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Code: Alles auswählen

from Tkinter import *
import sys
import serial
serial = serial.Serial("COM5", 115200)

#while True:
# input = serial.readline().strip()
class Application(Frame):
    def createWidgets(self):
        self.CAN = Canvas(self, width=370, height=500, background='white')
        self.CAN.pack()
        self.CAN.create_rectangle(10, 10, 60, 50, width = 0, tag = "Sensor 1", fill = "red")
        self.CAN.create_rectangle(70, 10, 120, 60, width = 0, tag = "Sensor 2", fill = "blue")
        self.CAN.create_rectangle(130, 10, 180, 70, width = 0, tag = "label", fill = "green")
        self.CAN.create_rectangle(190, 10, 240, 80, width = 0, tag = "label", fill = "yellow")
        self.CAN.create_rectangle(250, 10, 300, 90, width = 0, tag = "label", fill = "orange")
        self.CAN.create_rectangle(310, 10, 360, 100, width = 0, tag = "label", fill = "black")
        self.CAN.update_idletasks()
       
    def __init__(self, master=None):
        Frame.__init__(self, master)
        self.pack()
        self.createWidgets()

app = Application()
app.mainloop()

Code: Alles auswählen

import Tkinter as tk
import sys
import serial

#serial = serial.Serial("COM5", 115200)

class Application(tk.Frame):

    BAR_XORG = 10
    BAR_YORG = 10
    BAR_WIDTH = 50
    BAR_HEIGHT = 0
    BAR_XGAP = 10
    BAR_ITEMS = (("Sensor-1", "red"), ("Sensor-2", "blue"),
        ("Sensor-3","green"), ("Sensor-4","yellow"))
    BAR_MAX_VALUE = 100

    def __init__(self, master=None):
        tk.Frame.__init__(self, master)
        self.pack()
        self.createWidgets()

    def createWidgets(self):
        self.canvas = tk.Canvas(self, width=370, height=500, background='white')
        self.canvas.pack()

        max_bar_height =  500 - 2 * self.BAR_YORG
        self.bar_yfac = float(max_bar_height) / float(self.BAR_MAX_VALUE)

        xpos = self.BAR_XORG
        ypos = self.BAR_YORG
        for bar_name, bar_color in self.BAR_ITEMS:
            self.canvas.create_rectangle(xpos, ypos, xpos+self.BAR_WIDTH,
                ypos+self.BAR_HEIGHT, tag=bar_name, fill=bar_color, width=0)
            xpos += self.BAR_XGAP + self.BAR_WIDTH

    def update_bar(self, bar_name, bar_data):

        bar_height = bar_data * self.bar_yfac
        x0, y0, x1, y1 = self.canvas.coords(bar_name)
        self.canvas.coords(bar_name, (x0, y0, x1, y0+bar_height))

#--- MODUL-TEST --------------------------------------------------------------#
if __name__ == "__main__":

    def increment_bar_data():
        app.update_bar("Sensor-4", app.test_data)
        if app.test_data < 100.0:
            app.test_data += 5.0
        app.after(100, increment_bar_data)

    app_win = tk.Tk()
    app_win.title("Bar-Display")

    app = Application(app_win)

    app.test_data = 0.0
 
    app.update_bar("Sensor-1", 25.0)
    app.update_bar("Sensor-2", 50.0)
    app.update_bar("Sensor-3", 75.0)
    increment_bar_data()

    app_win.mainloop()