davide.trentin/KMPCharts
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4 commits

Author SHA1 Message Date
Trentin Davide
d6f51cdef2 feat(ios): iOS build pipeline + XCFramework, fix K/Native source bugs 
Modules: chart-realtime (commonMain, iosMain), root, .paul

- chart-realtime/build.gradle.kts: applyDefaultHierarchyTemplate() + XCFramework("ChartRealtime") over iosX64/iosArm64/iosSimulatorArm64, baseName CamelCase
- commonMain RealtimeChartState/CircularBuffer: switch to kotlin.concurrent.Volatile, add kotlin.jvm.JvmName import (OptionalExpectation)
- commonMain AxisRenderer: replace JVM-only String.format with multiplatform formatFixed/formatScientific/pow10 helpers
- iosMain Platform.ios.kt: NSDate() + timeIntervalSinceReferenceDate + 978_307_200s 1970-epoch offset (K/Native binding has no direct timeIntervalSince1970)
- gradle.properties: remove Linux JDK pin (rely on JAVA_HOME)
- .paul: phases plan, STATE+ROADMAP updates

Acceptance: A1 compile 3 iOS targets, A2 linkDebugFrameworkIosSimulatorArm64, A3 iosSimulatorArm64Test (33 tests, 0 failures), A4 assembleChartRealtimeXCFramework (ios-arm64 + ios-arm64_x86_64-simulator slices), A5 Android assembleRelease/publishToMavenLocal --dry-run.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-05-21 12:45:21 +02:00
dtrentin
73bbd9ddec feat(chart-realtime): v0.3.0 — dirty flag render, targetFps=30, iOS targets, KDoc, README 
- Dirty-flag render: dataVersion counter in RealtimeChartState, skip Canvas draw
  when no new data since last frame (zero GPU work when sensor idle)
- targetFps=30 default in ChartConfig (pass null for max display refresh rate)
- iOS targets: iosX64, iosArm64, iosSimulatorArm64 + Platform.ios.kt actual
- KDoc: RealtimeChart params, dataVersion, ChartConfig.targetFps, LodMode entries,
  AxisLabelMode entries
- README: fixed Maven coords, added LoD/AxisLabels/Material3 sections, updated
  feature list and performance notes
- Tests: RealtimeChartStateTest (17 tests, dataVersion + signal lifecycle)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-05-21 11:11:37 +02:00
dtrentin
554b67e630 refactor(buffer): MIN_MAX tier binning, remove MEAN lod mode 
- TieredBuffer: replace MEAN binning with MIN_MAX (min+max per bin).
  Mathematically composable: MIN(bin_mins)=global_MIN, MAX(bin_maxes)=global_MAX.
  Eliminates tier-boundary visual artifacts. TIER1/TIER2 capacity doubled (2 samples/bin).
- LodMode: remove MEAN. Only MIN_MAX and LTTB remain.
  MEAN introduced values never present in raw signal — disinformation for sensor data.
- ChartConfig: default lodMode changed to MIN_MAX.
- Version: 0.4.1-SNAPSHOT → 0.5.0-SNAPSHOT

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-05-21 08:57:58 +02:00
dtrentin
b9ee5ddfa3 Initial commit: chart-realtime KMP library v0.4.1-SNAPSHOT 
- 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>
 2026-05-21 01:48:51 +02:00