Tuesday, August 11, 2020

Python turtle set start position

I'll give you my solution for starting at the top left of the window and you can adjust it to your needs:

from turtle import Turtle, Screen

TURTLE_SIZE = 20

screen = Screen()

yertle = Turtle(shape="turtle", visible=False)
yertle.penup()
yertle.goto(TURTLE_SIZE/2 - screen.window_width()/2, screen.window_height()/2 - TURTLE_SIZE/2)
yertle.pendown()
yertle.showturtle()

screen.mainloop()

The turtle's first appearance should be at the top left of the window.

Python turtle, change start position:

import turtle
a = turtle.Turtle()      #instantiate a new turtle object called 'a'
a.hideturtle()           #make the turtle invisible
a.penup()                #don't draw when turtle moves
a.goto(-200, -200)       #move the turtle to a location
a.showturtle()           #make the turtle visible
a.pendown()              #draw when the turtle moves
a.goto(50, 50)           #move the turtle to a new location

The turtle becomes visible and starts drawing at position -200, -200 and goes to 50, 50.

Lab Assignment

CCS CS20, Spring 2018

num	ready?	description	assigned	due
lab00	true	Getting Started	Mon 04/02 08:00AM	Fri 04/06 05:00PM
lab01	true	FtoC and CtoF with test cases	Mon 04/02 08:00AM	Fri 04/13 05:00PM
lab02	true	More practice with writing functions test cases	Tue 04/10 12:30PM	Tue 04/17 05:00PM
lab03	true	Even more functions with test cases	Tue 04/17 12:30PM	Tue 04/24 12:30PM
lab04	true	input, scripts, command line arguments	Fri 08/25 11:00AM	Wed 08/30 04:50PM
lab05	true	Accumulator Pattern, more TDD practice	Mon 04/30 08:00AM	Mon 05/07 09:00PM
lab06	true	min/max, index vs. value	Tue 05/01 12:30PM	Thu 05/10 12:30PM
lab07	true	Turtle Graphics: Basic shapes	Thu 05/03 12:30PM	Thu 05/10 12:30PM
lab08	true	2D Lists and Nested for Loops	Tue 05/08 08:00AM	Fri 05/18 11:59PM
lab09	true	Recursion	Thu 05/10 01:00PM	Thu 05/24 11:59PM
lab10	true	Review for Final (optional)	Tue 06/05 12:30PM	Fri 06/08 05:00PM
project01	true	Project-01 Turtle Graphics: Scene from a forest	Thu 05/10 12:30PM	Sun 05/20 11:59PM

num	ready?	description	assigned	due
h00	true	Perkovic Ch1 (Introduction to CS)	Tue 04/17 12:30PM	Wed 04/18 12:00PM
h01	true	Perkovic 2.1, 2.2 (Expr, Vars, Assignment, Strings)	Tue 04/17 12:30PM	Thu 04/19 12:00PM
h02	true	Perkovic 2.3 (Lists, Tuples)	Tue 04/17 12:30PM	Fri 04/20 12:00PM
h03	true	Perkovic 2.4-2.5 (Objects, Classes, types, libraries)	Tue 04/17 12:30PM	Sat 04/21 12:00PM
h04	true	Perkovic 3.1 (Python Programs), 3.2 (Execution Control Structures)	Tue 04/17 12:30PM	Sun 04/22 12:00PM
h05	true	Perkovic 3.3-3.5 (Functions)	Tue 04/17 12:30PM	Mon 04/23 12:00PM
h06	true	Perkovic 4.1-4.2 (Strings, Formatting)	Tue 04/17 12:30PM	Tue 04/24 12:00PM
h07	true	Perkovic 4.3 (Files), 4.4 (Errors and Exceptions)	Thu 05/24 12:30PM	Thu 05/31 12:30PM
h08	true	Perkovic 5.1-5.2 (decision control,accumulators,nested loops)	Thu 05/24 12:30PM	Thu 05/31 12:30PM
h09	true	Perkovic 5.3-5.6 (2-d lists, more on loops)	Thu 05/24 12:30PM	Thu 05/31 12:30PM
h10	true	Perkovic 6.3 (Character Encodings)- 6.4 (Random)	Thu 05/24 12:30PM	Thu 05/31 12:30PM
h11	true	Review (tracing functions)	Thu 05/24 12:30PM	Thu 05/31 12:30PM
h12	true	Perkovic 6.1 (Dictionaries) and 6.2 (Sets)	Thu 05/24 12:30PM	Thu 05/31 12:30PM
h13	true	Perkovic 10.1 (Introduction to Recursion - up to Practice Problem 10.3)	Thu 05/24 12:30PM	Thu 05/31 12:30PM
h14	true	Number Conversions	Thu 05/24 12:30PM	Thu 05/31 12:30PM
ic00	true	CCS CS20 S18 Pair Partner Picking Planning	Tue 04/03 12:30PM	Tue 04/03 02:20PM
ic01	true	Planning your tree for project01	Tue 05/15 12:30PM	Tue 05/15 12:30PM

num	date	description
Lecture 1	Mon 04/03	Orientation to the course
Lecture 2	Wed 04/05	Orientation to the course
Lecture 5	Mon 04/17	work on lab03, catch up on homeworks
Lecture 6	Wed 04/19	Working with JSON files

Sunday, August 9, 2020

TOPICS

https://techwithtim.net/tutorials/

Turtle in python- Trying to get the turtle to move to the mouse click position and print its coordinates

Printing every time you move

https://stackoverflow.com/questions/17864085/turtle-in-python-trying-to-get-the-turtle-to-move-to-the-mouse-click-position-a

https://techwithtim.net/tutorials/python-module-walk-throughs/turtle-module/drawing-with-mouse/

If you want to print every time you move, you should define your own function which will do that as well as tell the turtle to go somewhere. I think this will work because turtle is a singleton.

def gotoandprint(x, y):
    gotoresult = turtle.goto(x, y)
    print(turtle.xcor(), turtle.ycor())
    return gotoresult

screen.onscreenclick(gotoandprint)

import turtle
from turtle import Screen, Turtle

screen = Screen()
t = Turtle("turtle")
t.speed(-1)

def dragging(x, y):  # These parameters will be the mouse position
    t.ondrag(None)
    t.setheading(t.towards(x, y))
    t.goto(x, y)
    t.ondrag(dragging)

def clickRight():
    t.clear()

def main():  # This will run the program
    turtle.listen()
    
    t.ondrag(dragging)  # When we drag the turtle object call dragging
    turtle.onscreenclick(clickRight, 3)

    screen.mainloop()  # This will continue running main() 

main()

python

Wednesday, August 12, 2020

Starting Out with Python Fourth Edition Tony Gaddis

Think Like Scientic

Tuesday, August 11, 2020

Python turtle set start position

Lab Assignment

CCS CS20, Spring 2018

Sunday, August 9, 2020

TOPICS

TOPICS

TOPICS

TOPICS

ython and Java tutorials and guides. By Tech With Tim.

Turtle in python- Trying to get the turtle to move to the mouse click position and print its coordinates

Printing every time you move

Introduction to Keras and TensorFlow for Training Deep Learning Classifiers