Question

In Python, gonna need this ASAP: Complete the draw_pattern(a_canvas, colours_dictionary, pattern_list, size, left, top) function. This function is passed SIX parameters: the Canvas object, a colours dictionary, a list of String elements, and followed by three integer parameters. The function draws a grid of coloured rectangles inside the canvas area. The left-top position of the grid of coloured rectangles is given by the last two parameter values and the size of each rectangle is given by the size parameter. Once you have completed this function you should see rows of coloured rectangles in the canvas area.

def draw_pattern(a_canvas, colours_dictionary, pattern_list, size, left, top):   
down = top

Answer 1

Function:

#Implementation of draw_pattern method

def draw_pattern(a_canvas, colours_dictionary, pattern_list, size,left, top):

    #Iterate the loop

    for pattern in pattern_list:

        #assign pattern[0] to strValue

        strValue = pattern[0]

        #store the value in requiredcolor

        requiredcolor = colours_dictionary[strValue]

        #assign left to direction

        direction = left

        #assign pattern[1] to intValue

        intValue = pattern[1]

        #Iterate the loop

        for each in range(intValue):

            #call rectangle method through canavas a_canvas

            a_canvas.create_rectangle(direction, top, direction + size, top + size, fill=requiredcolor)

            #calculate direction

            direction = direction + size

        #calcualte top

        top = top + size

Code Image:

Sample Output:

Code to Copy:

from tkinter import *

import random

#Implementation of draw_pattern method

def draw_pattern(a_canvas, colours_dictionary, pattern_list, size,left, top):

    #Iterate the loop

    for pattern in pattern_list:

        #assign pattern[0] to strValue

        strValue = pattern[0]

        #store the value in requiredcolor

        requiredcolor = colours_dictionary[strValue]

        #assign left to direction

        direction = left

        #assign pattern[1] to intValue

        intValue = pattern[1]

        #Iterate the loop

        for each in range(intValue):

            #call rectangle method through canavas a_canvas

            a_canvas.create_rectangle(direction, top, direction + size, top + size, fill=requiredcolor)

            #calculate direction

            direction = direction + size

        #calcualte top

        top = top + size

#Implementation of main function

def main():

    #Declare size and initlaize with 10

    size=10

    #assign 2*size to left

    left = 2*size

    top = 2*size

    #Declare pattern_list

    pattern_list = [('4', 3), ('1', 10), ('2', 10), ('3', 10), ('4', 3)]

    #Declare colours_dictionary as dictionary

    colours_dictionary = {"1": "red", "2": "blue", "3": "green", "4": "yellow"}

   #calculate length of pattern_list and assign to number_of_rows

    number_of_rows = len(pattern_list)

    #calculate length of pattern_list[0] and assign to number_of_columns

    number_of_columns = len(pattern_list[0])

    #calculate canvas_width

    canvas_width = size*number_of_columns + size*4

    #calcualte canvas_height

    canvas_height = number_of_rows*size + size*4

    #call Tk()

    userInterface = Tk()

    stringGeometr = str(canvas_width) + "x" +str(canvas_height)+"+10+20"

    #call geometry method

    userInterface.geometry(stringGeometr)

    a_canvas = Canvas(userInterface)

    #set the background color as white for canvas

    a_canvas.config(background="white")

    #call pack method through canvas a_canvas

  a_canvas.pack(fill='both', expand=True)

    #call draw_pattern method

    draw_pattern(a_canvas,colours_dictionary,pattern_list,size,left,top)

    #call mainloop method

    userInterface.mainloop()

   

#call main method

main()

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