Use when authoring or editing OAS-Core JSON — rooms, walls, openings (doors/windows), curtain walls, roofs, floor slabs, furniture, railings, or annotations in a 2D floor plan.
Use when adding or editing OAS extension blocks — machinery, materials, site, MEP, or Autodesk metadata — that augment a Core or Layout document.
Use when writing or debugging OAS geometry — points, polygons, line segments, arcs, circles, spirals, fillets, units, or coordinate conventions. Load before any geometry-heavy edit.
Use when producing or editing fully resolved OAS-Layout JSON — multi-level plans with levels, rooms, walls, openings, slabs, roofs, furniture, railings, and inter-level connections.
Use when capturing OAS design intent — room requirements, area targets, adjacency rules, circulation rules, or global constraints — before any geometry has been resolved.
Use when mapping OAS plans to a visual output — SVG, Canvas, or WebGL — including scale, axis orientation, and z-order layering.