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v1.3.1 — detector-pixel spec-overlap + auto-load fix

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@fengwusun fengwusun released this 09 Jun 17:24
· 3 commits to main since this release
v1.3.1
f329b30

Headline: spec-overlap renderer matched against direct jwst.assign_wcs ground truth for all 9 (disperser, filter) combos.

Highlights

  • Three-colour MPT-style overlay — pink (Mask Stuck) / orange (Masked) / purple (Mask Conflict). Chain propagation along touching slitlets. Per-shutter alpha stacks with conflict count.
  • Detector-pixel-accurate spec-overlap
    • Subtractive x-range filter drops V2-distance false positives (e.g. G140M/F070LP at ΔV2 ≈ 84″ where spectra don't physically reach each other).
    • Additive cross-quadrant detector-y check catches MSA-row blind spots (e.g. G140M/F100LP Q4 s=34 ↔ Q2 s=33 — same detector y, different MSA s).
    • v2_overlap_distance is now per-combo, measured from direct slit_frame→detector traces.
  • Orange band clamped to N+2 rows — sharp visual cut-off across the full dispersion range.
  • Examples auto-load fix — vmpt examples download now defaults to ~/.vmpt/examples/; in-app "Load Abell 370 / RXCJ0600 example" buttons find it there automatically. Works for pip-installed copies; no restart needed.

Install / upgrade

pip install --upgrade jwst-vmpt
vmpt examples download   # writes to ~/.vmpt/examples (was CWD)
vmpt                     # the Load * example buttons now work end-to-end

Numbers

  • 144 keys in data/dispersion_cutoffs.npz (36 MB, included in the wheel).
  • 188 tests passing; new tests/test_spec_overlap_purple.py regression suite.
  • Spec-overlap refresh ≈ 25 ms per click on PRISM and G140H/F100LP.

See CHANGELOG.md for full notes.

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