Alignment was two disconnected menu actions. `Angle Alignment` ran the
registration with ref_angle_idx hard-coded to 0, no exposed parameters and
no way to retry; `Manual Alignment...` was a separate dialog that
deliberately refused to inherit the automatic result, so a bad fit meant
starting over by hand. Neither told you whether the alignment was any
good, and neither produced anything durable beyond an in-memory result.
Fusion -> Alignment Wizard... now covers all of it in three steps:
1. Correlate. Reference angle, DC threshold, source, rotation seed and
sign, search window, coarse step and fine grid are all on the page,
and Run/Re-run is repeatable. Angles start pre-rotated from the
stage angles in the file, so the page is informative before any
correlation runs. The verdict is a picture: every angle's DC mask
reprojected onto the shared canvas and summed, coloured by how many
angles cover each pixel, so a good alignment reads as one saturated
plateau and a bad one as a fringe of low-count halos. A per-angle
fit table flags angles that did not register or that disagree with
their stage angle by more than a degree.
2. Crop. An axis-aligned rectangle on that canvas, with numeric
canvas-pixel boxes synced both ways and a live size estimate.
"Fit to full overlap" uses a largest-rectangle sweep rather than a
bounding box: the overlap region of several rotated scans is roughly
a disc, whose bounding box has corners no angle covers.
3. Save. Writes the aligned, cropped stack to a new .sras.
Because the wizard replaces both actions it absorbs the old dialog's
by-eye nudge editor — without it, a scan the search cannot fit would
have no fallback at all. ManualAlignmentDialog is therefore deleted
rather than left orphaned, and its tests move to the wizard.
Two bugs found while driving it end to end and fixed here: QSpinBox
setRange clamps and emits valueChanged, which committed a 1x1 crop
before the default preset could run; and the mm round trip returns an
exact pixel boundary as 11.000000000000002, so a bare ceil() added a
spurious column on every rectangle edit.
Verified: 103 pass, the 6 test_stored_cache failures are pre-existing on
main, and tools/check_equivalence.py is byte-identical to main.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Scans come off the scope as v6; a new trailing CACH section (independent
SDCB/SFFT blocks, sized per-angle from the existing geometry table) lets
computed DC and FFT images be cached in place, bumping the file to v7 the
first time either is stored. The Convert menu's "Batch Compute DC and
Store"/"Batch Compute FFT and Store" actions run this across multiple
files in the background. compute_rf_image and the DC compute workers now
reuse cached v7 data instead of recomputing it.
Removes "Pre-process and Save as v5", which never supported v6 sources
and is superseded by in-place v7 caching. Legacy v2-v5 reading, including
v5's PREC section, is unaffected.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Drops the legacy Time Gate FFT-windowing feature and the SAW matched-filter
pipeline (SawPipeline, SawDiagnosticWindow, TemplateBuildWorker, and the
associated UI panels/channel modes) to simplify the viewer.
Adds native support for the SRAS v6 file format (scan_format.md), which
scans a different bounding box per angle instead of a uniform AABB. Scan
geometry (n_rows, n_frames, x_start) is now exposed per-angle in SrasFile,
with v2-v5 files populating those arrays uniformly so both formats share
one code path. Waveform data is memory-mapped per angle to handle v6's
ragged layout, and aborted/truncated v6 scans are handled gracefully.
"Pre-process and Save as v5" is disabled for v6 files since the flat v5
layout can't represent per-angle geometry.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Thomas Ales