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Improved consistency of 'HANDLE_DISTANCE_UNIFORM_M' calculation placement #8

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Improved consistency of 'HANDLE_DISTANCE_UNIFORM_M' calculation placement #8

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3 changes: 1 addition & 2 deletions spec/FIT_STANDARD.md
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Expand Up @@ -282,6 +282,7 @@ These fields define the X-axis interpretation for curve data on each Record:

- Axis metadata fields MUST appear together on each Record containing curve data
- For Type=TIME_UNIFORM_MS with known drive time: `InstrokeSampleInterval = drive_time_ms / (point_count - 1)`
- For Type=HANDLE_DISTANCE_UNIFORM_M with known drive length, `InstrokeSampleInterval = DriveLength / (point_count - 1)`
- For Type=OAR_ANGLE_UNIFORM_DEG: Domain is [Catch, Finish] angles (from fields 11-12)
- Type=UNKNOWN indicates shape-only data (for pattern analysis, not absolute plotting)
- Producers SHOULD strive for consistency between axis metadata and stroke scalars, but consumers SHOULD NOT enforce strict validation
Expand All @@ -299,8 +300,6 @@ Recommended curve type names and encoding (Y-axis scale in developer field descr

Curve samples are **uniformly spaced** along the declared abscissa (fields 90-92). Non-uniform source data MUST be resampled before export or stored in a companion JSON file.

For **HANDLE_DISTANCE_UNIFORM_M**, sample index `k` maps to handle position `k × Δm` from catch, with Δm = `DriveLength / (point_count - 1)` when drive length is known.

### 6.5 Curve Array Format

Curve data MUST be encoded as **UINT16** arrays (developer fields with array size > 1):
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