ADD box getter for column and beam.

Author: petrasvestartas

src/compas_model/elements/beam.py

@@ -79,6 +79,9 @@ def __init__(
         self._box = Box.from_width_height_depth(width, length, depth)
         self._box.frame = Frame(point=[0, 0, self._box.zsize / 2], xaxis=[1, 0, 0], yaxis=[0, 1, 0])
 
+    def box(self) -> Box:
+        return self._box
+
     @property
     def width(self) -> float:
         return self._box.xsize

src/compas_model/elements/column.py

@@ -74,6 +74,9 @@ def __init__(
         self._box = Box.from_width_height_depth(width, height, depth)
         self._box.frame = Frame(point=[0, 0, self._box.zsize / 2], xaxis=[1, 0, 0], yaxis=[0, 1, 0])
 
+    def box(self) -> Box:
+        return self._box
+
     @property
     def width(self) -> float:
         return self._box.xsize