This time, we will continue to draw with the Turtle module. Next, we will teach how to draw various notes
A quarter note
effect:
Code explanation:
1. Import module
from turtle import *
2. set a property
pensize(4)
3. Draw a circle
begin_fill() circle(40,450) end_fill()
4. Draw line segments
fd(180)
5. Hide the brush and keep the window displayed
ht() done()
Final code
from turtle import * pensize(4) begin_fill() circle(40,450) end_fill() fd(180) ht() done()
Difficulty: ※ x1
2, An octave
effect:
Code explanation:
Add three lines of code to the code with quarter notes above, and the final code is:
from turtle import * pensize(4) begin_fill() circle(40,450) end_fill() fd(180) right(180) # Added code circle(80,40) # Added code circle(-80,45) # Added code ht() done()
Difficulty: ※ x1
3, Two quavers
effect:
Code explanation:
1. Import module
from turtle import *
2. set a property
pensize(6)
3. Draw a circle
begin_fill() circle(40,450) end_fill()
4. Draw three segments
fd(180) right(75) fd(180) right(105) fd(180)
5. Draw a circle
begin_fill() circle(-40) end_fill()
6. Hide the brush and keep the window displayed
ht() done()
Final code:
from turtle import * pensize(6) begin_fill() circle(40,450) end_fill() fd(180) right(75) fd(180) right(105) fd(180) begin_fill() circle(-40) end_fill() ht() done()
Difficulty: ※ x1 5
4, Triplet
effect:
Code explanation:
1. Import module
from turtle import *
2. set a property
pensize(6)
3. Draw the first circle
begin_fill() circle(40,450) end_fill()
4. Draw three segments
fd(180) right(75) p=pos() fd(180) right(105) p2=pos() fd(180)
5. Draw the second circle
begin_fill() circle(-40) end_fill()
6. Move to the end of the second line segment just drawn
pu() goto(p2) pd()
7. Draw two line segments
left(105) fd(180) right(105) p3=pos() fd(180)
8. Draw the third circle
begin_fill() circle(-40) end_fill()
Difficulties start:
9. First, move to the position of 20 pixels above the end point of the line segment above the first circle, and then draw a 40 pixel line segment upward as the left boundary of the 3-tone
10. Then, move to the midpoint of the line segment, draw a 160 pixel line segment parallel to the oblique line segment below, leaving a 20 pixel position from the midpoint of the three notes.
11. Draw the number "3".
12. According to step 10, first lift the pen to leave a position 20 pixels away from the midpoint, and then drop the pen to draw a 160 pixel line segment parallel to the oblique line segment below.
13. Draw the right boundary according to step 9. The method is not much different from step 9, and will not be explained in detail here.
The difficulty is over. The codes of difficult parts are as follows:
pu()
goto(p)
seth(90)
fd(20)
pd()
fd(40)
bk(20)
right(75)
fd(150)
pu()
fd(30)
write("3",align="center",font=("Dengxian",35,"bold"))
fd(30)
pd()
fd(150)
left(75)
fd(20)
bk(40)14. Finally, hide the brush and keep the window displayed.
ht() done()
Final code:
from turtle import *
pensize(6)
begin_fill()
circle(40,450)
end_fill()
fd(180)
right(75)
p=pos()
fd(180)
right(105)
p2=pos()
fd(180)
begin_fill()
circle(-40)
end_fill()
pu()
goto(p2)
pd()
left(105)
fd(180)
right(105)
p3=pos()
fd(180)
begin_fill()
circle(-40)
end_fill()
pu()
goto(p)
seth(90)
fd(20)
pd()
fd(40)
bk(20)
right(75)
fd(150)
pu()
fd(30)
write("3",align="center",font=("Dengxian",35,"bold"))
fd(30)
pd()
fd(150)
left(75)
fd(20)
bk(40)
ht()
done()Difficulty: ※ x2 5
5, Sixteenth note
effect:
Code explanation:
1. Import module
from turtle import *
2. According to the code for drawing octaves, make some changes on this basis. For details, see the notes in the code:
pensize(6) begin_fill() circle(40,450) end_fill() fd(180) right(75) fd(180) right(105) fd(30) # Move 30 pixels first p=pos() # Obtain the position coordinates. Later, you can draw a line segment with more 16 diaeresis than 8 diaeresis fd(150) # Move another 150 pixels to fill 180 pixels begin_fill() circle(-40) end_fill()
3. Move to the position of variable p and draw the extra line segments.
pu() goto(p) pd() right(75) fd(180)
4. Hide the brush and keep the window displayed
ht() done()
Final code:
from turtle import * pensize(6) begin_fill() circle(40,450) end_fill() fd(180) right(75) fd(180) right(105) fd(30) p=pos() fd(150) begin_fill() circle(-40) end_fill() pu() goto(p) pd() right(75) fd(180) ht() done()
Difficulty: ※ x1 25
6, A sixteenth note
effect:
Code explanation:
1. Import module
from turtle import *
2. set a property
pensize(6)
3. Draw a circle
begin_fill() circle(40,450) end_fill()
4. Draw segments and obtain coordinates
fd(140) p=pos() fd(40) right(180)
5. Draw an arc
circle(80,40) circle(-80,45)
6. Draw the second curve
pu() goto(p) pd() seth(-90) circle(80,40) circle(-80,45)
7. Hide the brush and keep the window displayed
ht() done()
Final code:
from turtle import * pensize(6) begin_fill() circle(40,450) end_fill() fd(140) p=pos() fd(40) right(180) circle(80,40) circle(-80,45) pu() goto(p) pd() seth(-90) circle(80,40) circle(-80,45) ht() done()
Difficulty: ※ x1 twenty-five
7, Octant rest
effect:
Code explanation
1. Import module
from turtle import *
2. set a property
pensize(6)
3. Draw a circle
begin_fill() circle(20) end_fill()
4. Draw arc
circle(90,40)
5. Draw line segments
seth(-115) fd(120)
6. Hide the brush and keep the window displayed
ht() done()
Final code:
from turtle import * pensize(6) begin_fill() circle(20) end_fill() circle(90,40) seth(-115) fd(120) ht() done()
Difficulty: ※ x1
8, Dichotomy rest
effect:
Code explanation:
1. Import module
from turtle import *
2. set a property
pensize(6)
3. Draw the line segment on the left of the rectangle
fd(30)
4. Draw a rectangle
begin_fill()
for i in range(2):
fd(90)
left(90)
fd(10)
left(90)
end_fill()5. Move to the lower right corner of the rectangle
fd(90)
6. Draw the line segment to the right of the rectangle
fd(30)
7. Hide the brush and keep the window displayed
ht() done()
Final code:
from turtle import *
pensize(6)
fd(30)
begin_fill()
for i in range(2):
fd(90)
left(90)
fd(10)
left(90)
end_fill()
fd(90)
fd(30)
ht()
done()Difficulty: ※ x1 25
Extension: full stop
effect:
The code is similar to the binary rest. On this basis, modify the left in the loop to right. The code is as follows:
from turtle import *
pensize(6)
fd(30)
begin_fill()
for i in range(2):
fd(90)
right(90)
fd(10)
right(90)
end_fill()
fd(90)
fd(30)
ht()
done()Difficulty: ※ x1 twenty-five
9, Sixteen minute rest
effect:
Code explanation:
1. Import module
from turtle import *
2. Set properties
pensize(6)
3. Draw a circle
begin_fill() circle(20) end_fill()
4. Draw arcs and segments
circle(90,40) h=heading() seth(-115) fd(80) p=pos()
5. Draw an arc
seth(h) circle(90,-40)
6. Draw a circle
begin_fill() circle(20) end_fill()
7. Set the end point of the previous segment as the start point and continue to draw the segment
pu() goto(p) pd() seth(-115) fd(80)
8. Hide the brush and keep the window displayed
ht() done()
Final code:
from turtle import * pensize(6) begin_fill() circle(20) end_fill() circle(90,40) h=heading() seth(-115) fd(80) p=pos() seth(h) circle(90,-40) begin_fill() circle(20) end_fill() pu() goto(p) pd() seth(-115) fd(80) ht() done()
Difficulty: ※ x2
10, Treble clef
effect:
It is composed of multiple arcs and line segments, which will not be explained in detail here. The final code is:
from turtle import * pensize(5) seth(115) circle(-30,220) circle(-50,220) fd(70) circle(50,100) seth(-145) circle(50,58) fd(200) circle(-30,180) begin_fill() circle(-10) end_fill() ht() done()
Difficulty: ※ x3
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