diff --git a/src/analysis.py b/src/analysis.py
index f370b0b..8139267 100644
--- a/src/analysis.py
+++ b/src/analysis.py
@@ -13,6 +13,9 @@
 from pyulog.core import ULog
 from pyqtgraph.Qt import QtCore, QtGui
 import pyqtgraph as pg
+from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
+from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar
+
 
 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 
@@ -338,9 +341,11 @@ def animation_update(self):
             start, end = self.ROI_region.getRegion() 
             t = self.current_time + start
             # emit data
+
             indexes = list(map(self.getIndex, [self.time_stamp_position, self.time_stamp_attitude, self.time_stamp_output], [t, t, t]))
             state_data = [self.position_history[indexes[0]], 
                           self.attitude_history[indexes[1]], self.output_history[indexes[2]]]
+
             self.quadrotorStateChanged.emit(state_data)
             # update slider
             self.time_slider.setValue(int(dV * (self.current_time + start - self.time_range[0])))
@@ -354,9 +359,11 @@ def animation_update(self):
             t = self.current_time + self.time_range[0]
             self.time_slider.setValue(int(dV * self.current_time)) 
             # update quadrotor position and attitude and motor speed
+
             indexes = list(map(self.getIndex, [self.time_stamp_position, self.time_stamp_attitude, self.time_stamp_output], [t, t, t]))
             state_data = [self.position_history[indexes[0]], 
                           self.attitude_history[indexes[1]], self.output_history[indexes[2]]]
+
             self.quadrotorStateChanged.emit(state_data)
             # update vLine pos
             self.vLine.setPos(t)
@@ -669,6 +676,13 @@ def __init__(self,  loading_widget,  parent=None,  *args,  **kwargs):
         self.dialog.hide()
         self.loading_widget = loading_widget
         self.loading_widget.loadFinished.connect(self.callback_close)
+
+
+        #self.connect(self.lineedit, SIGNAL("returnProcessed()"), self.updateUi)
+        #self.lineedit.returnPressed.connect(self.updateUi)
+
+        #self..connect(self.loading_widget,QtCore.SIGNAL('loadFinished(bool)'),self.callback_close)
+
     
     def run(self):
         self.dialog.setText('Loading...')
diff --git a/src/widgets.py b/src/widgets.py
index a67cfef..24168c7 100644
--- a/src/widgets.py
+++ b/src/widgets.py
@@ -7,6 +7,13 @@
 from objloader import WFObject
 import numpy as np
 
+
+//from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
+from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar
+
+
+
+
 try:
     from OpenGL.GL import *
     from OpenGL.GLUT import *