Crate fleet_math_c 

Fleet math library — C-compatible math primitives for fleet operations.

Provides Eisenstein integer operations, Laman rigidity checks, holonomy verification, Manhattan distance for vector search, and Pythagorean-48 directional encoding. All public functions are #[no_mangle] extern "C".

Structs

SnapResult

Result of snapping a point to the nearest Eisenstein integer.

Constants

PYTHAGOREAN_48_DIRECTIONS

Number of discrete directions in Pythagorean-48 encoding.

Functions

batch_snap

Batch snap for interleaved (x, y) pairs.

fleet_eisenstein_norm

Eisenstein integer norm: N(a + bω) = a² − ab + b²

fleet_holonomy_check

Check if the product of integer transforms equals the identity (1).

fleet_is_rigid

Check whether a graph with vertices and edges satisfies the Laman rigidity condition E ≥ 2V − 3.

fleet_laman_edges

Minimum edges for a Laman-rigid graph on vertices vertices: 2V − 3.

fleet_manhattan_distance

Compute the Manhattan (L1) distance between two integer vectors.

fleet_pythagorean48_encode

Quantize a 2D angle (from x, y components) into one of 48 discrete directions.

snap

Snap a single (x, y) point to the nearest Eisenstein integer.