Stage 0 of ADR #282. A lattice node is k/240, which has no exact binary
representation, and a stored coordinate is a float. Nobody could say how much of
a real plan is affected, and Optimize promises to remove coordinate noise
without a definition of noise that can be checked.
latticeProfile splits every coordinate of the model into three populations,
because they are three different problems: exactly on a node, near a node but
not exact, and legitimately off grid. The middle one is the defect class behind
\#258, \#279 and the non-converging Optimize; the last one is authored geometry
the current model allows and must not be called a violation.
Measured on the owner's installation: space 1 has 208 coordinates, 33.65 per
cent exactly on a node and 65.38 per cent in the noise class; space 2 has 21.23
against 78.77. The worst deviation is 8e-8 of a step — invisible, and enough to
put a wall key in the neighbouring bucket.
The counterpart is what makes it worth having: every shipped fixture has zero
noise, all of its off-grid values being authored. Our own test data therefore
cannot reproduce this class by construction, which is why the owner finds these
defects and the gates do not. A test pins that property so it cannot drift.
No violations are produced, no gate turns red, and nothing is repaired: what to
do with a vertex 8e-8 from a node is the owner's decision, and this measures its
price first.
Issue: #283
User-Visible: no
Nine of the last ten specs are one class of defect, 23 fix commits in thirty
days, 595 tolerance mentions across ten geometry modules, one every seventh line
in resize.ts. The specs rate their own risk at 9 and 10 of 10, and two titles
show where that arrived: a nearly orthogonal T junction, and a union failure
that must merely damage less.
The ADR names three properties of the data model that produce the stream — a
float coordinate on a 1/240 step, an identity derived instead of stored, and a
wall living in two representations at once — and records four stages against
them. Stage 0 is accepted for implementation; the rest are direction, in the
same sense as #34.
Issue: #282
User-Visible: no
Package the reviewed Optimize reconciliation, safe fixed-topology Resize and wall-union isolation fixes from #276, #277 and #278 as the eighth v1.67 prerelease candidate.
Issue: #278
User-Visible: yes
Accept the complete 106-frame Linux golden artifact. All 104 existing scenarios passed; six byte-only PNG refreshes have zero pixel diff, and both new safe-resize light/dark candidates were manually reviewed.
Issue: #277
User-Visible: no
Release: v1.67.0-beta.8
Baseline-Reviewed: https://github.com/Matysh/houseplan-card/actions/runs/32689229827
Use paired ABBA/BAAB batches for the p95 gate and accept the complete 104-frame Linux golden artifact. The four new #276 scenes were visually reviewed; every existing scene passed, and the nine byte changes contain zero pixels above their comparison threshold.
Issue: #276
User-Visible: no
Release: v1.67.0-beta.8
Baseline-Reviewed: https://github.com/Matysh/houseplan-card/actions/runs/32684802336
Sergey Matyunin