Crate feagi_brain_development 

FEAGI BDU (Brain Development Utilities)

This crate implements high-performance brain development operations including:

• Synaptogenesis (synapse creation based on morphology rules)
• Connectivity rules (projection, topology, patterns)
• Spatial hashing and coordinate transformations

Architecture

Mirrors the Python structure:

• feagi/bdu/connectivity/ → feagi_brain_development::connectivity
• feagi/bdu/morton_spatial_hash.py → feagi_brain_development::spatial

Performance Goals

• 40x-100x faster than Python implementation
• Sub-second projection mappings for 128×128×20 areas
• SIMD-optimized coordinate transformations
• Parallel processing for large mappings

Python Integration

NPU-native synaptogenesis functions are exposed via PyO3 bindings in feagi-rust-py-libs. Python code calls these functions directly with area IDs - no FFI overhead.

Copyright 2025 Neuraville Inc. Licensed under the Apache License, Version 2.0

Re-exports

pub use connectivity::apply_block_connection_morphology;

pub use connectivity::apply_expander_morphology;

pub use connectivity::apply_patterns_morphology;

pub use connectivity::apply_projector_morphology;

pub use connectivity::apply_vectors_morphology;

pub use spatial::morton_decode_3d;

pub use spatial::morton_encode_3d;

pub use spatial::MortonSpatialHash;

pub use spatial::SpatialHashStats;

pub use types::AreaId;

pub use types::BduError;

pub use types::BduResult;

pub use types::Weight;

pub use models::BrainRegionHierarchy;

pub use models::CorticalAreaExt;

pub use types::Position;

pub use connectome_manager::ConnectomeConfig;

pub use connectome_manager::ConnectomeManager;

pub use neuroembryogenesis::DevelopmentProgress;

pub use neuroembryogenesis::DevelopmentStage;

pub use neuroembryogenesis::Neuroembryogenesis;

pub use cortical_type_utils::describe_cortical_type;

pub use cortical_type_utils::get_io_data_type;

pub use cortical_type_utils::uses_absolute_frames;

pub use cortical_type_utils::uses_cartesian_encoding;

pub use cortical_type_utils::uses_incremental_frames;

pub use cortical_type_utils::uses_percentage_encoding;

pub use cortical_type_utils::validate_connectivity;

Modules

connectivity

Connectivity and synaptogenesis operations.

connectome_manager

ConnectomeManager - Core brain connectivity manager.

cortical_type_utils

Cortical Type Utilities for BDU

models

Core data models for FEAGI BDU.

neuroembryogenesis

Neuroembryogenesis - Brain Development from Genome.

spatial

Spatial indexing utilities for efficient position-based queries.

types

Core types for BDU operations.

Structs

BrainRegion

Brain region metadata (genome representation)

CorticalArea

Cortical area metadata (genome representation)

CorticalID

Dimensions

Dimensions of an entire cortical area.

GenomeParser

Genome parser

GenomeSaver

Genome saver

ParsedGenome

Parsed genome data ready for ConnectomeManager

Enums

RegionType

Type of brain region (placeholder for future functional/anatomical classification)

Constants

VERSION

Crate version from Cargo.toml