nhei + margin) )
        cent.setFill("white")
        cent.draw(win)


        #DRAWS STAFF
        k    = 6 - i#draws staff lines bottom to top so
                    #they show "through" the notes
        widl = wsize/25
        line = Line( Point(margin, margin + k*widl),
                     Point(wsize - margin, margin + k*widl) )
        line.setWidth(wsize/250)
        line.setOutline(lineList[i]) #hides unused staff lines
        line.draw(win)


        #DRAWS KEYS

        #key width calculation
        wkey = ((wsize - 2*margin)/7)
        
        #black keys
        bkey = Rectangle( Point(margin + (i + .75)*wkey, 
                                wsize*.5),
                          Point(margin + (i + 1.25)*wkey, 
                                wsize*.75) )
        bkey.setWidth(0)
        bkey.setFill(keyList[i]) #hides unused black keys
        bkey.draw(win)
        
        #white keys
        key  = Rectangle( Point(margin + i*wkey, wsize/2),
                          Point(margin + (i + 1)*wkey, 
                                wsize - margin) )
        key.setWidth(wsize/50)
        key.draw(win)




    win.getMouse()
    win.close()
                     
main()