1 files changed, 5 insertions, 5 deletions
diff --git a/src/argaze/GazeAnalysis/DispersionThresholdIdentification.py b/src/argaze/GazeAnalysis/DispersionThresholdIdentification.py
index 13529e7..2b89cf6 100644
--- a/src/argaze/GazeAnalysis/DispersionThresholdIdentification.py
+++ b/src/argaze/GazeAnalysis/DispersionThresholdIdentification.py
@@ -100,8 +100,8 @@ class Saccade(GazeFeatures.Saccade):
         # Draw line if required
         if line_color is not None:
 
-            start_position = self.positions[0]
-            last_position = self.positions[-1]
+            start_position = self[0]
+            last_position = self[-1]
 
             cv2.line(image, (int(start_position[0]), int(start_position[1])), (int(last_position[0]), int(last_position[1])), line_color, 2)
 
@@ -142,12 +142,12 @@ class GazeMovementIdentifier(GazeFeatures.GazeMovementIdentifier):
     
     @DataFeatures.PipelineStepMethod
     def identify(self, timestamp: int|float, gaze_position, terminate=False) -> GazeMovementType:
-
+        
         # Ignore empty gaze position
         if not gaze_position:
 
             return GazeFeatures.GazeMovement() if not terminate else self.current_fixation.finish()
-            
+        
         # Check if too much time elapsed since last valid gaze position
         if self.__valid_positions:
 
@@ -171,7 +171,7 @@ class GazeMovementIdentifier(GazeFeatures.GazeMovementIdentifier):
 
         # Store gaze positions until a minimal duration 
         self.__valid_positions.append(gaze_position)
-
+        
         # Once the minimal duration is reached
         if self.__valid_positions.duration >= self.__duration_min_threshold: