Mar-08-2019, 10:41 AM
Hey guys.. I need short hint:
I want to update my matplotlib plot after the user enters a number in Entry widget and hint <Return>.
I can create a default plot with default values, but somehow the graph does not update after changing the number and hitting <Return> again.
To check, if the bind works, I've created the printEntry() method. It will be called after calling the method to plot the graph. And this works!
Any suggestions ???
Thx you in advance.....
Here my code:
I want to update my matplotlib plot after the user enters a number in Entry widget and hint <Return>.
I can create a default plot with default values, but somehow the graph does not update after changing the number and hitting <Return> again.
To check, if the bind works, I've created the printEntry() method. It will be called after calling the method to plot the graph. And this works!
Any suggestions ???
Thx you in advance.....
Here my code:
try: import Tkinter as tk except ImportError: import tkinter as tk try: import ttk py3 = False except ImportError: import tkinter.ttk as ttk py3 = True import numpy as np import matplotlib matplotlib.use("TkAgg") from matplotlib.figure import Figure from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg def init(top, gui, *args, **kwargs): global w, top_level, root w = gui top_level = top root = top def destroy_window(): # Function which closes the window. global top_level top_level.destroy() top_level = None def vp_start_gui(): '''Starting point when module is the main routine.''' global val, w, root root = tk.Tk() top = Toplevel1 (root) init(root, top) root.mainloop() class Toplevel1: def __init__(self, top=None): self.style = ttk.Style() self.style.configure('.',font="TkDefaultFont") top.geometry("826x862+639+123") top.title("interactive plot") self.TLabel1 = ttk.Label(top) self.TLabel1.place(relx=0.024, rely=0.023, height=24, width=83) self.TLabel1.configure(relief='flat') self.TLabel1.configure(text='''Input value''') ## Frame 1 ############################################# self.Frame1 = tk.Frame(top) self.Frame1.place(relx=0.012, rely=0.058, relheight=0.102 , relwidth=0.975) self.Frame1.configure(relief='groove') self.Frame1.configure(borderwidth="2") self.Frame1.configure(highlightcolor="black") self.Frame1.configure(width=805) self.Entry1_1 = tk.Entry(self.Frame1) self.Entry1_1.place(relx=0.025, rely=0.114,height=35, relwidth=0.124) self.Entry1_1.configure(highlightcolor="black") self.Entry1_1.configure(selectforeground="black") self.Entry1_1.insert(0,1) self.Entry1_1.bind("<Return>", self.matplotCanvas) ########################################################## ## Frame 2 ############################################# self.TLabel1_11 = ttk.Label(top) self.TLabel1_11.place(relx=0.024, rely=0.174, height=24, width=83) self.TLabel1_11.configure(relief='flat') self.TLabel1_11.configure(text='''Plot''') self.Frame2 = tk.Frame(top) self.Frame2.place(relx=0.012, rely=0.209, relheight=0.58, relwidth=0.969) self.Frame2.configure(relief='groove') self.Frame2.configure(borderwidth="2") self.Frame2.configure(relief='groove') self.Frame2.configure(highlightcolor="black") self.Frame2.configure(width=805) ########################################################### self.TButton_close = ttk.Button(top) self.TButton_close.place(relx=0.86, rely=0.951, height=25, width=96) self.TButton_close.configure(command=destroy_window) self.TButton_close.configure(takefocus="") self.TButton_close.configure(text='''Close''') self.matplotCanvas() def matplotCanvas(self, *args): x = np.linspace(0,0.05,num=500) y = float(self.Entry1_1.get())*x**2 self.printEntry() f = Figure(figsize = (5,5), dpi=100) a = f.add_subplot(111) a.clear() a.plot(x,y) a.grid(True) canvas = FigureCanvasTkAgg(f, self.Frame2) canvas.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=True) def printEntry(self, *args): print(float(self.Entry1_1.get())) if __name__ == '__main__': vp_start_gui()