Files
he11lib/tests
Martino Ferrari ef57ec81e4 Rewrite ModalFitter.fit around the CameraModel tolerance mechanism
The optimizer's parameter vector is now built dynamically: LG
coefficients, per-plane center, and both pointing angles stay always
free; each CameraModel field and each plane's z join the fit (bounded to
its +/- tolerance) only when its paired tolerance is nonzero, and are
otherwise substituted as fixed constants.

Also seeds the first mode's coefficient with a small imaginary offset
(1.0 + 0.05j instead of 1.0 + 0j) rather than exactly on the real axis:
for a single mode, intensity depends only on |c| (phase is unobservable),
so Im=0 sits exactly on that flat/degenerate valley, aligned with a
coordinate axis, giving a zero-gradient Jacobian column that destabilized
trf's trust-region step and prevented pointing-angle recovery from a
default (0, 0) initial guess.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-03 12:04:47 +02:00
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