roadrunner-core

Run the rrCoreInitialize script, which first tries roadrunner.connect() to attach to a running instance and otherwise launches RoadRunner using saved settings. If paths are not configured, provide the installFolder and projectPath variables and re-run initialization.

After initializing rrApp, use the newScene pattern to create a scene and saveScene(rrApp, name) to save it. Relative paths resolve to the project's Scenes folder, and the .rrscene extension is appended automatically if omitted.

The roadrunner class and core project, scene, and scenario APIs require MATLAB R2022a or later. World settings operations such as changeWorldSettings require R2023b or later.

Yes, launch with roadrunner(ProjectFolder=..., NoDisplay=true) for fully headless batch or CI operation, or NoDesktop=true when graphics rendering is still needed. Custom API and cosimulation ports are set with the Ports argument.

Closing RoadRunner with close(rrApp) terminates the process entirely, and on relaunch only the project is restored, not the scene. You must explicitly reopen the desired scene with openScene after reconnecting.

No, close(rrApp) never prompts to save and terminates the RoadRunner process. Always save the scene and scenario explicitly before closing, and decide with the user whether to save in place, save as a new name, or discard changes.