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c986ced14d7aa82d151f3b8d957b295ebfa2cceb
editor/packages/mcp/examples/coordinate-conventions-demo.json
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Marcel GruberGitHubMarcel Gruber
 c986ced14d docs(mcp): document plan↔world coordinate convention (#356) 
Adds a Coordinate conventions section to packages/mcp/README.md and a 71-node MCP demo scene that exercises every claim it makes. Closes #337.

Covers: right-handed scene with X/Z ground plane and Y up; metres for lengths and radians for rotations as Euler [x, y, z]; the [x, z] → (x, y, z) plan-to-world mapping with no sign flip in the stored contract; level/building-local framing (world only under identity transform); rotation-not-reflection caveat for the 2-D plan panel and the iso-default top-down azimuth offset; a worked 30° rotated slab example; and the wall-local-metres trap for door/window/place_item coordinates.

Companion: examples/coordinate-conventions-demo.{json,md} with a reference compass at the origin and Demos A/B/C/D illustrating axis-aligned baseline, the rotated example, and the page-intent vs world-result L pair.

Co-authored-by: Marcel Gruber <marcel@grubertech.com>
2026-06-03 13:41:52 -04:00

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