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cos.py

@@ -0,0 +1,67 @@
+
+import pylab as pl
+import tkinter as tk
+
+from pylab import linspace,pi,plot,cos,show
+from os.path import basename,splitext
+from tkinter import *
+
+
+
+class Application(tk.Tk):
+    name = basename(splitext(basename(__file__.capitalize()))[0])
+    name = "Graf Cos"
+
+    def __init__(self):
+
+        super().__init__(className=self.name)
+
+        self.title(self.name)
+        self.lbl = tk.Label(self, text="Graf Cos")
+        self.lbl.pack()
+
+
+        self.var_entryPerioda = tk.IntVar()
+        self.var_entryFrekvence = tk.IntVar()
+        self.var_entryAmplituda = tk.IntVar()  
+
+        #zadání periody
+        self.lbl2 = tk.Label(self, text="Počet period")
+        self.lbl2.pack()
+        self.entryPerioda  = tk.Entry(self, textvariable = self.var_entryPerioda)
+        self.entryPerioda.pack()
+        #zadání frekvence
+        self.lbl3 = tk.Label(self, text="Frekvence")
+        self.lbl3.pack()
+        self.entryFrekvence  = tk.Entry(self, textvariable = self.var_entryFrekvence)
+        self.entryFrekvence.pack()
+        #zadání amplitudy
+        self.lbl4 = tk.Label(self, text="Amplituda")
+        self.lbl4.pack()
+        self.entryAmplituda  = tk.Entry(self, textvariable = self.var_entryAmplituda)
+        self.entryAmplituda.pack()
+
+
+        self.btnGraf = tk.Button(self, text="Vytvoř graf", command=self.graf)
+        self.btnGraf.pack()
+        self.btn = tk.Button(self, text="Quit", command=self.quit)
+        self.btn.pack()
+
+    def quit(self, event=None):
+        super().quit()
+
+    def graf(self):
+        self.f = self.var_entryFrekvence.get()
+        self.a = self.var_entryAmplituda.get()
+        self.p = self.var_entryPerioda.get()
+        x = pl.linspace(0, self.p/self.f, self.f*10000)
+        y = self.a * (pl.cos(2*pi*self.f*x ))
+        pl.plot(x,y)
+        pl.title("Graf cos")
+        pl.xlabel("t[s]")
+        pl.ylabel("U[V],I[A],P[W]")
+        pl.show()
+
+
+app = Application()
+app.mainloop()

main.py

@@ -1,5 +1,11 @@
 #!/usr/bin/env python3
 
+import matplotlib.pyplot as plt
+
+with open('soubor-ux.txt', 'r') as f:
+    lines = f.readlines()
+    x = [float(line.split()[0]) for line in lines]
+    y = [float(line.split()[1]) for line in lines]
+plt.plot(x ,y)
+plt.show()
 
-with open("soubor.txt", "r") as f:
-    pass