From 6e46a56ea44390580068850e6b26d8ba6cbf44da Mon Sep 17 00:00:00 2001
From: Théo de la Hogue
Date: Thu, 21 Apr 2022 00:18:04 +0200
Subject: Fixing fixation identification

---
 src/argaze/GazeFeatures.py                         | 13 +++++++++++++
 src/argaze/utils/export_tobii_segment_fixations.py | 20 +++++++++-----------
 2 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/src/argaze/GazeFeatures.py b/src/argaze/GazeFeatures.py
index 6cdca71..e0c3e73 100644
--- a/src/argaze/GazeFeatures.py
+++ b/src/argaze/GazeFeatures.py
@@ -59,6 +59,19 @@ class FixationIdentifier():
     def __next__(self):
         raise NotImplementedError('__next__() method not implemented')
 
+    def identify(self):
+
+        fixations = GazeFeatures.TimeStampedFixations()
+
+        for ts, item in self:
+
+            if item == None:
+                continue
+
+            fixations[ts] = item
+
+        return fixations
+
 class DispersionBasedFixationIdentifier(FixationIdentifier):
     """Implementation of the I-DT algorithm as described in:
         
diff --git a/src/argaze/utils/export_tobii_segment_fixations.py b/src/argaze/utils/export_tobii_segment_fixations.py
index f0a8a4d..7fbdf50 100644
--- a/src/argaze/utils/export_tobii_segment_fixations.py
+++ b/src/argaze/utils/export_tobii_segment_fixations.py
@@ -32,11 +32,11 @@ def main():
                 os.makedirs(os.path.dirname(args.output))
                 print(f'{os.path.dirname(args.output)} folder created')
 
-            fixations_filepath = f'{args.output}/fixations.json'
+            fixations_filepath = f'{args.output}/fixations.csv'
 
         else:
 
-            fixations_filepath = f'{args.segment_path}/fixations.json'
+            fixations_filepath = f'{args.segment_path}/fixations.csv'
 
         # Load a tobii segment
         tobii_segment = TobiiEntities.TobiiSegment(args.segment_path, int(args.time_range[0] * 1000000), int(args.time_range[1] * 1000000) if args.time_range[1] != None else None)
@@ -66,7 +66,7 @@ def main():
 
         # Start fixation identification
         fixation_analyser = GazeFeatures.DispersionBasedFixationIdentifier(generic_ts_gaze_positions, args.dispersion_threshold, args.duration_threshold)
-        ts_fixations = GazeFeatures.TimeStampedFixations()
+        fixations = GazeFeatures.TimeStampedFixations()
 
         # Initialise progress bar
         MiscFeatures.printProgressBar(0, int(tobii_segment_video.get_duration()/1000), prefix = 'Progress:', suffix = 'Complete', length = 100)
@@ -76,18 +76,16 @@ def main():
             if item == None:
                 continue
 
-            if item.get_type() == 'Fixation':
+            fixations[ts] = item
 
-                ts_fixations[ts] = item
+            # Update Progress Bar
+            progress = ts - int(args.time_range[0] * 1000)
+            MiscFeatures.printProgressBar(progress, int(tobii_segment_video.get_duration()/1000), prefix = 'Progress:', suffix = 'Complete', length = 100)
 
-                # Update Progress Bar
-                progress = ts - int(args.time_range[0] * 1000)
-                MiscFeatures.printProgressBar(progress, int(tobii_segment_video.get_duration()/1000), prefix = 'Progress:', suffix = 'Complete', length = 100)
-
-        print(f'\n{len(ts_fixations)} fixations found')
+        print(f'\n{len(fixations)} fixations found')
 
         # Export fixations analysis results
-        ts_fixations.export_as_json(fixations_filepath)
+        fixations.export_as_csv(fixations_filepath)
 
         print(f'Fixations saved into {fixations_filepath}')
 
-- 
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