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# -*- coding: utf-8 -*-
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import tkinter as tk
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from tkinter import ttk
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from tkinter import Toplevel
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import random
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import time
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import matplotlib.pyplot as plt
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from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
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class EnvironmentMonitorApp:
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def __init__(self, root):
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self.root = root
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self.root.title("环境监测数据展示")
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self.setup_ui()
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self.data_records = [] # 保存所有监测记录
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self.plot_window = None # 初始化图表窗口变量
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self.figure = None # 初始化图表figure变量
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self.canvas = None # 初始化图表canvas变量
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self.axs = None # 初始化子图变量
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self.root.after(5000, self.update_data_and_display) # 每5秒更新一次数据
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# 设置matplotlib的字体以支持中文显示
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plt.rcParams['font.sans-serif'] = ['SimHei'] # 用来正常显示中文标签
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plt.rcParams['axes.unicode_minus'] = False # 用来正常显示负号
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def setup_ui(self):
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# 调整窗口大小以适应更多数据
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self.root.geometry("800x600") # 或根据实际需要调整
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self.treeview = ttk.Treeview(self.root, columns=("序号", "温度", "湿度", "光照强度"), show="headings")
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self.treeview.column("序号", width=50, anchor=tk.CENTER)
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self.treeview.column("温度", width=100, anchor=tk.CENTER)
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self.treeview.column("湿度", width=100, anchor=tk.CENTER)
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self.treeview.column("光照强度", width=120, anchor=tk.CENTER)
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self.treeview.heading("序号", text="序号")
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self.treeview.heading("温度", text="温度")
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self.treeview.heading("湿度", text="湿度")
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self.treeview.heading("光照强度", text="光照强度")
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self.treeview.pack(expand=True, fill=tk.BOTH, padx=10, pady=10) # 让Treeview自适应填充空间
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self.plot_button = ttk.Button(self.root, text="查看走势图", command=self.show_plot_window)
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self.plot_button.pack(pady=10) # 也可以根据需要调整按钮的位置
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def simulate_data(self):
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self.temperature = random.uniform(-15, 45)#18-25
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self.humidity = random.uniform(0, 100)#30-60
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self.light_intensity = random.randint(100, 1000)#300-500
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self.data_records.append({
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"序号": len(self.data_records) + 1,
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"温度": self.temperature,
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"湿度": self.humidity,
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"光照强度": self.light_intensity
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})
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self.update_treeview()
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if self.plot_window and self.figure and self.canvas:
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self.update_plots()
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def update_treeview(self):
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# 更新表格数据，每行包含一条完整记录
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self.treeview.delete(*self.treeview.get_children())
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for record in self.data_records:
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self.treeview.insert("", tk.END, values=(
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record["序号"],
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f"{record['温度']:.2f} °C",
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f"{record['湿度']:.2f}%",
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f"{record['光照强度']} lux"
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))
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def update_data_and_display(self):
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self.simulate_data()
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self.root.after(5000, self.update_data_and_display)
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def on_plot_window_close(self):
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self.plot_window.destroy()
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self.plot_window = None # 关闭窗口后重置plot_window为None，以便下次能重新创建
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def show_plot_window(self):
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if not self.plot_window:
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self.plot_window = Toplevel(self.root)
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self.plot_window.protocol("WM_DELETE_WINDOW", self.on_plot_window_close) # 添加关闭窗口的回调
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self.plot_window.title("环境数据走势图")
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self.figure, self.axs = plt.subplots(3, 1, figsize=(6, 8), sharex=True)
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self.figure.suptitle('环境数据实时走势图')
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self.axs[0].set_title('温度变化')
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self.axs[1].set_title('湿度变化')
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self.axs[2].set_title('光照强度变化')
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for ax in self.axs:
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ax.legend()
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ax.grid(True)
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self.canvas = FigureCanvasTkAgg(self.figure, master=self.plot_window)
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self.canvas.draw()
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self.canvas.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=1)
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def update_plots(self):
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for ax, key in zip(self.axs, ["温度", "湿度", "光照强度"]):
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ax.clear() # 清除旧的图表
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ax.set_title(f'{key}变化') # 设置子图标题
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ax.plot([r['序号'] for r in self.data_records], [r[key] for r in self.data_records], label=key)
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ax.legend()
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ax.grid(True)
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self.canvas.draw_idle() # 更新图表而不重新绘制整个画布
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def main():
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root = tk.Tk()
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app = EnvironmentMonitorApp(root)
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root.mainloop()
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if __name__ == "__main__":
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main() |
