Brings in auto-generated schematics from SPICE netlists with
click-to-edit values, graph paper backgrounds, and Mims-style
connected layout. Also adds embeddable notebook viewer for
cross-site iframe integration with the Mims library.
SchematicViewer now supports inline editing of component values
directly on the SVG. Clicking an editable value opens an overlay
input that updates the SPICE netlist on commit, triggering an
auto-redraw after 800ms debounce.
Added DOMPurify for SVG sanitization, netlist-utils for safe
value substitution in netlists, and wired schematic generation
through the notebook store with generation counters to discard
stale responses.
Sage-green grid (minor 10pt, major 50pt) on warm off-white canvas,
injected as nested SVG patterns behind all schematic content.
Works across all three renderers (loop, connected, grid).
- Add lead stub wires (0.75 unit) from collector and emitter pins
for clearance between transistor and first component
- Transistor label placed right of body, all chain labels on left
- Offset parallel paths (RE/CE) label on right, facing outward
- Wider parallel path spacing (2.5 units) for label breathing room
- Down-turning components label outward based on path direction
- Parameterized label_loc in _draw_vert_chain for context-aware placement
Replace the disconnected grid fallback with a topology-aware renderer
that places BJTs/MOSFETs at center and draws connected wire paths using
SchemDraw push/pop for branching at junction points.
Layout pipeline: trace component chains from each device terminal,
classify paths by direction (supply/ground/input/output), draw with
proper Vdd/Ground terminators and junction dots at branch points.
Fallback cascade: loop → connected → grid. Supply sources shown as Vdd
rail symbols; signal sources drawn inline as SourceV in input paths.
Parse netlists into component graphs and render circuit diagrams via
SchemDraw. Two layout strategies: loop layout for simple 2-terminal
circuits (RC, RL, voltage divider) and labeled grid for complex
circuits with active devices (BJT amplifiers, MOSFET).
Backend: netlist parser, schematic engine, POST API endpoint.
Frontend: SchematicViewer with zoom/download, stacked cell layout
showing schematic + SPICE editor + waveform simultaneously.
Buck converter, Class AB amplifier, AM radio receiver, Dickson
charge pump, transmission line signal integrity, 4th-order
Sallen-Key filter, and Colpitts RF oscillator. Multi-cell
notebooks with engineering narratives and multiple simulation
views per circuit.
Vite inlines import.meta.env.PUBLIC_* at build time, not runtime.
Without this, the frontend falls back to localhost:8099 which doesn't
exist from the browser. Empty string means same-origin requests,
letting Caddy route /api/* to the backend.
Bind mounts inherit host UID which conflicts with the container's
non-root user. Named volumes are initialized from the image layer,
preserving the chown from the Dockerfile.
Pre-create /app/notebooks/{user,examples} with correct ownership
before switching to the spicebook user. Without this, the app crashes
with PermissionError when it tries to create these directories at
runtime.
Update frontend Dockerfile prod stage from Caddy static to Node.js
running Astro SSR server. Configure caddy-docker-proxy labels to
route /api/* to backend and everything else to frontend on the same
domain. Support empty PUBLIC_API_URL for same-origin API calls.
Document architecture, features, quick start, file format, API
endpoints, configuration, roadmap, and tech stack. Include screenshots
of the notebook with AC Bode plot and transient step response.
Switch from query-param routing (/notebook/?id=X) to Astro dynamic
routes (/notebook/rc-lowpass-filter). Add @astrojs/node adapter with
output: 'server' for on-demand route handling.
Fix formatEng/formatAxisValue crash on null values passed by uPlot
axis tick formatters. Add CORS origin for port 4322.
