AddROI now renders azimuthal ROIs in addition to box and circle ROIs:
inner/outer arcs at the Q (d) bounds and, for a sector, the two radial
edges at the phi bounds. The per-pixel phi comes from the same
DiffractionGeometry::Phi_rad used to assign ROIs, so the overlay matches
the ROI footprint exactly (including wrap-around sectors). Full-ring
azimuthal ROIs draw as two concentric arcs.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
leonarski_fandClaude Opus 4.8
2bd276ae1b