Replace currently selected objects with occurences of type

Added operator to replace currently selected objects with occurences of the chosen type. I kept doing this from the code and thought it could be generally useful.

It's working pretty naive now and just replacing objects with occurences preserving the original transform (location/rotation/scale), nothing else is preserved.

Demo - https://imgur.com/a/qm8a6Ns

PS Hopefully I'm not reinventing the wheel and not missed some other similar operator

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

@@ -63,6 +63,7 @@ classes = (
     product.EnableAddType,
     product.LoadTypeThumbnails,
     product.MirrorElements,
+    product.ReplaceSelectedWithTypeOccurences,
     workspace.Hotkey,
     wall.AlignWall,
     wall.ChangeExtrusionDepth,

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

@@ -283,6 +283,49 @@ class AddConstrTypeInstance(bpy.types.Operator):
             return True
 
 
+class ReplaceSelectedWithTypeOccurences(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.replace_selected_with_type_occurences"
+    bl_label = "Replace Selected With Type Occurences"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = (
+        "\nReplace selected objects with type either chosen in BIM tools or provided in the argument.\n\n"
+        "NOTE: Currently it's just replacing original object by occurence with the same transform, \n"
+        "no other data from original object is preserved."
+    )
+    relating_type_id: bpy.props.IntProperty(default=0)
+
+    @classmethod
+    def poll(cls, context):
+        if not context.selected_objects:
+            cls.poll_message_set("No objects selected")
+            return False
+        return True
+
+    def _execute(self, context):
+        props = context.scene.BIMModelProperties
+        relating_type_id = self.relating_type_id or int(props.relating_type_id)
+
+        if not relating_type_id:
+            self.report({"ERROR"}, "No type provided.")
+            return {"FINISHED"}
+
+        originally_active_object = context.active_object
+        new_active_object = None
+        objs = bpy.context.selected_objects[:]
+        new_objects = []
+        for replaced_obj in objs:
+            bpy.ops.bim.add_constr_type_instance(relating_type_id=relating_type_id)
+            new_objects.append(obj := bpy.context.active_object)
+
+            obj.matrix_world = replaced_obj.matrix_world
+            if replaced_obj == originally_active_object:
+                new_active_object = obj
+
+            bpy.data.objects.remove(replaced_obj)
+        tool.Blender.set_objects_selection(context, new_active_object, new_objects)
+        return {"FINISHED"}
+
+
 class ChangeTypePage(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.change_type_page"
     bl_label = "Change Type Page"

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

@@ -461,6 +461,7 @@ class BimToolUI:
             else:
                 row.label(text="No Construction Type", icon="FILE_3D")
             row.operator("bim.launch_type_manager", icon="LIGHTPROBE_GRID", text="")
+            row.operator("bim.replace_selected_with_type_occurences", icon="ARROW_LEFTRIGHT", text="")
         else:
             if AuthoringData.data["ifc_element_type"]:
                 row.label(text=f"No {AuthoringData.data['ifc_element_type']} Found", icon="ERROR")
@@ -474,6 +475,7 @@ class BimToolUI:
             else:
                 row.label(text="No Element Types Found", icon="ERROR")
                 row.operator("bim.launch_type_manager", icon="LIGHTPROBE_GRID", text="Launch Type Manager")
+                row.operator("bim.replace_selected_with_type_occurences", icon="ARROW_LEFTRIGHT", text="")
 
     @classmethod
     def draw_basic_bim_tool_interface(cls):