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* Add roof surface placement support for items Items (e.g. solar panels) can now be placed on sloped roof surfaces. The placement system computes euler rotation from the roof surface normal so items sit flush on the slope instead of going inside. - Add roofStrategy to placement-strategies with enter/move/click/leave - Wire roof:enter/move/click/leave events in the placement coordinator - Add calculateRoofRotation in placement-math using surface normals - Support full 3D cursor rotation for sloped surfaces - Items on roofs are parented to the level with world-space rotation Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fixed conflict * feat(floorplan): add construction dimension strings * feat(floorplan): coordinate opening dimensions * feat(floorplan): add opening documentation * feat(floorplan): add construction dimensions and notes * feat(floorplan): add interior dimensions and curved note leaders * feat(floorplan): improve construction dimensions and document plan * feat(floorplan): harden construction document output * feat(floorplan): add annotation collision diagnostics * feat(floorplan): size export annotations in paper space * feat(floorplan): automatically separate overlapping labels * fix(floorplan): resolve dense label overlaps * fix(floorplan): remove stale collision warning overlays * fix(floorplan): treat mark pills as collision obstacles * feat(floorplan): place short dimension values outside * fix(floorplan): preserve dimension string order * fix(floorplan): avoid architectural geometry in label layout * feat(floorplan): add dimension side fallback leaders * docs(floorplan): update chapter 17 implementation status * fix(floorplan): dimension subdivided interior walls * feat: add associative floor plan dimensions * feat: add continuous construction dimension strings * feat: add structural floor plan grids * feat: coordinate columns with structural grids Snap column placement and movement to structural axes and intersections, derive associative grid references, and preserve floor-plan rotation by allowing secondary-button pointer moves through the grid drafting layer. * feat: add architectural room documentation Add room-role metadata, editable documentation fields, centered room labels, and persisted live/PDF visibility while preserving generic zone behavior. * feat: generate architectural room schedules Add registry-driven room schedule rows with unit-aware areas and heights, natural room ordering, enclosure resolution, and document-quality warnings. * feat: add reliable room clear dimensions Derive unit-aware clear dimensions from proven modeled inside wall faces for straight rectangular rooms, including rotated and split-wall enclosures, while suppressing unproven datums. * feat: add architectural stair documentation Add level-aware UP/DN graphics, derived flight and rail notes, plan break and overhead conventions, linked destination-level projection, and persisted live/PDF visibility. * feat: add typed specialty construction notes Add schema-validated specialty payloads, standardized plan notation, contract-scope metadata, configurable overhead outlines, and editor authoring controls. * feat: add curved and circular dimensions Add associative radius, diameter, center, chord, arc-length, angular, and coordinate modes with unit-aware notation, repeated-feature labels, 2D authoring, and document controls. * feat: coordinate floor plan drawing types Add persistent floor, foundation, reflected-ceiling, roof, and site plan views with per-dimension show, omit, reference, and foundation-controller behavior across live and PDF output. * feat: add associative curved wall dimensions Bind radius, center, chord, arc-length, and angular construction dimensions directly to curved wall geometry so annotations update when the host curve changes. * fix: render automatic curved wall dimensions The wall floor-plan builder explicitly skipped curved walls, leaving the associative authoring workflow as the only dimension path. Render a concentric arc-length dimension automatically and keep it governed by automatic-dimension visibility. * fix: use radius callout for curved walls Replace the automatic arc-length annotation with the source-standard radius method: computed center mark, radial leader, curve arrow, and R value. Keep adjacent linear strings responsible for locating the curve tangencies and depth. * Implement construction dimension string editing * Add construction dimension standards controls * Apply drawing standards to automatic dimensions * Add floorplan overhead and reference visibility controls * Add view-specific dimension segment suppression * Add persistent drawing sheet model * Plot floorplan exports at fixed scale * Apply paper-space annotation profiles * Compose floorplan PDF sheets * Support sheet paper sizes and preflight * Persist pinned annotation layout overrides * Expand annotation collision obstacles * Add floorplan annotation preflight surface * Add reusable drawing sheet general notes * Add drawing sheet keyed note instances * Add drawing sheet document markers * Expand construction note leader terminators * Add wall assembly layer model * Resolve wall assembly datum references * Add wall assembly floorplan graphics * Add opening documentation dimension policies * Add finish-face room clear dimensions * Extend room clear dimensions to rectilinear rooms * Add construction module advisories * Add clearance advisory profiles * Add dimension completeness audit * Expand dimension completeness audit * Include preflight issues in completeness audit * feat: complete floorplan construction documentation * refactor: remove construction note node * feat: refine floorplan documentation and unit display * fix(editor): improve floorplan PDF dimensions * fix(floorplan): refresh annotation collision layout * fix(floorplan): keep annotations clear and restore registry boundaries * feat(floorplan): refine construction dimension references * fix(floorplan): align documentation tools with architecture --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Architecture
Canonical rules for code that touches packages/core, packages/viewer, packages/editor, packages/mcp, or apps/editor. Read on demand from AGENTS.md and from .agents/skills/review-architecture/SKILL.md.
Pages
| Page | Covers |
|---|---|
| layers | Three.js layer constants, ownership, and rendering separation |
| systems | Core and viewer systems architecture |
| renderers | Node renderer pattern in packages/viewer |
| node-definitions | Three-checkbox composition model for registry-driven kinds (geometry / renderer / system) |
| materials-and-themes | Surface colour: surface roles, colour presets, the textures axis, and scene themes (appearance / ground / clay tints) |
| item-authoring | Content-author contract for catalog item GLBs: slot_ material naming, authored defaults + pascal_material extras, the cutout reserved mesh, UV world scale, and the validated Blender/export recipe |
| plugin-authoring | Public contract for external plugins — Plugin shape, setPluginDiscovery, lifecycle, what's in and out of v1 |
| tools | Editor tools structure, 2D↔3D behavioral parity, manipulation constraints, and Shift bypass defaults |
| measurements | Persistent measurement data, 2D/3D draft ownership, snapping, units, and visibility |
| interaction-scope | The authoritative interaction state machine ("the spine"): InteractionScope union, the begin/update/end/endIf contract, the raycast hot-set, and the overlay scope matrix |
| viewer-isolation | Keeping @pascal-app/viewer editor-agnostic |
| selection-managers | Two-layer selection (viewer + editor), events, outliner |
| scene-registry | Global node ID → Object3D map and useRegistry |
| spatial-queries | Placement validation (canPlaceOnFloor/Wall/Ceiling) for tools |
| node-schemas | Zod schema pattern for node types, createNode, updateNode |
| vertical-model | Stored level heights, plane-bound wall/ceiling tops, slab placement + thickness, support hosts, clamp rules, and the load migration |
| events | Typed event bus — emitting and listening to node and grid events |
| creating-rules | How to add or update a page in this folder |
Reading order for an architecture review
- layers, systems, renderers, tools, viewer-isolation — required every review.
- When the diff touches placement / move / handle / reshape / box-select / paint or any overlay or picking behaviour, also read interaction-scope.
- The remaining pages on demand, based on what the diff touches.