From 6a3c68ec42ae0eb196cea7fe1330d88b8eca322a Mon Sep 17 00:00:00 2001
From: Théo de la Hogue
Date: Wed, 21 Sep 2022 17:03:02 +0200
Subject: Defining raycast and regioncast method and the way to draw them.

---
 src/argaze/AreaOfInterest/AOI2DScene.py | 70 ++++++++++++++++++++-------------
 1 file changed, 42 insertions(+), 28 deletions(-)

diff --git a/src/argaze/AreaOfInterest/AOI2DScene.py b/src/argaze/AreaOfInterest/AOI2DScene.py
index 4537c8e..1faef59 100644
--- a/src/argaze/AreaOfInterest/AOI2DScene.py
+++ b/src/argaze/AreaOfInterest/AOI2DScene.py
@@ -17,39 +17,61 @@ class AOI2DScene(AOIFeatures.AOIScene):
 		# set dimension member
 		self.dimension = 2
 
-	def look_at(self, gaze_position: GazeFeatures.GazePosition):
-		"""Get looked and ignored AOI names."""
+	def draw(self, frame, exclude=[], color=(0, 255, 255)):
+		"""Draw AOI polygons on frame."""
+
+		for name, aoi in self.items():
+
+			if name in exclude:
+				continue
 
-		looked = {}
-		ignored = {}
+			aoi.draw(frame, color)
 
+	def raycast(self, gaze_position):
+		"""Iterate over aoi to know which aoi is looked considering only gaze position value."""
 		for name, aoi in self.items():
 
-			# TODO : use looked_region
-			# looked_region, aoi_ratio, gaze_ratio = aoi2D.looked_region(gaze_position)
+			looked = aoi.looked(gaze_position)
 
-			if aoi.looked():
+			yield name, aoi, looked
 
-				looked[name] = aoi.look_at(gaze_position)
+	def draw_raycast(self, frame, gaze_position, exclude=[], base_color=(0, 0, 255), looked_color=(0, 255, 0)):
+		"""Draw AOIs with their looked status."""
 
-			else:
+		for name, aoi, looked in self.raycast(gaze_position):
 
-				ignored[name] = None
+			if name in exclude:
+				continue
+			
+			color = looked_color if looked else base_color
 
-		return looked, ignored
+			if looked:
 
-	def draw(self, frame, exclude=[], color=(0, 0, 255)):
-		"""Draw AOI polygons on frame."""
+				top_left_corner_pixel = numpy.rint(aoi.clockwise()[0]).astype(int)
+				cv.putText(frame, name, top_left_corner_pixel, cv.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255), 1, cv.LINE_AA)
+
+			# Draw form
+			aoi.draw(frame, color)
+
+	def regioncast(self, gaze_position):
+		"""Iterate over areas to know which aoi is looked considering gaze position value and its accuracy."""
+		for name, aoi in self.items():
+
+			looked_region, aoi_ratio, gaze_ratio = aoi.looked_region(gaze_position)
 
-		for name, aoi2D in self.items():
+			yield name, aoi, looked_region, aoi_ratio, gaze_ratio
+
+	def draw_regioncast(self, frame, gaze_position, exclude=[], base_color=(0, 0, 255), looked_color=(0, 255, 0)):
+		"""Draw AOIs with their looked status and thei looked region."""
+
+		for name, aoi, looked_region, aoi_ratio, gaze_ratio in self.regioncast(gaze_position):
 
 			if name in exclude:
 				continue
-			'''
-			looked_region, aoi_ratio, gaze_ratio = aoi2D.looked_region(gaze_position, gaze_position.accuracy)
-
+			
 			# Draw looked region
-			looked_region.draw(frame, base_color, 4)
+			if aoi_ratio > 0:
+				looked_region.draw(frame, base_color, 4)
 
 			# TODO : Externalise this criteria
 			looked = aoi_ratio > 0.25 or gaze_ratio > 0.5
@@ -58,19 +80,11 @@ class AOI2DScene(AOIFeatures.AOIScene):
 
 			if looked:
 
-				top_left_corner_pixel = numpy.rint(aoi2D.clockwise()[0]).astype(int)
+				top_left_corner_pixel = numpy.rint(aoi.clockwise()[0]).astype(int)
 				cv.putText(frame, name, top_left_corner_pixel, cv.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255), 1, cv.LINE_AA)
 
 				# Draw looked region
 				looked_region.draw(frame, looked_color, 4)
 
-				# 4 corners aoi only
-				if len(aoi2D) == 4:
-					looked_pixel = aoi2D.looked_pixel(aoi2D.look_at(gaze_position))
-					cv.circle(frame, looked_pixel, 2, color, -1)
-			'''
 			# Draw form
-			aoi2D.draw(frame, color)
-
-
-				
+			aoi.draw(frame, color)
-- 
cgit v1.1