3D models can realistically simulate emergency incidents with visibility analysis and buffer analysis. Perform police deployments or make anti-terrorist emergency plans before they happen. The 3D function can create models for critical often-crowded locations such as vehicle stations, city squares, schools and more. In the case of mob hijacking, terrorist attack, or similar situations, the incident location can be realistically simulated via 3D movement emulation. With panoramic image observation and 3D animation simulation, users can analyze the situation, effectively command law enforcement personnel, ensure the safety of hostages, and reduce fortuitous losses.