4. The computer-implemented method of claim 3 , wherein prior to aligning the displayed 3D model and the corresponding displayed real-world object, the 3D model is translated to prevent overlap of the real-world object and a marker used to position the 3D model on the computer screen.
3. The computer-implemented method of claim 1 , wherein displaying the 3D model and the real-world environment simultaneously uses augmented reality to project the 3D model and the real-world environment onto the computer screen.