@sysdml/layout

Layout engine for SysDML stock-and-flow diagrams. Takes a compiled @sysdml/ir model and computes 2D positions and routing for stocks, flows, auxiliaries, and connections — the pure-geometry step between "here's a model" and "here's where to draw it."

Part of the SysDML monorepo. See the root README for the overall architecture and how the packages fit together.

What it exports

• layout-engine.js — the main entry point that turns an IR model into positioned diagram elements
• layout-edges.js — connection/flow routing between positioned elements
• layout-auxiliaries.js — placement of auxiliary variables relative to the elements that reference them
• missing-positions.js — fills in positions for elements the source model didn't specify
• geometry.js — shared geometric primitives (points, boxes, routing math)
• layout-types.js — TypeScript types for the layout output
• layout-theme.js — sizing/spacing constants used by the layout algorithm

@sysdml/renderer is the primary consumer — it calls into this package to position the diagram before drawing it on the SVG canvas.

License

AGPL-3.0-only. See LICENSE.