[AlexZ005]

52-measure — V1 measure in VR + V2 align / distribute / drop from the VR radial

Base: the 53 union (origin/feat/53-int, started early per the 52 rules); 52-int merges v1.43.0 into feat/52 first.

V1 — Measure in VR

• Tools ▸ Measure (radial) arms a trigger tool. Each trigger press puts a point down, snapped through the same snap-engine search as the desktop (vertex / edge / face, the measure flags) inside a 3° cone around the laser. A virtual camera down the ray turns the engine's px radius into an angle.
  • The desktop bias is scaled to the cone. Unscaled, an edge seen edge-on beat a corner 1.2° off (measured on IWER).
  • A raw point lands on the grid when grid snapping is on.
• Chains: each segment shows its length, each joint its angle, and the chain a total. A double tap (or the Measure ring's Keep) keeps the chain as a 48 B2 measurement item (replicated, undoable, saved). While the tool is up, the radial opens on the Measure ring: Keep · Undo point · Discard · Snap · Done.
• Selected ▸ Edit measurement: a press near a point (judged by angle) picks it up; the next press puts it down, snapped. Each placed point is one undo entry. This uses measureEditStep, which is now shared with the desktop click (desktop behaviour unchanged).
• Labels: VRMeasureLabels.svelte draws troika text on a dark plate. Each label faces the viewer and is a constant 0.03 rad tall, so it reads the same near and far. layoutLabels keeps labels from overlapping.
• Hands: a pinch says "pick up a controller" and adds nothing.

V2 — Arrange from the radial

• Selected ▸ Arrange (2+ objects) is one ring, which keeps the radial's two-level rule. Sectors:
  • Axis: cycles X / Y / Z
  • Align min / centre / max
  • Even centres / Even gaps (3+ objects; greyed below that)
  • Drop to ground
  • Align to: Selection / Active
• Every sector is data (vr/arrangeCore.js) naming the same align.js call the desktop makes. That gives the same results, one undo entry, and replication through the move path.

Proof

• vitest vrMeasureCore (14) and vrArrangeParity (23). The parity test runs the real align.js on two identical scenes, one through the desktop call and one through the ring sector, and checks they land the same. Counterfactual: mapping gaps → centres turns 4 checks red.
• IWER suite vr-measure-iwer (two peers): 71 checks green. Rows: Tools from the stick · corner snap (snap-off counterfactual in-suite) · labels facing and growing with distance · double-tap keep, synced to B · grid · edit + undo on both peers · hands · Arrange by stick with one undo on both peers · frame cost.
• Frame cost (IWER, Quest 3 profile): 0.16 ms/frame (hover search 0.24 ms at 30 Hz, labels 0.06 ms/frame). The labels add 20 draw calls for a 4-point chain.
• Regression battery green: measure-tool · align-arrange · vr-radial-menu · vr-multiselect-ring · vr-iwer · vr-ungroup · vr-props-panel · vr-box-select. svelte-check is at baseline (299/39), and full vitest is green.
• Eye shots are in ~/.code/lanes-30/after-52/52-measure/.

Shared-file touch points (small additive edits)

• vrRadialMenu.js: one import, one call in registerBuiltins, ringTitle('measure'), and Edit mesh hidden for a measurement item.
• vr/iconData.js: six icons appended.
• debugHooks.js: four rows.
• MeasureOverlay.svelte: draws items in VR and mounts the VR labels.
• measure.js: exports MEASURE_TARGETS / MEASURE_BIAS / RADIUS_MOUSE and measureEditStep.
• tests/e2e/vr-radial-menu: the Tools list gains Measure.

Owed on a real Quest (int + device checklist)

Laser feel and the 3° cone, label legibility at the true eye resolution, haptic ticks, double-tap timing, and how the Arrange ring reads.

🤖 Generated with Claude Code

[AlexZ005]

In main via 52-int: feat/52 was merged into feat/52-int and released in 1.45.0 (#482, tag v1.45.0 e59e96a, live on production).