Description: A depth camera and projector turn sand into a live contour map.
Objective
Demonstrate contour lines and watershed concepts with an interactive model.
Materials
- Depth camera, projector, PC
- Sandbox with fine sand
- Calibration board
Procedure
1. Calibrate camera–projector alignment.
2. Shape terrain; observe real-time contour updates.
3. Simulate rainfall and drainage.
4. Explain elevation, slope, and basins.
Conclusion
Projected feedback links physical modeling to geographic concepts.
