nflow_layout(sys)
| Parameter | Description |
|---|---|
| sys | a string: name of a loaded model ('model') to arrange its root diagram, or path of a subsystem ('model/Sub', 'model/Sub/Inner') to arrange that subsystem; or a numeric model handle. |
nflow_layout computes new positions for the blocks of a (sub)system from their connections: sources on the left, then one column per layer of connectivity, with wire crossings reduced, feedback edges handled and pure sinks grouped on the right.
Only the targeted depth is arranged: blocks inside nested subsystems keep their positions, call nflow_layout on each subsystem path to arrange it too.
Only the geometry changes (block Position); blocks, parameters and connections are left as they are, so the simulation result is unchanged. The layout is deterministic: running it again on the same diagram gives the same positions.
The model must be loaded (new_system or load_system). An unknown subsystem path is an error. The model is marked as modified; use save_system to keep the new layout.
new_system('demo');
add_block('nflow/source/sine', 'demo/S');
add_block('nflow/math/gain', 'demo/G1', 'Gain', 2);
add_block('nflow/math/gain', 'demo/G2', 'Gain', 3);
add_line('demo', 'S/1', 'G1/1');
add_line('demo', 'S/1', 'G2/1');
nflow_layout('demo');
get_param('demo/S', 'Position')
get_param('demo/G1', 'Position')
get_param('demo/G2', 'Position')
bdclose('demo');new_system('demo');
add_block('subsystem', 'demo/Sub');
add_block('nflow/source/sine', 'demo/Sub/S');
add_block('nflow/math/gain', 'demo/Sub/G');
add_line('demo', 'Sub/S/1', 'Sub/G/1');
nflow_layout('demo/Sub');
bdclose('demo');| Version | Description |
|---|---|
| 1.0.0 | initial version |