## System Overview: Multi-Agent Path Finding (MAPF) Visualization This document details the visualization of a Multi-Agent Path Finding (MAPF) system. The visualization displays agents navigating a grid-based environment, avoiding collisions and reaching their designated goals. ### 1. Environment Representation * **Grid:** The environment is represented as a 2D grid. Each cell in the grid can be either: * **Free Space:** Represents navigable areas. * **Obstacle:** Represents blocked areas that agents cannot traverse. * **Dimensions:** The grid dimensions are configurable (e.g., 20x20, 50x50). * **Visualization:** Free space is typically displayed as white or a light color, while obstacles are displayed as black or a dark color. ### 2. Agent Representation * **Shape:** Agents are visually represented as colored circles or squares. * **Color Coding:** Each agent is assigned a unique color for easy identification. * **Size:** Agent size is proportional to their radius or dimensions. * **Goal:** Each agent has a designated goal location, marked by a distinct symbol (e.g., a star, a flag) or color. ### 3. Path Visualization * **Path Lines:** The planned path for each agent is displayed as a series of connected lines. * **Path Color:** Path lines are often displayed in the same color as the corresponding agent. * **Path Thickness:** Path thickness can be adjusted for visual clarity. * **Real-time Updates:** The visualization updates in real-time as agents move along their planned paths. ### 4. Collision Avoidance * **Collision Detection:** The system detects potential collisions between agents. * **Collision Resolution:** When a collision is detected, the system replans the paths of the involved agents to avoid the collision. * **Visualization of Conflicts:** Potential collisions can be highlighted visually (e.g., by flashing the agents involved or displaying a warning symbol). ### 5. Algorithm Parameters (Configurable) | Parameter | Description | Default Value | | ------------------ | ----------------------------------------- | ------------- | | Number of Agents | The number of agents in the environment. | 10 | | Grid Width | The width of the grid. | 20 | | Grid Height | The height of the grid. | 20 | | Obstacle Density | The percentage of cells occupied by obstacles. | 0.2 | | Planning Algorithm | The path planning algorithm used. | CBS | | Visualization Speed| The speed at which the visualization updates.| 1x | ### 6. Data Output * **Agent Positions:** The current (x, y) coordinates of each agent. * **Agent Paths:** The sequence of (x, y) coordinates representing the planned path for each agent. * **Collision Events:** A log of all detected and resolved collision events. * **Performance Metrics:** Metrics such as path length, planning time, and collision rate. ### 7. User Interface (UI) Elements * **Start/Pause Button:** Controls the simulation. * **Step Button:** Advances the simulation by one time step. * **Parameter Controls:** Allows users to adjust the algorithm parameters. * **Visualization Controls:** Allows users to customize the visualization (e.g., colors, path thickness). * **Data Display:** Displays the agent positions, paths, collision events, and performance metrics.