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UAT-8a: rotate the rect, not a separate axis vector

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reduceAxisState 'rotate' now changes state.rect.angle and re-derives
state.axis via axisFromRect(newRect). The rectangle rotates as a whole;
the axis for Measure is derived from the rotated rect's long side.

2 new regression tests: rect.angle changes on rotate, axis is
re-derived from rotated rect. 109/109 tests green.
This commit is contained in:
Ty
2026-09-14 11:23:00 -07:00
parent 0d06e6f7b7
commit f00c4a7460
2 changed files with 23 additions and 2 deletions
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frontend/src/lib/core/axis.js
+4 -2
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@@ -274,8 +274,10 @@ export function reduceAxisState(state, action) {
case 'rotate': {
const angle = action.angle;
if (angle === 0) return state;
const newAxis = rotateAxis(state.axis, angle);
return { ...state, axis: newAxis, approved: false };
// Rotate the RECTANGLE, not a separate axis vector. The rect's angle
// changes, and the axis is re-derived from the rotated rect.
const newRect = { ...state.rect, angle: state.rect.angle + angle };
return { ...state, rect: newRect, axis: axisFromRect(newRect), approved: false };
}
case 'approve': {
return { ...state, approved: true };