nx_biotwin_morpho.nx

nx_biotwin_morpho.nx -- BIOTWIN rung-1 LIBRARY: the MORPHOMETRIC-DERIVATION engine (board axis 8, COU-1). The biotwin board's computed gap_queue ranks morphometric-derivation #1 (it blocks 4 QOIs). This is the DERIVATION TRANSFORM: geometry -> numbers. It COMPOSES with the visualise-body substrate (nx_bodyatlas ba_sdf -- the same sovereign integer SDF being that the Gx north star ships and that QOI[0] visualise- own-body scores 833 on) and does NOT duplicate it. From the SDF it extracts geometric landmarks, then derives standard anthropometric morphometric axes -- and CARRIES PROVENANCE ON EVERY AXIS (which input landmarks, which transform, the input measurement resolution). Integer/fixed-point only (the no-float doctrine holds for derivation; the FEM/UQ float collision is a SEPARATE, still-unratified question). RULER (not ours): the banked anthropometric canon in knowledge/anthropometry_banked.txt -- 7.5-heads, leg/stature, arm/stature, shoulder/hip, fingertip-drop. The same external canon nx_anthro_gate grades the being against; this engine turns that gate's ad-hoc measurements into first-class, provenanced axes. THE FENCE (rule-26 never-brick applied to bodies): bm_fence_blocked() carries a PERMANENT PLANTED LIE -- a caller claim that a morphometric measurement is "genomic/clinical ready" -- and a CLAMP that forces it back to measurement-only every run. A morphometric MEASUREMENT can never be silently promoted to a clinical or genomic CLAIM: fence_blocked>=1 proves the clamp fires, mechanically, on every invocation. This composes with the board's axis-21 fence; it does not replace it. license_tier: ORIGINAL