(root)/trunk/profitmandi-cron/ – Rev 37424
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- Rev 37424 2026-08-26 19:05:20
- Author: amit
- Log message:
- Oppo/Realme slider captcha: size the calibration nudge from the gap
r37422 replaced a 15px calibration nudge with a fixed 60px, which fixed the
under-measurement but introduced the opposite error. Production data over 764
calibrations shows 45% ended UNUSABLE (closed <= 0, i.e. the piece shot past the
hole and the measured gap grew instead of shrinking), and among gaps under 60px
it was 85%.
The nudge is now sized from the gap -- aim to close about half of it -- and
clamped to [10,60]. Replaying the real observed gap distribution: unusable and
overshoot fall from 21% to 2%.
The observed travel ratio in production is 1.13 circle px per slider px, against
1.68 measured locally; it varies with render scale, which is why the ratio is
still derived from the measurement. ASSUMED_RATIO only sizes the probe, and 1.7
errs toward a smaller nudge, which is the safe direction here.
Oppo is currently solving 43% (was 9% before r37422). Realme carries the same
widget and the same defect and has not been deployed yet.