# 13. Modeling Tools Completion (Object Mode)

**Date:** 2025-11-22  
**Version:** 0.1.12  
**Tasks:** TASK-008_1

## 🚀 Key Changes

This release completes the set of object-level modeling tools, greatly enhancing the AI's ability to manipulate geometry containers and object origins.

### Domain Layer (`server/domain/tools/modeling.py`)
- Added new abstract methods to `IModelingTool`:
  - `convert_to_mesh(name: str)`
  - `join_objects(object_names: List[str])`
  - `separate_object(name: str, type: str)`
  - `set_origin(name: str, type: str)`

### Blender Addon (Server Side) (`blender_addon/application/handlers/modeling.py`)
- Implemented new methods in `ModelingHandler`:
  - `convert_to_mesh`: Converts non-mesh objects (e.g., curves) to mesh.
  - `join_objects`: Joins multiple mesh objects into one, handling selection and active object state.
  - `separate_object`: Separates a mesh object based on type (LOOSE, SELECTED, MATERIAL), managing Edit Mode transitions.
  - `set_origin`: Sets the object's origin point using Blender's `origin_set` operator.

- **`blender_addon/__init__.py`**:
  - Registered new RPC handlers for all implemented tools.

### Application Layer (`server/application/tool_handlers/modeling_handler.py`)
- Implemented new methods in `ModelingToolHandler`, delegating calls to the RPC client and handling responses.

### Adapters Layer (`server/adapters/mcp/server.py`)
- Registered new MCP tools:
  - `modeling.convert_to_mesh`
  - `modeling.join_objects`
  - `modeling.separate_object`
  - `modeling.set_origin`

### Testing (`tests/test_modeling_tools.py`)
- Added comprehensive unit tests for all new tools, including:
  - `test_convert_to_mesh`, `test_convert_to_mesh_already_mesh`, `test_convert_to_mesh_object_not_found`.
  - `test_join_objects`, `test_join_objects_no_objects`, `test_join_objects_non_existent`.
  - `test_separate_object_loose`, `test_separate_object_non_mesh`, `test_separate_object_invalid_type`, `test_separate_object_not_found`.
  - `test_set_origin`, `test_set_origin_invalid_type`, `test_set_origin_object_not_found`.
- Fixed a `NameError` in `blender_addon/application/handlers/modeling.py` (missing `from typing import List`).
- Fixed `SyntaxWarning` in `tests/test_modeling_tools.py`.

AI can now perform a wider range of object-level modeling tasks with greater precision and reliability.
