You can now recalculate connections manually for profiles

src/blenderbim/blenderbim/bim/module/model/__init__.py

@@ -36,6 +36,7 @@ classes = (
     wall.SplitWall,
     opening.AddElementOpening,
     profile.ExtendProfile,
+    profile.RecalculateProfile,
     prop.BIMModelProperties,
     prop.ConstrTypeInfo,
     ui.BIM_PT_authoring,

src/blenderbim/blenderbim/bim/module/model/profile.py

@@ -863,3 +863,33 @@ class DumbProfileJoiner:
                     final = {"contact": contact, "distance": distance, "end": result[2], "direction": result[3]}
 
         return final
+
+
+class RecalculateProfile(bpy.types.Operator):
+    bl_idname = "bim.recalculate_profile"
+    bl_label = "Recalculate Profile"
+    bl_options = {"REGISTER", "UNDO"}
+
+    @classmethod
+    def poll(cls, context):
+        return context.selected_objects
+
+    def execute(self, context):
+        DumbProfileRecalculator().recalculate(context.selected_objects)
+        return {"FINISHED"}
+
+
+class DumbProfileRecalculator:
+    def recalculate(self, profiles):
+        queue = set()
+        for profile in profiles:
+            element = tool.Ifc.get_entity(profile)
+            queue.add((element, profile))
+            for rel in getattr(element, "ConnectedTo", []):
+                queue.add((rel.RelatedElement, tool.Ifc.get_object(rel.RelatedElement)))
+            for rel in getattr(element, "ConnectedFrom", []):
+                queue.add((rel.RelatingElement, tool.Ifc.get_object(rel.RelatingElement)))
+        joiner = DumbProfileJoiner()
+        for element, profile in queue:
+            if element.is_a() in ("IfcColumn", "IfcBeam", "IfcMember") and profile:
+                joiner.recreate_profile(element, profile)

src/blenderbim/blenderbim/bim/module/model/workspace.py

@@ -194,6 +194,10 @@ class BimTool(WorkSpaceTool):
                 row.label(text="", icon="EVENT_Y")
                 row.operator("bim.hotkey", text="Mitre").hotkey="S_Y"
                 row = layout.row(align=True)
+                row.label(text="", icon="EVENT_SHIFT")
+                row.label(text="", icon="EVENT_G")
+                row.operator("bim.hotkey", text="Regen Connections").hotkey="S_G"
+                row = layout.row(align=True)
                 row.operator("bim.extend_profile", icon="X", text="Disconnect").join_type = ""
 
             if props.ifc_class in (
@@ -280,6 +284,8 @@ class Hotkey(bpy.types.Operator):
     def hotkey_S_G(self):
         if self.has_ifc_class and self.props.ifc_class == "IfcWallType":
             bpy.ops.bim.recalculate_wall()
+        elif self.props.ifc_class in ["IfcColumnType", "IfcBeamType", "IfcMemberType"]:
+            bpy.ops.bim.recalculate_profile()
 
     def hotkey_S_T(self):
         if not self.has_ifc_class: