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Python Tkinter | Moving objects using Canvas.move() method
  • Difficulty Level : Easy
  • Last Updated : 18 Jun, 2019

Canvas class of Tkinter supports a functions which is used to move objects from one position to another in any canvas or tkinter toplevel.

Syntax: Canvas.move(canvas_object, x, y)

canvas_object is any valid image or drawing created with the help of Canvas class. To know how to create object using Canvas class take reference of this.
x is horizontal distance from upper-left corner.
y is vertical distance from upper-left corner.

We will use class to see the working of move() method.

Class parameters-

Data members used:

Member functions used:

Widgets used: Canvas

Tkinter method used:

Below is the Python implementation:

# imports every file form tkinter and tkinter.ttk
from tkinter import *
from tkinter.ttk import * 
class GFG:
    def __init__(self, master = None):
        self.master = master
        # to take care movement in x direction
        self.x = 1
        # to take care movement in y direction
        self.y = 0
        # canvas object to create shape
        self.canvas = Canvas(master)
        # creating rectangle
        self.rectangle = self.canvas.create_rectangle(
                         5, 5, 25, 25, fill = "black")
        # calling class's movement method to 
        # move the rectangle
    def movement(self):
        # This is where the move() method is called
        # This moves the rectangle to x, y coordinates
        self.canvas.move(self.rectangle, self.x, self.y)
        self.canvas.after(100, self.movement)
    # for motion in negative x direction
    def left(self, event):
        self.x = -5
        self.y = 0
    # for motion in positive x direction
    def right(self, event):
        self.x = 5
        self.y = 0
    # for motion in positive y direction
    def up(self, event):
        self.x = 0
        self.y = -5
    # for motion in negative y direction
    def down(self, event):
        self.x = 0
        self.y = 5
if __name__ == "__main__":
    # object of class Tk, resposible for creating
    # a tkinter toplevel window
    master = Tk()
    gfg = GFG(master)
    # This will bind arrow keys to the tkinter
    # toplevel which will navigate the image or drawing
    master.bind("<KeyPress-Left>", lambda e: gfg.left(e))
    master.bind("<KeyPress-Right>", lambda e: gfg.right(e))
    master.bind("<KeyPress-Up>", lambda e: gfg.up(e))
    master.bind("<KeyPress-Down>", lambda e: gfg.down(e))
    # Infnite loop breaks only by interrupt


Extra print statements are used in above code to show the proper working of move() method. keysym keyword (Tkinter reserved) is used to print which keyboard key is pressed.

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