diff --git a/measurementGD.py b/measurementGD.py
index b6e614e..d1da7d3 100644
--- a/measurementGD.py
+++ b/measurementGD.py
@@ -5,13 +5,20 @@
 import datetime
 import threading
 import time
-import winsound
 from abc import abstractmethod
 
+import cv2
 import numpy as np
 
 from gdx import gdx
 
+disp = np.zeros((600, 1200, 3)) + 0.2
+cv2.imshow("disp", disp)
+cv2.waitKey(1)
+x = 0
+lx = x
+ly = 0
+
 
 class DataWorker(threading.Thread):
     def __init__(self, out_filename=""):
@@ -49,6 +56,17 @@
         self._start = time.perf_counter()
         while self._running:
             measurements = self.read()
+            print(measurements[0])
+            global x, disp, lx, ly
+            x += 2
+            if x >= 1200:
+                x = 0
+                disp = np.zeros((600, 1200, 3)) + 0.2
+            y = int(-measurements[0] * 50 + 500)
+            cv2.line(disp, (lx, ly), (x, y), (0, 1.0, 1.0), 2)
+            ly = y
+            lx = x
+            # cv2.circle(disp, (x, y), 3, (0, 1.0, 1.0), 2)
             elapse = time.perf_counter() - self._start
             current = self._start_time + datetime.timedelta(seconds=elapse)
             measurements.insert(0, current.strftime("%H:%M:%S.%f"))
@@ -104,16 +122,20 @@
 
     # Wait for stop
     print("measurement start.")
-    winsound.Beep(1000, 200)
-    recode_dulation = 30  # sec
-    for i in range(recode_dulation):
-        time.sleep(1)
-        print(i + 1, "/", recode_dulation, "sec")
-    # input("Press ENTER to stop")
-    print("measurement end.")
-    winsound.Beep(1000, 150)
-    time.sleep(0.15)
-    winsound.Beep(1000, 150)
+    while 1:
+        cv2.imshow("disp", disp)
+        cv2.waitKey(1)
+
+    # winsound.Beep(1000, 200)
+    # recode_dulation = 5  # sec
+    # for i in range(recode_dulation):
+    #     time.sleep(1)
+    #     print(i + 1, "/", recode_dulation, "sec")
+    # # input("Press ENTER to stop")
+    # print("measurement end.")
+    # winsound.Beep(1000, 150)
+    # time.sleep(0.15)
+    # winsound.Beep(1000, 150)
 
     # Closing
-    godirect_worker.stop()
+    # godirect_worker.stop()