New IFC to Brick class mapping utility

src/ifcopenshell-python/ifcopenshell/util/brick.py

@@ -0,0 +1,20 @@
+import os
+import json
+
+
+cwd = os.path.dirname(os.path.realpath(__file__))
+
+ifc4_to_brick_map = {}
+
+with open(os.path.join(cwd, "ifc4_to_brick.json")) as f:
+    ifc4_to_brick_map = json.load(f)
+
+
+def get_brick_type(element):
+    predefined_type = getattr(element, "PredefinedType", None)
+    result = None
+    if predefined_type:
+        result = ifc4_to_brick_map.get(f"{element.is_a()}.{predefined_type}", None)
+    if not result:
+        result = ifc4_to_brick_map.get(element.is_a(), None)
+    return result