Crate treemaker_core 

Headless TreeMaker 5.0.1 model engine.

treemaker-core is a Rust port of the model-only TreeMaker engine: stream I/O, tree/path feasibility, ALM optimization, polygon construction, crease pattern construction, and CP diagnostics. It does not include GUI, wxWidgets, printing, menus, or proprietary optimizer backends.

The primary entry point is Tree.

use treemaker_core::Tree;

let text = std::fs::read_to_string("model.tmd5")?;
let mut tree = Tree::from_tmd_str(&text)?;

let summary = tree.summary();
println!("nodes={}, paths={}", summary.nodes, summary.paths);

tree.optimize_scale()?;
tree.build_polys_and_crease_pattern()?;

std::fs::write("out.tmd5", tree.to_tmd5_string())?;

Numeric optimization parity is tolerance-based. The behavioral baseline is TreeMaker 5.0.1 with the distributable ALM backend.

Structs

CPStatusReport

Detailed crease-pattern status report with offending part IDs when available.

Condition

TreeMaker condition wrapper.

Crease

Crease-pattern crease.

Edge

TreeMaker edge record.

Facet

Crease-pattern facet.

Node

TreeMaker node record.

OptimizationReport

Report returned by optimization operations.

Path

TreeMaker path record between a pair of nodes.

Point

Two-dimensional point in paper coordinates.

Poly

Polygon or subpolygon generated during crease-pattern construction.

Tree

Complete TreeMaker model state.

TreeSummary

Stable summary of a Tree suitable for CLI/wasm output and regression tests.

Vertex

Crease-pattern vertex.

Enums

CPStatus

High-level crease-pattern status, matching TreeMaker’s GetCPStatus().

ConditionKind

Supported TreeMaker condition variants.

OptimizationKind

Optimizer kind used for an OptimizationReport.

OwnerRef

Owner reference using TreeMaker’s 1-based external indices.

TreeError

Structured error returned by parsing, validation, optimization, and build operations.

Type Aliases

Result

Crate-local result type.

TmFloat

Floating-point type used by TreeMaker geometry and optimization.