---
trigger: always_on
---
# Context Inclusion: VTK
When this rule is active, include the VTK visualization layer in the operational context.
- **Priority Path**: `src/Vtk`
- **Focus**: `Prop3D` hierarchy, `Viewport` management, and the synchronization between domain objects and VTK props.
- **Key Classes**: `vtkViewport`, `vtkQViewport`, `vtkObjectsContext`, and all classes in `src/Vtk/HEP/Geant`.
- **Logic**: Ensure transformations (TRS) applied to domain objects are correctly mirrored in the visualization layer and vice versa.