Three layered improvements on the 2D registry layer:
- Z-order buckets so the SVG document order reflects intent: zones (0)
paint first, slabs/ceilings (1) next, every other kind (walls / items /
shelves / columns / stairs / …) on top. Stable sort preserves DFS order
within a bucket.
- Base / overlay split: each entry's `FloorplanGeometry` tree is walked
through `splitFloorplanOverlay`, partitioning into a base group
(polygons, paths, fills, hatches) and an overlay group (interactive
handles + labels — `text` / `endpoint-handle` / `midpoint-handle` /
`edge-handle` / `move-handle` / `dimension` / `dimension-label`). Base
renders rank-sorted; overlays paint after every base entry so polygon-
editor chrome on a selected slab and zone name labels stay legible
above the structural fills sitting on top of them.
- Click guard on the outer layer `<g>`. The base/overlay split means
pointer-down lands on base and pointer-up lands on overlay (selection
mounts the overlay on top mid-gesture). The browser then dispatches
`click` to the lowest common ancestor, ABOVE the entry's
`onClick={handleClickStop}`. Without a higher-level stop, the click
reached the SVG's `handleBackgroundClick` → `clear-elements` and the
selection set on pointer-down vanished a frame later. Scoped to
`onClick` only so pointer / hover / drag still propagate inside the
registry tree.
Also extends the `text` FloorplanGeometry with stroke / strokeWidth /
paintOrder / fontFamily so kinds can match the legacy "white fill +
colored outline" label look (used by the new zone name label).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@pascal-app/core
Core library for Pascal 3D building editor.
Installation
npm install @pascal-app/core
Peer Dependencies
npm install react three @react-three/fiber @react-three/drei
What's Included
- Node Schemas - Zod schemas for all building primitives (walls, slabs, items, etc.)
- Scene State - Zustand store with IndexedDB persistence and undo/redo
- Systems - Geometry generation for walls, floors, ceilings, roofs
- Scene Registry - Fast lookup from node IDs to Three.js objects
- Spatial Grid - Collision detection and placement validation
- Event Bus - Typed event emitter for inter-component communication
- Asset Storage - IndexedDB-based file storage for user-uploaded assets
Usage
import { useScene, WallNode, ItemNode } from '@pascal-app/core'
// Create a wall
const wall = WallNode.parse({
points: [[0, 0], [5, 0]],
height: 3,
thickness: 0.2,
})
useScene.getState().createNode(wall, parentLevelId)
// Subscribe to scene changes
function MyComponent() {
const nodes = useScene((state) => state.nodes)
const walls = Object.values(nodes).filter(n => n.type === 'wall')
return <div>Total walls: {walls.length}</div>
}
Node Types
SiteNode- Root containerBuildingNode- Building within a siteLevelNode- Floor levelWallNode- Vertical wall with optional openingsSlabNode- Floor slabCeilingNode- Ceiling surfaceRoofNode- Roof geometryZoneNode- Spatial zone/roomItemNode- Furniture, fixtures, appliancesScanNode- 3D scan referenceGuideNode- 2D guide image reference
Systems
Systems process dirty nodes each frame to update geometry:
WallSystem- Wall geometry with mitering and CSG cutoutsSlabSystem- Floor polygon generationCeilingSystem- Ceiling geometryRoofSystem- Roof generationItemSystem- Item positioning on walls/ceilings/floors
License
MIT