파이썬 소프트웨어: 거리와 속도와 시간

import tkinter as tk

from tkinter import ttk

import matplotlib.pyplot as plt

from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg

def calculate():

    try:

        distance = float(distance_entry.get()) if distance_entry.get() else None

        speed = float(speed_entry.get()) if speed_entry.get() else None

        time = float(time_entry.get()) if time_entry.get() else None

        if distance and speed:

            time = distance / speed

            time_entry.delete(0, tk.END)

            time_entry.insert(0, f"{time:.2f}")

        elif distance and time:

            speed = distance / time

            speed_entry.delete(0, tk.END)

            speed_entry.insert(0, f"{speed:.2f}")

        elif speed and time:

            distance = speed * time

            distance_entry.delete(0, tk.END)

            distance_entry.insert(0, f"{distance:.2f}")

        else:

            result_label.config(text="Fill at least two fields!")

            return

        plot_graph(distance, speed, time)

        result_label.config(text="Calculation complete!")

    except ValueError:

        result_label.config(text="Please enter valid numbers!")

def plot_graph(distance, speed, time):

    fig.clear()

    ax = fig.add_subplot(111)

    labels = ['Distance (km)', 'Speed (km/h)', 'Time (h)']

    values = [distance, speed, time]

    ax.bar(labels, values)

    ax.set_title("Distance-Speed-Time Graph")

    ax.set_ylabel("Values")

    canvas.draw()

# Create the main window

root = tk.Tk()

root.title("Distance-Speed-Time Calculator")

# Input fields

frame = ttk.Frame(root)

frame.pack(pady=10, padx=10)

distance_label = ttk.Label(frame, text="Distance (km):")

distance_label.grid(row=0, column=0, padx=5, pady=5)

distance_entry = ttk.Entry(frame)

distance_entry.grid(row=0, column=1, padx=5, pady=5)

speed_label = ttk.Label(frame, text="Speed (km/h):")

speed_label.grid(row=1, column=0, padx=5, pady=5)

speed_entry = ttk.Entry(frame)

speed_entry.grid(row=1, column=1, padx=5, pady=5)

time_label = ttk.Label(frame, text="Time (h):")

time_label.grid(row=2, column=0, padx=5, pady=5)

time_entry = ttk.Entry(frame)

time_entry.grid(row=2, column=1, padx=5, pady=5)

calculate_button = ttk.Button(frame, text="Calculate", command=calculate)

calculate_button.grid(row=3, column=0, columnspan=2, pady=10)

result_label = ttk.Label(frame, text="")

result_label.grid(row=4, column=0, columnspan=2, pady=5)

# Graph area

fig = plt.Figure(figsize=(5, 4), dpi=100)

canvas = FigureCanvasTkAgg(fig, master=root)

canvas_widget = canvas.get_tk_widget()

canvas_widget.pack(pady=10)

root.mainloop()