Expand description
Coordinate / attribute quantization advisor (--quantize-coords,
--quantize-attrs-auto): derives candidate precision from the max-zoom
ground resolution and verifies the win by trial-encoding the sample.
Quantization is the repo’s #1 measured size lever (coords −25..47% on
coord-heavy datasets, attrs up to −80% per Float64 column), but it is
LOSSY, so this advisor never speaks without evidence: every recommendation
is backed by a real crate::measure::measure_sample trial encode
through the production stt-core encoder, compared against ONE shared
baseline measurement at build defaults. Too-small samples produce no
advice at all.
Functions§
- advise
- Recommend coordinate / attribute quantization when a trial encode of the loader sample measures a real shrink versus the build-default baseline.