a4b8b03a59
hull.py
- add invalidate() — clears _surface NURBS cache on in-place
offsets edit; fixes 3D viewer showing old geometry after drag
main_window.py
- call hull.invalidate() before load_hull() in
_on_offsets_edited_from_viewer so PyVista always rebuilds mesh
from the updated offsets
viewer_lines.py
- 4-layer drawing order: grid → control-net → hull-curves → nodes
- nodes changed from 4px white-blue circles to 6px orange squares
(_NODE_NORMAL #FF8000) — unambiguous visual language vs blue/green
hull curves
- _draw_cnet_bodyplan / _draw_cnet_planview helpers: thin muted
control-net mesh (transverse + longitudinal edges) drawn between
grid and bold hull curves, matching Maxsurf/DelftShip visual style
- waterline reference lines made more muted (_GRID_WL dotted)
- all old _GRID / _CPT_* references replaced with new palette
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>