Complete-grid lux reconciliation
After a P01-Pn grid and its reading conditions have been recorded, the calculator retains the complete entered set and exposes its low and high point IDs rather than reducing the work to three anonymous values.
Complete-grid evidence sequence
Keep geometry, field conditions and descriptive aggregation in separate records.
- 1Create the grid
Generate or record the P01-Pn layout and coordinates.
- 2Record conditions
Keep Plane ID, meter, daylight and control state with the field sheet.
- 3Enter every point
Use the same continuous P01-Pn order as the record.
- 4Review extremes
Read low and high IDs beside the original grid and condition evidence.
- 5Carry bounded values
Use a compatible aggregate only in a later ratio or comparison owner.
Evidence boundary
Each owner keeps one part of the field sequence distinct.
| Owner | Keeps | Does not establish |
|---|---|---|
| Grid layout | Coordinates and point IDs. | Field readings or statistics. |
| Grid record | Raw points, plane and condition references. | A complete-grid aggregate. |
| This calculator | Completeness-gated descriptive statistics. | Thresholds, causes or compliance. |
| Uniformity ratio | Ratios from a compatible aggregate. | Raw point-set completeness. |
Complete means every declared point
A complete-grid average has a stronger review trail than a hand-picked subset because its expected count and P01-Pn identity remain visible. A missing, duplicate or reordered point stops the calculation rather than being silently corrected.
Descriptive, not a verdict
Low-to-average, high-to-average, spread, population SD and CV describe the entered set. They do not select a standard threshold, establish a sampling method, explain a low point or approve a lighting outcome.
Keep the source record
The grid record remains the owner of coordinates, assessed plane, meter state, daylight, controls and observations. The local PDF record links back to those sources but does not replace them.