Advancing ocad.pgp.version (or the web counterpart) could succeed while the
merged alias table write failed, so a later launch skipped migration against a
stale file and permanently lost the new aliases. Gate the version write on the
alias-table write (native fs::write / web set_item) succeeding.
Existing installs only got newly-added default aliases when storage was
absent; load_aliases parsed an already-present ocad.pgp or web alias table
verbatim, so R/RA/RE/REA remained unknown to profiles seeded before version 2.
Introduce a versioned default merge: track the default-table version each
profile has seen (wordless ocad.pgp.version marker / localStorage key) and
fold in only the aliases introduced after that version, never overwriting
user-defined mappings or resurrecting deliberately removed aliases. On first
migration the merged table and the advanced marker are persisted so later
launches skip the already-delivered aliases.
The shaded surface of a curved solid was visibly coarser than its own
wireframe: the wire ran along the true rim while the facets cut inside it.
Two things were wrong, and only one was the tolerance.
`facet_res` is a resolution multiplier — the same one `scale_lod` divides the
fallback sampler's chord fraction by — and the kernel path was using it as a
sag in world units. At the default that asks for a whole unit of departure, so
nothing smaller than a metre subdivided at all and a face was only ever as
round as its own boundary. It is a fraction of each surface's own radius now,
which carries no assumption about the drawing's units.
And it is the *edges'* fraction, shared from `EDGE_CHORD_FRAC` rather than
copied. Those edges are drawn over these faces; sampling the two differently
is what put the wire across a facet instead of along its corners. `facet_res`
is deliberately not applied either, since the edges it must line up with are
built once at highest detail and never scaled.
A torus is measured by its tube rather than its ring — the tube is the tighter
bend, and sampling to the ring leaves the section a hexagon.
The primitive-volume test claimed a mesh can never read over its true size.
That holds for a convex solid, where every chord lies inside; a torus is not
one, and across the inside of its tube the chords fall outside the material.
It passed before only because the sampling was too coarse to show it.
Co-Authored-By: Claude Opus 5 <[email protected]>
Round things came out with too few sides in drawings measured in metres, and
zooming in did not help.
The chord tolerance was floored at five thousandths of a world unit. That is
a fine sampling for a part measured in millimetres and a coarse one for a
building measured in metres: a ten-centimetre pipe got about ten sides and a
five-centimetre bolt about seven. The floor was also what stopped the frame
asking for better, so closing the camera on one changed nothing.
A chord height is an absolute length, so any fixed value carries an assumption
about the drawing's units. Bounded against the curve's own radius instead,
which carries none. The two ends are really segment counts: a circle gets at
least about fifty sides and never more than about a hundred and sixty,
wherever the camera is and whatever the drawing is measured in. Between them
the frame still decides, so a curve fills in as the camera closes on it.
Straight runs keep the frame's own tolerance — there is no curvature to
sample, and two ends are all a line has.
Co-Authored-By: Claude Opus 5 <[email protected]>
Hakan Seven