Turtle python graphics

[Y0sh1]

Hello,

I need help, i need to write a function using turtle in pyhon.
That takes in entry(x0,y0,D)
x0 et y0 are the first coordinate points in this case they are (x0=10, y0=20)
and D is a list of all the coordinate points this function needs to trace.

D = [{'X': -15, 'Y': 29}, {'X': -22, 'Y': 13}, {'X': -18, 'Y': -2}, {'X': -19, 'Y': -7}, {'X': -17, 'Y': -17}, {'X': -7, 'Y': -15}, {'X': -4, 'Y': -29}, {'X': 6, 'Y': -21}, {'X': 20, 'Y': -17}, {'X': 37, 'Y': -27}, {'X': 45, 'Y': -26}, {'X': 60, 'Y': 48}, {'X': 18, 'Y': 29}, {'X': 11, 'Y': 30}, {'X': -2, 'Y': 30}, {'X': -22, 'Y': 24}, {'X': -22, 'Y': 4}, {'X': -22, 'Y': 2}, {'X': -20, 'Y': -10}, {'X': -8, 'Y': -33}]

from turtle import *


def draw_figure(x0,y0,D):
    for i in list(range(len(D))):
        forward(D.values())
        left(D.values())

print(draw_figure(10,20,D))

my program doesn't work :

Error:
'list' object has no attribute 'values'

i have tried to use only:

for i in list(range(len(D))):
forward('X')
left('Y')

But it still doesn't works.


thank you

[DPaul]

I have this working (looks like an erratic line) but i am unsure that I understand what you need.
1) Is putting the points in a dictionary essential to the setup?
(I put them simply in a 2D list)
2) Turtle moves forward with the X value and left with the Y value?
Or do you want it to jump from x,y to x,y, that's something else.

Paul

[Yoriz]

Please see [Basic] Never use "for i in range(len(sequence)):"

[Y0sh1]

I have this working (looks like an erratic line) but i am unsure that I understand what you need.
1) Is putting the points in a dictionary essential to the setup?
(I put them simply in a 2D list)
2) Turtle moves forward with the X value and left with the Y value?
Or do you want it to jump from x,y to x,y, that's something else.

Paul

1) yes the poinds needs to be put in a dictionnary, we don't have the right to modify it.
2) this dictionnary assembles all the displacement the turtle will do; in the end we need to have a heart.

---

I have this working (looks like an erratic line) but i am unsure that I understand what you need.
1) Is putting the points in a dictionary essential to the setup?
(I put them simply in a 2D list)
2) Turtle moves forward with the X value and left with the Y value?
Or do you want it to jump from x,y to x,y, that's something else.

Paul

1) yes the poinds needs to be put in a dictionnary, we don't have the right to modify it.
2) this dictionnary assembles all the displacement the turtle will do; in the end we need to have a heart.

I've edited my code:

def draw_figure(x0,y0,D):
    tracer(True)
    penup()
    goto(x0,y0)
    pendown()

begin_fill()
for i in D:
        pen.right('X') #to access the index of X
        pen.left('Y')
end_fill()

print(draw_figure(10,20,D1))

Error:
for i in D:
NameError: name 'D' is not defined

---

I have this working (looks like an erratic line) but i am unsure that I understand what you need.
1) Is putting the points in a dictionary essential to the setup?
(I put them simply in a 2D list)
2) Turtle moves forward with the X value and left with the Y value?
Or do you want it to jump from x,y to x,y, that's something else.

Paul

1) yes the poinds needs to be put in a dictionnary, we don't have the right to modify it.
2) this dictionnary assembles all the displacement the turtle will do; in the end we need to have a heart.

I've edited my code:

def draw_figure(x0,y0,D):
    trace(True)
    penup()
    goto(x0,y0)
    pendown()

begin_fill()
for i in D:
        pen.right('X') #to access the index of X
        pen.left('Y')
end_fill()

print(draw_figure(10,20,D1))

Error:
for i in D:
NameError: name 'D' is not defined

[DPaul]

Are you sure the coordinates draw a heart ? :-)
It works , but i get the start of a heart +/- ...
What i did:
D is now a list of dictionaries.
"For coord in D:" is what Yoriz says.
Each coord has 2 dictionary keys ['X'] and ['Y'], that give simple access to the values.
After that, piece of cake.
Also, do not include D in your def call, as D is visible from within the def.
Paul

[Y0sh1]

Are you sure the coordinates draw a heart ? :-)
It works , but i get the start of a heart +/- ...
What i did:
D is now a list of dictionaries.
"For coord in D:" is what Yoriz says.
Each coord has 2 dictionary keys ['X'] and ['Y'], that give simple access to the values.
After that, piece of cake.
Also, do not include D in your def call, as D is visible from within the def.
Paul

yes it needs to draw an ugly heart ; maybe i didn't give it entirely ;
D1 = [{'X': -15, 'Y': 29}, {'X': -22, 'Y': 13}, {'X': -18, 'Y': -2}, {'X': -19, 'Y': -7}, {'X': -17, 'Y': -17}, {'X': -7, 'Y': -15}, {'X': -4, 'Y': -29}, {'X': 6, 'Y': -21}, {'X': 20, 'Y': -17}, {'X': 37, 'Y': -27}, {'X': 45, 'Y': -26}, {'X': 60, 'Y': 48}, {'X': 18, 'Y': 29}, {'X': 11, 'Y': 30}, {'X': -2, 'Y': 30}, {'X': -22, 'Y': 24}, {'X': -22, 'Y': 4}, {'X': -22, 'Y': 2}, {'X': -20, 'Y': -10}, {'X': -8, 'Y': -33}]

it still doesn't work
def draw_figure(x0,y0):
    tracer(True)
    penup()
    goto(x0,y0)
    pendown()

begin_fill()
for coord in D:
        pen.right('X') #to access the index of X
        pen.left('Y')
end_fill()

print(draw_figure(10,20,D1))

[DPaul]

Try this, and perhaps add the filling etc later:

from turtle import *
  
def draw_figure(x0,y0):
    goto(x0,y0)
    for coord in D:
       forward(coord['X'])
       left(coord['Y'])

print(draw_figure(10,20))

Paul