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@infinite1oop(H T)

ろうとるがPythonを扱う、、（その27：tkinter+matplotlibでRealtimeグラフ表示（その2））

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pingのRealtime表示（今度はOK?）

「ろうとるがPythonを扱う、、（その26：tkinter+matplotlibでRealtimeグラフ表示（その1））」の続編。pingの結果表示もグラフ表示も、tkinterの1つのWindowsに収めることとした。

結果

ping7_OK.png
前回とは異なり、複数回「Start」を押しても大丈夫であった（グラフは毎回クリアされる）。

ソースコード

Library import

## Library
from tkinter import * 
import tkinter.ttk as ttk
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg 
from matplotlib.figure import Figure 
from datetime import datetime
import time 
import logging
import logging.handlers
import threading 
from icmplib import ping

ここは解説なし。

変数など

## For plotting # グラフで使用する位置情報
xpos = []
ypos = []

## ping parameters  # pingパラメーター（＋デフォルト値）
param = [' Address ', ' Count ', ' Interval ', ' Timeout ', ' Size ']
param_default = ['1.1.1.1', '5', '1', '3', '64']
		# Address, Count, Interval(s), Timeout(s), Payload size(byte)
p_width = [20, 8, 5, 5, 5] # width for parameter input box
header = 'Count, Time, Address, Timeout, Payload, RTT(ms)/Down'

メイン

ここの解説は小生の次の過去投稿を参照してほしいです。

#####  Main  #####
root = Tk()
root.title("Execution of Ping")
root.geometry("800x650")

## Making frames
frm1 = Frame(root)
frm1.label = [Label(frm1, text=param[i]) for i in range(len(param))]
[frm1.label[i].grid(row=0, column=i*2) for i in range(len(param))]
frm1.text = [Entry(frm1, width=p_width[i]) for i in range(len(p_width))]
[frm1.text[i].grid(row=0, column=(i*2+1)) for i in range(len(p_width))]
frm1.dummy = Label(frm1, text='    ')
frm1.dummy.grid(row=0, column=len(param)+len(p_width))
frm1.Btn = ttk.Button(frm1, text='Start', style='W.TButton', command=lambda:start_clk()) # "ttk" is necessary
frm1.Btn.grid(row=0, column=len(param)+len(p_width)+1)
frm2 = Frame(root)
frm2.label = Label(frm2, text=header+'\t\t\t\t\t', font=("Courier New", 10))
frm2.label.pack()
frm3 = Frame(root)
frm3.prt = Text(frm3, font=("Courier New", 11), height=10)
frm3.ysc = Scrollbar(frm3, orient=VERTICAL, command=frm3.prt.yview)
frm3.ysc.pack(side=RIGHT, fill="y")
frm3.prt["yscrollcommand"] = frm3.ysc.set
frm3.prt.config(state='disabled')
frm3.prt.pack()
frm4 = Frame(root, bd = 10)
fig = Figure() 
ax = fig.add_subplot(111) 
ax.set_xlabel("Time (s)") 
ax.set_ylabel("Response Time (ms)") 
graph = FigureCanvasTkAgg(fig, master=frm4)
graph.get_tk_widget().pack()

frm1.pack()
frm2.pack()
frm3.pack()
frm4.pack()

## For log
log = logging.getLogger('ping')
log.setLevel(logging.DEBUG)
fh = logging.FileHandler('ping_'+'{:%Y%m%d_%H%M%S}.csv'.format(datetime.now()))
log.addHandler(fh)
log.debug(header)

## Loop
root.mainloop()

少々コメント。

  • Window内の各フレーム設定
    • パラメータ入力
    • ヘッダ
    • ping結果をリアルタイムで「文字表示」
    • ping結果をリアルタイムで「グラフ表示」
  • 「Start」ボタンクリック時の関数定義（start_clk()）
  • 結果をログファイルに出力する初期設定

「Start」ボタンクリック時にCallされる関数

## Start of start_clk()
def start_clk(): 
    global num, elapsed, dest, repetition, wait, timeout_val, payload
    num = 0
    elapsed = 0
    xpos.clear()
    ypos.clear()
    ax.cla()
    ax.grid() 
    input = [frm1.text[i].get() for i in range(len(param))]
    for i in range(len(param)):
        if input[i] == "":
            input[i] = param_default[i]
    try:
        dest = input[0]
        repetition = int(input[1])
        wait = float(input[2])
        timeout_val = float(input[3])
        payload = int(input[4])
    except:
        dest = param_default[0]
        repetition = int(param_default[1])
        wait = float(param_default[2])
        timeout_val = float(param_default[3])
        payload = int(param_default[4])
    frm1.Btn['text'] = 'Cannot'
    frm1.Btn['state'] = 'disabled'
    call_ping()
## End of start_clk()
  • 初期化（回数、経過時間、グラフ関連）
  • 入力値の取得（またはデフォルト値の利用）およびエラーチェック
  • 終了まで、再度クリックできないよう、ボタンを無効化

「global」を多数利用しているが、今回のプログラムでは、この方がわかりやすいと考えた。

ping呼び出し手続きおよび結果のグラフ化

## Start of call_ping()
def call_ping():
    global num, elapsed, dest, repetition, wait, timeout_val, payload
    ax.set_xlabel("Time (s)") 
    ax.set_ylabel("Response Time (ms)") 
    ax.plot(xpos, ypos, color='C0', linestyle='-')
    graph.draw() 
    if num >= repetition:
        frm1.Btn['text'] = 'Start'
        frm1.Btn['state'] = 'normal'
        return
    threading.Thread(target=exec_ping).start()
    elapsed += wait
    num += 1
    root.after(int(wait*1000), call_ping) # argument of call_ping must not exist???
## End of call_ping()
  • ping実行スレッド（exec_ping）呼び出し
  • グラフへのプロット（ax.plot）およびDraw（graph.draw）
  • 規定回数を超えたら、ボタンを有効化およびReturn
  • wait後に再度本関数呼び出し（root.after）
    • できるだけwait時間が正確になるようafterの呼び出し場所に留意

ping実行および結果の文字表示

## Start of show_result()
def show_result(data):
    frm3.prt.config(state='normal')
    frm3.prt.insert(END, data)
    frm3.prt.config(state='disabled')
    frm3.prt.see('end')
## End of show_result()

## Start of exec_ping()
def exec_ping():
    global num, elapsed, dest, repetition, wait, timeout_val, payload
    start_time = datetime.now().strftime("%y%m%d_%H%M%S_%f")
    try:
        output = str(num+1)+', '+start_time+', '+dest+', '+str(timeout_val)+', '+str(payload)+', '
        result = ping(dest, count=1, interval=1, timeout=timeout_val, payload_size=payload)
        if result.is_alive:
            output += str(result.avg_rtt)
            xpos.append(elapsed)
            ypos.append(result.avg_rtt)
        else:
            output += 'Down'
            xpos.append(elapsed)
            ypos.append(0) # Todo: Should be considered
    except:
        output = 'Error'
    log.debug(output)
    output += '\n'
    show_result(output)
## End of exec_ping()
  • 現時刻取得
  • ping実行
  • 実行結果（result.avg_rtt）をグラフ用変数へ格納（ypos.append）
    • 経過時間も格納（xpos.append）
  • ログへの出力
  • 結果の文字表示（show_result）

全体

## Library
from tkinter import * 
import tkinter.ttk as ttk
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg 
from matplotlib.figure import Figure 
from datetime import datetime
import time 
import logging
import logging.handlers
import threading 
from icmplib import ping

## For plotting
xpos = []
ypos = []

## ping parameters
param = [' Address ', ' Count ', ' Interval ', ' Timeout ', ' Size ']
param_default = ['1.1.1.1', '5', '1', '3', '64']
		# Address, Count, Interval(s), Timeout(s), Payload size(byte)
p_width = [20, 8, 5, 5, 5] # width for parameter input box
header = 'Count, Time, Address, Timeout, Payload, RTT(ms)/Down'

## Start of show_result()
def show_result(data):
    frm3.prt.config(state='normal')
    frm3.prt.insert(END, data)
    frm3.prt.config(state='disabled')
    frm3.prt.see('end')
## End of show_result()

## Start of exec_ping()
def exec_ping():
    global num, elapsed, dest, repetition, wait, timeout_val, payload
    start_time = datetime.now().strftime("%y%m%d_%H%M%S_%f")
    try:
        output = str(num+1)+', '+start_time+', '+dest+', '+str(timeout_val)+', '+str(payload)+', '
        result = ping(dest, count=1, interval=1, timeout=timeout_val, payload_size=payload)
        if result.is_alive:
            output += str(result.avg_rtt)
            xpos.append(elapsed)
            ypos.append(result.avg_rtt)
        else:
            output += 'Down'
            xpos.append(elapsed)
            ypos.append(0) # Todo: Should be considered
    except:
        output = 'Error'
    log.debug(output)
    output += '\n'
    show_result(output)
## End of exec_ping()

## Start of call_ping()
def call_ping():
    global num, elapsed, dest, repetition, wait, timeout_val, payload
    ax.set_xlabel("Time (s)") 
    ax.set_ylabel("Response Time (ms)") 
    ax.plot(xpos, ypos, color='C0', linestyle='-')
    graph.draw() 
    if num >= repetition:
        frm1.Btn['text'] = 'Start'
        frm1.Btn['state'] = 'normal'
        return
    threading.Thread(target=exec_ping).start()
    elapsed += wait
    num += 1
    root.after(int(wait*1000), call_ping) # argument of call_ping must not exist???
## End of call_ping()

## Start of start_clk()
def start_clk(): 
    global num, elapsed, dest, repetition, wait, timeout_val, payload
    num = 0
    elapsed = 0
    xpos.clear()
    ypos.clear()
    ax.cla()
    ax.grid() 
    input = [frm1.text[i].get() for i in range(len(param))]
    for i in range(len(param)):
        if input[i] == "":
            input[i] = param_default[i]
    try:
        dest = input[0]
        repetition = int(input[1])
        wait = float(input[2])
        timeout_val = float(input[3])
        payload = int(input[4])
    except:
        dest = param_default[0]
        repetition = int(param_default[1])
        wait = float(param_default[2])
        timeout_val = float(param_default[3])
        payload = int(param_default[4])
    frm1.Btn['text'] = 'Cannot'
    frm1.Btn['state'] = 'disabled'
    call_ping()
## End of start_clk()

#####  Main  #####
root = Tk()
root.title("Execution of Ping")
root.geometry("800x650")

## Making frames
frm1 = Frame(root)
frm1.label = [Label(frm1, text=param[i]) for i in range(len(param))]
[frm1.label[i].grid(row=0, column=i*2) for i in range(len(param))]
frm1.text = [Entry(frm1, width=p_width[i]) for i in range(len(p_width))]
[frm1.text[i].grid(row=0, column=(i*2+1)) for i in range(len(p_width))]
frm1.dummy = Label(frm1, text='    ')
frm1.dummy.grid(row=0, column=len(param)+len(p_width))
frm1.Btn = ttk.Button(frm1, text='Start', style='W.TButton', command=lambda:start_clk()) # "ttk" is necessary
frm1.Btn.grid(row=0, column=len(param)+len(p_width)+1)
frm2 = Frame(root)
frm2.label = Label(frm2, text=header+'\t\t\t\t\t', font=("Courier New", 10))
frm2.label.pack()
frm3 = Frame(root)
frm3.prt = Text(frm3, font=("Courier New", 11), height=10)
frm3.ysc = Scrollbar(frm3, orient=VERTICAL, command=frm3.prt.yview)
frm3.ysc.pack(side=RIGHT, fill="y")
frm3.prt["yscrollcommand"] = frm3.ysc.set
frm3.prt.config(state='disabled')
frm3.prt.pack()
frm4 = Frame(root, bd = 10)
fig = Figure() 
ax = fig.add_subplot(111) 
ax.set_xlabel("Time (s)") 
ax.set_ylabel("Response Time (ms)") 
graph = FigureCanvasTkAgg(fig, master=frm4)
graph.get_tk_widget().pack()

frm1.pack()
frm2.pack()
frm3.pack()
frm4.pack()

## For log
log = logging.getLogger('ping')
log.setLevel(logging.DEBUG)
fh = logging.FileHandler('ping_'+'{:%Y%m%d_%H%M%S}.csv'.format(datetime.now()))
log.addHandler(fh)
log.debug(header)

## Loop
root.mainloop()

EOF

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