1 files changed, 16 insertions, 10 deletions
diff --git a/src/argaze/ArUcoMarkers/ArUcoBoard.py b/src/argaze/ArUcoMarkers/ArUcoBoard.py
index e6772c4..5d2a39d 100644
--- a/src/argaze/ArUcoMarkers/ArUcoBoard.py
+++ b/src/argaze/ArUcoMarkers/ArUcoBoard.py
@@ -9,25 +9,31 @@ import cv2.aruco as aruco
 class ArUcoBoard():
     """Calibration chess board with ArUco markers inside."""
 
-    def __init__(self, dictionary: ArUcoMarkersDictionary.ArUcoMarkersDictionary | str, columns: int, rows: int, square_size: float, marker_size: float):
+    def __init__(self, columns: int, rows: int, square_size: float, marker_size: float, dictionary: ArUcoMarkersDictionary.ArUcoMarkersDictionary | str = None):
         """Create columns x rows chess board with ArUco markers at given size in centimeters."""
 
-        # Handle dictionary str or instance
-        if type(dictionary) == str:
-            self.__dictionary = ArUcoMarkersDictionary.ArUcoMarkersDictionary(dictionary)
-        elif isinstance(dictionary, ArUcoMarkersDictionary.ArUcoMarkersDictionary):
-            self.__dictionary = dictionary
-        else:
-            raise ValueError(f'dictionary: {dictionary}')
-
         # Store properties
         self.__columns = columns
         self.__rows = rows
         self.__square_size = square_size  # in cm
         self.__marker_size = marker_size  # in cm
 
+        # Handle dictionary str or instance
+        if dictionary != None: 
+
+            if type(dictionary) == str:
+                self.dictionary = ArUcoMarkersDictionary.ArUcoMarkersDictionary(dictionary)
+            elif isinstance(dictionary, ArUcoMarkersDictionary.ArUcoMarkersDictionary):
+                self.dictionary = dictionary
+            else:
+                raise ValueError(f'dictionary: {dictionary}')
+
+        else:
+
+            self.dictionary = ArUcoMarkersDictionary.ArUcoMarkersDictionary()
+
         # Create board model
-        self.__board = aruco.CharucoBoard((self.__columns, self.__rows), self.__square_size/100., self.__marker_size/100., self.__dictionary.markers)
+        self.__board = aruco.CharucoBoard((self.__columns, self.__rows), self.__square_size/100., self.__marker_size/100., self.dictionary.markers)
 
     def __del__(self):
         pass