Function computeIndexAndSegment

computeIndexAndSegment<T extends string>(
    row: number,
    col: number,
    sections: readonly T[],
): { pointIndex: number; segmentType: T }
Compute the point index and segment type a grid cell names.

The cell is [section][point] in every orientation: the highlight grid, the braille cell and the movable grid of a sectioned trace all share that frame, and the orientation only says which screen axis the points run along.
Type Parameters
- T extends string
Parameters
- row: number
  The row coordinate from UI/ViewModel
- col: number
  The column coordinate from UI/ViewModel
- sections: readonly T[]
  Array of available section names (e.g., ['open', 'high', 'low', 'close'])
Returns { pointIndex: number; segmentType: T }
Object containing pointIndex and segmentType
- Defined in util/navigation.ts:26

src