# Personal AI Infrastructure — Spatial Module

**Version**: v1.1.9 | **Status**: Active | **Last Updated**: March 2026

## Overview

The Spatial module provides coordinate systems, physics simulation, 3D/4D world models, and rendering for spatial computing applications. It enables PAI agents to work with geographic data, physical simulations, and 3D scenes.

## PAI Capabilities

### Submodule Capabilities

| Submodule | Purpose | Key Operations |
|-----------|---------|----------------|
| `coordinates` | Coordinate system transformations | GPS, UTM, cartesian conversions |
| `three_d` | 3D scene management | Mesh operations, spatial indexing |
| `four_d` | 4D (space+time) modeling | Temporal spatial data |
| `physics` | Physics simulation | Rigid body dynamics, collision detection |
| `rendering` | Scene rendering | Visualization, ray tracing |
| `world_models` | World state representation | Environment modeling for agents |

```python
from codomyrmex.spatial import coordinates, three_d, physics, rendering, world_models, four_d
```

## Key Exports

| Export | Type | Purpose |
|--------|------|---------|
| `coordinates` | Module | Coordinate system transformations |
| `three_d` | Module | 3D scene operations |
| `four_d` | Module | 4D space-time modeling |
| `physics` | Module | Physics simulation engine |
| `rendering` | Module | Scene visualization |
| `world_models` | Module | Environment state representation |

## PAI Algorithm Phase Mapping

| Phase | Spatial Contribution |
|-------|----------------------|
| **OBSERVE** | Parse and understand spatial data (coordinates, scenes, environments) |
| **THINK** | Use world models for spatial reasoning and planning |
| **EXECUTE** | Generate spatial layouts, coordinate transforms, physics simulations |
| **VERIFY** | Validate spatial constraints and physical feasibility |

## Architecture Role

**Specialized Layer** — Advanced domain-specific module for spatial computing. Consumed by `embodiment/`, `data_visualization/`, and `simulation/`.

## MCP Tools

This module does not expose MCP tools directly. Access its capabilities via:
- Direct Python import: `from codomyrmex.spatial import ...`
- CLI: `codomyrmex spatial <command>`

## Navigation

- **Self**: [PAI.md](PAI.md)
- **Parent**: [../PAI.md](../PAI.md) — Source-level PAI module map
- **Root Bridge**: [../../../PAI.md](../../../PAI.md) — Authoritative PAI system bridge doc
- **Siblings**: [README.md](README.md) | [AGENTS.md](AGENTS.md) | [SPEC.md](SPEC.md) | [API_SPECIFICATION.md](API_SPECIFICATION.md)
