Adding a new abstract UnknownGazeMovement.

1 files changed, 18 insertions, 3 deletions

diff --git a/src/argaze/GazeFeatures.py b/src/argaze/GazeFeatures.py
index 4d2ef80..e5dfdf0 100644
--- a/src/argaze/GazeFeatures.py
+++ b/src/argaze/GazeFeatures.py
@@ -150,6 +150,13 @@ class Saccade(GazeMovement):
 
         super().__post_init__()
 
+class UnknownGazeMovement(GazeMovement):
+    """Define abstract unknown gaze movement."""
+
+    def __post_init__(self):
+
+        super().__post_init__()
+
 TimeStampedGazeMovementsType = TypeVar('TimeStampedGazeMovements', bound="TimeStampedGazeMovements")
 # Type definition for type annotation convenience
 
@@ -159,7 +166,7 @@ class TimeStampedGazeMovements(DataStructures.TimeStampedBuffer):
     def __setitem__(self, key, value: GazeMovement):
         """Force value to inherit from GazeMovement."""
 
-        assert(type(value).__bases__[0] == Fixation or type(value).__bases__[0] == Saccade)
+        assert(type(value).__bases__[0] == Fixation or type(value).__bases__[0] == Saccade or type(value).__bases__[0] == UnknownGazeMovement)
 
         super().__setitem__(key, value)
 
@@ -225,6 +232,7 @@ class GazeMovementIdentifier():
 
         ts_fixations = TimeStampedGazeMovements()
         ts_saccades = TimeStampedGazeMovements()
+        ts_unknown = TimeStampedGazeMovements()
         ts_status = TimeStampedGazeStatus()
 
         for gaze_movement in self(ts_gaze_positions):
@@ -250,9 +258,16 @@ class GazeMovementIdentifier():
                 ts_status[end_ts] = GazeStatus.from_position(end_position, 'Saccade', len(ts_saccades))
 
             else:
-                continue
 
-        return ts_fixations, ts_saccades, ts_status
+                start_ts, start_position = gaze_movement.positions.first
+
+                ts_unknown[start_ts] = gaze_movement
+
+                for ts, position in gaze_movement.positions.items():
+
+                    ts_status[ts] = GazeStatus.from_position(position, 'UnknownGazeMovement', len(ts_unknown))
+
+        return ts_fixations, ts_saccades, ts_unknown, ts_status
 
 @dataclass
 class VisualScanStep():