add comment to pixel_corners

Adimote · Adimote · commit aaa914e33c4d · 2018-06-04T20:05:05.000+01:00
diff --git a/sb_vision/tokens.py b/sb_vision/tokens.py
@@ -95,6 +95,7 @@ def update_pixel_coords(
 
         self.homography_matrix = homography_matrix
 
+        # pixel corners: clockwise from the top left
         self.pixel_corners = pixel_corners
 
         # centre of marker: average the corners
