b9ee5ddfa3
- RealtimeChart composable with Canvas-based rendering - TieredBuffer: 3-tier ring buffer (5min full-rate, 10min @10Hz, 45min @1Hz) for 1h data support with ~5MB footprint - LodDecimator: MEAN / MIN_MAX / MIN_MAX(default) / LTTB render-time decimation - AxisRenderer: X/Y axis with INSIDE/BESIDE/HIDDEN label modes, T0-relative timestamps, scientific notation - SignalRenderer: clipRect-bounded path rendering with LoD - ChartTheme: Material3-compatible dynamic theming (light/dark) - package: dev.dtrentin.chart Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
61 lines
2 KiB
Markdown
61 lines
2 KiB
Markdown
# Project State
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## Project Reference
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See: .paul/PROJECT.md (updated 2026-05-20)
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**Core value:** Android devs plot 200Hz+ multi-signal sensor data without frame drops
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**Current focus:** v0.2.0 — Phase 4 LOD scratch optimization (deferred)
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## Current Position
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Milestone: v0.2.0
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Phase: 3 of 4 — In Progress
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Plan: .paul/phases/v0.2.0-plan.md
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Status: In Progress
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Last activity: 2026-05-20 — Phases 1-3 complete + build green. rememberMaterialChartTheme(), axis text labels (TextMeasurer), dynamic xWindowSeconds param, theme param on RealtimeChart. Fix: added compose.material3 to commonMain deps.
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Progress:
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- Milestone: [██████████] 100%
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- Phase 6: [██████████] 100%
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## Loop Position
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```
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PLAN ──▶ APPLY ──▶ UNIFY
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✓ ✓ ✓ [v0.1.0 SHIPPED]
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```
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## Accumulated Context
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### Decisions
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| Decision | Phase | Impact |
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|----------|-------|--------|
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| Canvas custom rendering (no lib) | Init | Core architecture |
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| Render/data decoupled withFrameNanos | Init | RenderLoop design |
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| LoD min/max decimation | Init | SignalRenderer calls LodDecimator |
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| compose.foundation added to commonMain deps | Phase 4 | Canvas + Modifier.background require it |
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| iOS deferred | Init | commonMain only, no expect/actual beyond currentTimeMs |
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### Deferred Issues
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| Issue | Origin | Effort | Revisit |
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|-------|--------|--------|---------|
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| LodDecimator scratch array allocation per frame | Phase 2 | M | v0.2.0 |
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| Double snapshot per frame in RealtimeChart | Phase 4 | M | v0.2.0 |
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| Axis text labels | Phase 4 | M | v0.2.0 — needs TextMeasurer |
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| iOS support | Init | L | Future milestone |
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### Blockers/Concerns
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None.
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## Session Continuity
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Last session: 2026-05-20
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Stopped at: Phases 1-5 complete. 16 tests pass.
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Next action: Phase 6 — 06-01 ChartTheme + Material3, 06-02 KDoc + README + publish config
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Resume context: All source in chart-realtime/commonMain; demo app in app/
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---
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*STATE.md — Updated after every significant action*
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