Five reviewers (PDF, snap, commands, otrack/help, printing) covered the
eight issue-fix commits; every blocker and major is fixed here.
Printing (#1261 follow-up):
- printto params now quote the printer name and pad the empty driver/
port slots handlers substitute ("Microsoft Print to PDF" was split
into three arguments and the job silently lost).
- Level-2 enumeration also merges when the level-4 list omits the
configured default, not only when it is empty; a level-2 error no
longer discards the default-printer merge.
- The printer list loads in a background task instead of blocking the
UI thread (level-2 queries can wait out RPC timeouts).
- CTB registration: collisions keep the existing file but now say so,
and only container-parsed tables are registered (the permissive
zlib heuristic stays session-only so junk cannot persist).
Snapping (#1030/#1319 follow-up):
- Edge-wire key_vertices gain NaN separators: junctions between
unrelated mesh edges no longer fabricate phantom midpoints.
- The wire cap counts segments (not separator points) and decimates
instead of dropping, so dense meshes keep partial endpoint coverage
instead of losing snap entirely.
- f64 endpoint recovery is a one-shot per-wire map instead of an
O(points x geoms) rescan on every mouse move.
Commands (#1082 class): the same typed-value-on-web bug also hit
CYLINDER/BOX/WEDGE/CONE/PYRAMID heights, HELIX final height (wrong
value, not just dropped), and SWEEP reference/new lengths — all now
commit as text at exactly those steps, each pinned by a regression
test that fails without the override (plus the missing native-route
twin for EXTRUDE).
PDF (#702 follow-up): heavy CTB pens bypass the Form XObject (their
half-width exceeds the /BBox SDF margin and was flat-chopped), CTM
scale entries round to 4 significant digits (0.01 quantized small
text by ~1%), degenerate quads skip emission, the atlas snapshot is
taken once per export instead of per text entity, and the rounding
comments no longer conflate page points with glyph-plane units.
OTRACK (#1313 follow-up): the guide's polar quantization diverges
from the snapper's drafting-gated polar during window-corner drags —
documented; an orphaned grid-step doc block is reunited with its
function.
A text-heavy sheet re-emitted every glyph occurrence as a full page-
space outline (~4 KB per character at f32 round-trip precision), so
PRINT of a simple Vietnamese-text A4 produced ~128 MB. Each unique
glyph is now baked once into a shared compressed Form XObject keyed
by atlas tile (mirroring the image XObject cache, shared across
pages); repeats replay one cm + /Do. Glyph path points, CTM entries,
and decoration quads round to 0.01 pt (~3.5 µm, visually lossless);
run-level colors dedupe outside the per-glyph q/Q so state persists;
the stroke-font pen is re-set per glyph under its CTM, pre-divided by
the quad's area scale.
200-entity Vietnamese repro: 51.5 MB -> 1.28 MB (40x, ~99 B per
glyph occurrence); stroke-font pages 2.0x; hatch/polyline pages
byte-identical. Validated lossless by 300 dpi Ghostscript pixel diff
(residuals confined to 2 px glyph-edge phase) and pypdf structure
check. Raster quality presets and vector geometry are untouched.
Afonsop