From 0354377903fbc8a828b5735b2d25e1c5bc02c768 Mon Sep 17 00:00:00 2001
From: Théo de la Hogue
Date: Wed, 21 Jun 2023 08:29:15 +0200
Subject: Reframing scene once.

---
 src/argaze/utils/demo_ar_features_run.py | 38 ++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/src/argaze/utils/demo_ar_features_run.py b/src/argaze/utils/demo_ar_features_run.py
index 0fa275b..ec42338 100644
--- a/src/argaze/utils/demo_ar_features_run.py
+++ b/src/argaze/utils/demo_ar_features_run.py
@@ -10,7 +10,7 @@ __license__ = "BSD"
 import argparse
 import os
 
-from argaze import ArFeatures, GazeFeatures
+from argaze import ArFeatures
 
 import cv2
 import numpy
@@ -31,17 +31,16 @@ def main():
     demo_environment_filepath = os.path.join(current_directory, 'demo_environment/setup.json')
     demo_environment = ArFeatures.ArEnvironment.from_json(demo_environment_filepath)
 
-    print('ArEnvironment:\n', demo_environment)
+    # Create a window to display AR environment
+    cv2.namedWindow(demo_environment.name, cv2.WINDOW_AUTOSIZE)
 
     # Access to main AR scene
     demo_scene = demo_environment.scenes["AR Scene Demo"]
 
-    # Create a window to display AR environment
-    cv2.namedWindow(demo_environment.name, cv2.WINDOW_AUTOSIZE)
-
-    # Prepare screen AOI projection
+    # Reframe AR scene to a scene bounded by screen AOI
     screen_name = "Screen"
     screen_size = (320, 240)
+    screen_scene = demo_scene.orthogonal_projection.reframe(screen_name, screen_size)
 
     # Create a window to display screen projection
     cv2.namedWindow(screen_name, cv2.WINDOW_AUTOSIZE)
@@ -69,12 +68,13 @@ def main():
         # Capture frames
         while video_capture.isOpened():
 
+            # Read video frame
             success, video_frame = video_capture.read()
 
-            if success:
+            # Create screen frame
+            screen_frame = numpy.zeros((240, 320, 3)).astype(numpy.uint8)
 
-                # Create screen frame
-                screen_frame = numpy.zeros((240, 320, 3)).astype(numpy.uint8)
+            if success:
 
                 # Detect markers
                 demo_environment.aruco_detector.detect_markers(video_frame)
@@ -103,12 +103,13 @@ def main():
                     # Draw AOI scene projection
                     aoi_scene_projection.draw(video_frame, color=(255, 255, 255))
 
-                    # Reframe AOI scene to screen AOI
-                    screen_projection = aoi_scene_projection.reframe("Screen", screen_size)
+                    # Project pointer into screen
+                    if aoi_scene_projection[screen_name].contains_point(pointer):
 
-                    # Draw screen projection
-                    screen_projection.draw(screen_frame, color=(255, 255, 255))
+                        inner_x, inner_y = aoi_scene_projection[screen_name].clockwise().inner_axis(pointer)
 
+                        cv2.circle(screen_frame, (int(inner_x * screen_size[0]), int(inner_y * screen_size[1])), 5, (255, 255, 255), -1)
+                    
                 # Catch exceptions raised by estimate_pose and project methods
                 except (ArFeatures.PoseEstimationFailed, ArFeatures.SceneProjectionFailed) as e:
 
@@ -118,14 +119,17 @@ def main():
                 # Draw video frame
                 cv2.imshow(demo_environment.name, video_frame)
 
-                # Draw screen frame
-                cv2.imshow(screen_name, screen_frame)
+            # Draw screen scene
+            screen_scene.draw(screen_frame, color=(255, 255, 255))
+
+            # Draw screen frame
+            cv2.imshow(screen_name, screen_frame)
 
-            # Stop calibration by pressing 'Esc' key
+            # Stop by pressing 'Esc' key
             if cv2.waitKey(10) == 27:
                 break
 
-    # Stop calibration on 'ctrl+C' interruption
+    # Stop on 'ctrl+C' interruption
     except KeyboardInterrupt:
         pass
 
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