[FIXED] remove the number from the y axis

Issue

I am trying to edit my axis's graphic, but It is not working when I use plt.yticks(\[\]). The program is showing me the values yet. Could you help me to edit, please? Maybe the problem is because I am using canvas, I tried to put yticks(\[\]) inside him but even so not working.

Below my code:

import tkinter as tk
import matplotlib.pyplot as plt
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib import animation
import random

# Create the Tkinter window
root = tk.Tk()
root.geometry('400x100')

fig1, b1 = plt.subplots(figsize=(10, 0.5), dpi = 80,)
b1 = fig1.add_subplot(111)


fig2, b2 = plt.subplots(figsize= (10, 0.5), dpi = 80)
b2 = fig2.add_subplot(111)



def grafico_1 (i):


    global b1
    global nume
    global valu
    global fig1
    global y_fix
    global x

    x = []
    y_fix = []
    ws = ['WIRE']

    for valu in range (1, 6):
        nume = random.randint(1, 10)
        x.append(nume)
    #print(x)
   

    #Primeira camada do grafico 
    if int(x[0]) < 3:
        y_fix.append(int(x[0]), )
        #print(f'Lista de y_n ,e {y_n}')
        b1.barh(ws, int(x[0]), color = 'green')
        

    if int(x[0]) >= 3 and int(x[0]) < 6:
        y_fix.append(x[0])
        b1.barh(ws, int(x[0]), color = 'yellow' )
        

    if int(x[0]) >= 6:
        y_fix.append(x[0])
        b1.barh(ws, int(x[0]), color= 'red' )
        

    #Segunda camada:
    for c in x[1:]:

        if int(c) < 3 :

            b1.barh(ws, int(c), color= 'green', left=y_fix)
            y_fix.append(int(c))
            jump = sum(y_fix)
            y_fix = []
            y_fix.append(jump)
            
            
        if int(c) > 3 and int(c) < 5:
        
            b1.barh(ws, int(c), color='yellow', left= y_fix)
            y_fix.append(int(c))
            jump = sum(y_fix)
            y_fix = []
            y_fix.append(jump)
            

        if int(c) >= 5:
            b1.barh(ws, int(c), color='red', left= y_fix)
            y_fix.append(int(c))
            jump = sum(y_fix)
            y_fix = []
            y_fix.append(jump) 
            
def grafico_2 (i2):


    global b2
    global nume2
    global valu2
    global fig2
    global y_fix2
    global x2

    x2 = []
    y_fix2 = []
    ws2 = ['line 2']

    for valu2 in range (1, 6):
        nume2 = random.randint(1, 10)
        x2.append(nume2)
    #print(f'Grafico 2 {x2}')
   

    #Primeira camada do grafico 
    if int(x2[0]) < 3:
        y_fix2.append(int(x2[0]))
        #print(f'Lista de y_n ,e {y_n}')
        b2.barh(ws2, int(x2[0]), color = 'green')

    if int(x2[0]) >= 3 and int(x2[0]) < 6:
        y_fix2.append(x2[0])
        b2.barh(ws2, int(x2[0]), color = 'yellow' )

    if int(x2[0]) >= 6:
        y_fix2.append(x2[0])
        b2.barh(ws2, int(x2[0]), color= 'red' )

    #Segunda camada:
    for c2 in x2[1:]:

        if int(c2) < 3 :

            b2.barh(ws2, int(c2), color= 'green', left=y_fix2)
            y_fix2.append(int(c2))
            jump2 = sum(y_fix2)
            y_fix2 = []
            y_fix2.append(jump2)
            
        if int(c2) > 3 and int(c2) < 5:
        
            b2.barh(ws2, int(c2), color='yellow', left= y_fix2)
            y_fix2.append(int(c2))
            jump2 = sum(y_fix2)
            y_fix2 = []
            y_fix2.append(jump2)

        if int(c2) >= 5:
            b2.barh(ws2, int(c2), color='red', left= y_fix2)
            y_fix2.append(int(c2))
            jump2 = sum(y_fix2)
            y_fix2 = []
            y_fix2.append(jump2)


    #plt.show()



ani1 = animation.FuncAnimation(fig1, grafico_1, interval = 3000, frames=100)
ani2 = animation.FuncAnimation(fig2, grafico_2, interval = 3000, frames=100)

# Embed the figures into Tkinter using FigureCanvasTkAgg
canvas1 = FigureCanvasTkAgg(fig1, master=root)
canvas1.get_tk_widget().place(x= 300, y= 460)


canvas2 = FigureCanvasTkAgg(fig2, master=root)
canvas2.get_tk_widget().place(x= 300, y = 530)

root.mainloop()

Create graphic without any numbers in the y axis

Solution

Here's how you can address the issue:

1. Set the y-ticks for each subplot directly: You need to call the set_yticks() method on the specific axes objects you want to modify (b1 and b2 in your case).

2. Ensure consistent axes usage: It looks like you're redefining b1 and b2 after creating them. When you use b1 = fig1.add_subplot(111), it's not necessary to create fig1, b1 = plt.subplots() beforehand; you can directly create the subplot.

Here an updated code example:

import tkinter as tk
import matplotlib.pyplot as plt
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib import animation
import random

# Create the Tkinter window
root = tk.Tk()
root.geometry('400x100')

fig1 = plt.Figure(figsize=(10, 0.5), dpi=80)
b1 = fig1.add_subplot(111)

fig2 = plt.Figure(figsize=(10, 0.5), dpi=80)
b2 = fig2.add_subplot(111)

# ... [rest of your code remains the same until the grafico_1 and grafico_2 functions]

def grafico_1(i):
    global b1
    # ... [rest of your code for grafico_1]

    # Clear previous axes and set y-ticks to an empty list
    b1.clear()
    b1.set_yticks([])

    # ... [rest of your plotting code for grafico_1]

def grafico_2(i2):
    global b2
    # ... [rest of your code for grafico_2]

    # Clear previous axes and set y-ticks to an empty list
    b2.clear()
    b2.set_yticks([])

    # ... [rest of your plotting code for grafico_2]

# ... [rest of your code for animations and canvas]

root.mainloop()

Answered By - Jake Zappin