Testing and documenting ExploitExploreRatio class.

4 files changed, 34 insertions, 7 deletions

diff --git a/docs/user_guide/gaze_analysis/scan_path.md b/docs/user_guide/gaze_analysis/scan_path.md
index 67600ac..c84c879 100644
--- a/docs/user_guide/gaze_analysis/scan_path.md
+++ b/docs/user_guide/gaze_analysis/scan_path.md
@@ -21,6 +21,7 @@ Some scan path analysis are available thanks to [GazeAnalysis](/argaze/#argaze.G
 
 * [K-Coefficient](/argaze/#argaze.GazeAnalysis.KCoefficient)
 * [Nearest Neighbor Index](/argaze/#argaze.GazeAnalysis.NearestNeighborIndex)
+* [Exploit Explore Ratio](/argaze/#argaze.GazeAnalysis.ExploitExploreRatio)
 
 ### Example
 
diff --git a/src/argaze.test/GazeAnalysis/ExploitExploreRatio.py b/src/argaze.test/GazeAnalysis/ExploitExploreRatio.py
index febfec7..9cfcc0b 100644
--- a/src/argaze.test/GazeAnalysis/ExploitExploreRatio.py
+++ b/src/argaze.test/GazeAnalysis/ExploitExploreRatio.py
@@ -30,10 +30,8 @@ class TestScanPathAnalyzer(unittest.TestCase):
 
         xxr = xxr_analyzer.analyze(scan_path)
 
-        print(xxr)
-
-        # Check exploit explore ratio
-        self.assertGreaterEqual(xxr, 0)
+        # Check exploit explore ratio: it should greater than 1 because of build_scan_path
+        self.assertGreaterEqual(xxr, 1.)
 
 if __name__ == '__main__':
 
diff --git a/src/argaze/GazeAnalysis/ExploitExploreRatio.py b/src/argaze/GazeAnalysis/ExploitExploreRatio.py
index eba8ec2..c5d2392 100644
--- a/src/argaze/GazeAnalysis/ExploitExploreRatio.py
+++ b/src/argaze/GazeAnalysis/ExploitExploreRatio.py
@@ -31,8 +31,12 @@ class ScanPathAnalyzer(GazeFeatures.ScanPathAnalyzer):
 
         pass
 
-    def analyze(self, scan_path: GazeFeatures.ScanPathType, long_fixation_duration_threshold: float = 0.) -> float:
-        """Analyze scan path."""
+    def analyze(self, scan_path: GazeFeatures.ScanPathType, short_fixation_duration_threshold: float = 0.) -> float:
+        """Analyze scan path.
+
+        Parameters:
+            short_fixation_duration_threshold: time below which a fixation is considered to be short and so as exploratory.
+        """
 
         assert(len(scan_path) > 1)
 
@@ -42,7 +46,7 @@ class ScanPathAnalyzer(GazeFeatures.ScanPathAnalyzer):
 
         for scan_step in scan_path:
 
-            if scan_step.first_fixation.duration > long_fixation_duration_threshold:
+            if scan_step.first_fixation.duration > short_fixation_duration_threshold:
 
                 long_fixations_durations.append(scan_step.first_fixation.duration)
 
diff --git a/src/argaze/utils/demo_gaze_features_run.py b/src/argaze/utils/demo_gaze_features_run.py
index cbaf720..65952ec 100644
--- a/src/argaze/utils/demo_gaze_features_run.py
+++ b/src/argaze/utils/demo_gaze_features_run.py
@@ -107,6 +107,10 @@ def main():
     nni_analysis = 0
     enable_nni_analysis = False
 
+    xxr_analyzer = ExploitExploreRatio.ScanPathAnalyzer()
+    xxr_analysis = 0.
+    enable_xxr_analysis = False
+
     gaze_movement_lock = threading.Lock()
 
     # Init timestamp
@@ -125,6 +129,7 @@ def main():
         nonlocal ngram_analysis
         nonlocal entropy_analysis
         nonlocal nni_analysis
+        nonlocal xxr_analysis
 
         # Edit millisecond timestamp
         data_ts = int((time.time() - start_ts) * 1e3)
@@ -222,6 +227,10 @@ def main():
 
                         nni_analysis = nni_analyzer.analyze(raw_scan_path, window_size)
 
+                    if enable_xxr_analysis:
+
+                        xxr_analysis = xxr_analyzer.analyze(raw_scan_path)
+
                 # Append saccade to aoi scan path
                 aoi_scan_path.append_saccade(data_ts, gaze_movement)
 
@@ -290,6 +299,11 @@ def main():
                 on_off = 'on' if enable_nni_analysis else 'off'
                 display_hide = 'hide' if enable_nni_analysis else 'display'
                 cv2.putText(aoi_matrix, f'Nearest neighbor index: {on_off} (Press \'i\' key to {display_hide})', (20, 320), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 255) if enable_nni_analysis else (255, 255, 255), 1, cv2.LINE_AA)
+                
+                # Write xxr help
+                on_off = 'on' if enable_xxr_analysis else 'off'
+                display_hide = 'hide' if enable_xxr_analysis else 'display'
+                cv2.putText(aoi_matrix, f'Exploit Explore Ratio: {on_off} (Press \'x\' key to {display_hide})', (20, 360), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 255) if enable_xxr_analysis else (255, 255, 255), 1, cv2.LINE_AA)
 
                 # Check fixation identification
                 if gaze_movement_identifier[identification_mode].current_fixation != None:
@@ -403,6 +417,11 @@ def main():
 
                     cv2.putText(aoi_matrix, f'Nearest neighbor index: {nni_analysis:.3f}', (20, window_size[1]-320), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 255), 1, cv2.LINE_AA)
 
+                # Write XXR
+                if enable_xxr_analysis:
+
+                    cv2.putText(aoi_matrix, f'Exploit explore ratio: {xxr_analysis:.3f}', (20, window_size[1]-320), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 255), 1, cv2.LINE_AA)
+
             # Unlock gaze movement identification
             gaze_movement_lock.release()
 
@@ -468,6 +487,11 @@ def main():
 
                 enable_nni_analysis = not enable_nni_analysis
 
+            # Enable XXR analysis with 'x' key 
+            if key_pressed == 120:
+
+                enable_xxr_analysis = not enable_xxr_analysis
+
             # Stop calibration by pressing 'Esc' key
             if key_pressed == 27:
                 break