on_the_level

thejayman77/on_the_level

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Author	SHA1	Message	Date
thejayman77	99c2b12192	Address Codex measurement-core review - Calibration: still derived in angle space via the 180-degree flip, but now APPLIED in vector space as a reference-orientation rotation (Rodrigues alignment for Surface, Z-rotation for Edge), exact away from zero; tests at 30 degrees, cross-axis, and edge-polarity cases. - Angle relative zero: stores the gravity direction vector; relative reading is the angle between directions, so cross-axis movement is honest. - Edge mode: precise geometry documented (either long edge down, gravity along +/-X), placement-validity guard so e.g. Edge mode never locks on a phone lying flat; UI shows repositioning hints. - Lock/readout coherence: locked label states the tolerance (exit threshold) so the rounded readout can never contradict it; pipeline acceptance tests pin the invariant. - Sensor-vector contract: documented and pinned by SensorContractTest. The suggested negation of gravity/accelerometer fallbacks is NOT applied: per Android SensorEvent docs, a stationary flat device reads +9.81 on Z (the gravity reaction), matching the rotation-vector path as-is. The contract tests prove all paths agree. 38 tests passing. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-11 19:45:53 -04:00
thejayman77	2a48d79c77	Scaffold Android project per BRIEF.md Single-module Kotlin/Compose app with manual DI container. Pure-Kotlin measurement math (orientation mapping, two-sample per-mode calibration, EMA smoothing, lock hysteresis, display deadband) fully unit-tested. Sensor fallback: game rotation vector -> gravity -> low-passed accelerometer. Live Level (manual Surface\|Edge) and Angle (hold-to-zero) scaffolds; Ruler/Tools placeholders; stub Pro entitlement. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-11 18:34:57 -04:00

Author

SHA1

Message

Date

thejayman77

99c2b12192

Address Codex measurement-core review

- Calibration: still derived in angle space via the 180-degree flip, but now
  APPLIED in vector space as a reference-orientation rotation (Rodrigues
  alignment for Surface, Z-rotation for Edge), exact away from zero; tests
  at 30 degrees, cross-axis, and edge-polarity cases.
- Angle relative zero: stores the gravity direction vector; relative reading
  is the angle between directions, so cross-axis movement is honest.
- Edge mode: precise geometry documented (either long edge down, gravity
  along +/-X), placement-validity guard so e.g. Edge mode never locks on a
  phone lying flat; UI shows repositioning hints.
- Lock/readout coherence: locked label states the tolerance (exit threshold)
  so the rounded readout can never contradict it; pipeline acceptance tests
  pin the invariant.
- Sensor-vector contract: documented and pinned by SensorContractTest. The
  suggested negation of gravity/accelerometer fallbacks is NOT applied: per
  Android SensorEvent docs, a stationary flat device reads +9.81 on Z (the
  gravity reaction), matching the rotation-vector path as-is. The contract
  tests prove all paths agree.

38 tests passing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-07-11 19:45:53 -04:00

thejayman77

2a48d79c77

Scaffold Android project per BRIEF.md

Single-module Kotlin/Compose app with manual DI container. Pure-Kotlin
measurement math (orientation mapping, two-sample per-mode calibration,
EMA smoothing, lock hysteresis, display deadband) fully unit-tested.
Sensor fallback: game rotation vector -> gravity -> low-passed
accelerometer. Live Level (manual Surface|Edge) and Angle (hold-to-zero)
scaffolds; Ruler/Tools placeholders; stub Pro entitlement.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-07-11 18:34:57 -04:00

2 Commits