rustlylink

This crate parses Simulink slx files into a JSON representation and optionally provides code to display or analyze the model.

Important note: At the moment, we only support the R2025a+ file format. At the moment, there are no plans to support older formats, but contributions are welcome.

This viewer is intended to be a starting point for building your own tools around Simulink models. While it does not intend to be a complete Simulink viewer (many features are unsupported), it is still useful for automation tasks.

You don't need a MATLAB or Simulink license or installation to use this tool.

Quick start

• Build:

cargo build

• Run against your workspace root system:

cargo run --features egui,highlight --example egui_viewer -- MyModel.slx

Non-GUI examples

Print an ASCII tree of SubSystems in a model (works with .slx or individual XML):

cargo run --example tree -- ASXTest.slx

Or point to an XML system file:

cargo run --example tree -- simulink/systems/system_root.xml

Library usage

use rustylink::parser::SimulinkParser;
use camino::Utf8PathBuf;

let parser = SimulinkParser::new(".");
let system = parser.parse_system_file(Utf8PathBuf::from("simulink/systems/system_root.xml"))?;
println!("{}", serde_json::to_string_pretty(&system)?);

Notes

• The data model is intentionally generic (maps for properties) to accommodate varying Simulink versions.
• Extend model.rs to add more explicit types for blocks you care about.