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Geometry viewer: tetra face-centre probe arrow ends on the face, not the cube corner - #60

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ThinkOffApp merged 1 commit into
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fix/tet-face-arrow
Sep 7, 2026
Merged

ThinkOffApp merged 1 commit into
mainfrom
fix/tet-face-arrow

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Reported by @Petrus on the live viewer: "the blue part extends out of the 4q".

Cause: the blue face-centre probe arrow used the same D/2 step along (1,1,1) as the vertex arrow, so its tip landed at (D,D,D), the cube's far corner, three times past the Q2Q3Q4 centroid at (2D/3,2D/3,2D/3) and outside the tetrahedron. The red (vertex) and green (edge midpoint) arrows already ended exactly on their features.

Fix: step D/6 along (1,1,1), tip = centroid. Directions unchanged, so the in-wedge statement in the comment still holds. Applied to the live viewer too.

🤖 Generated with Claude Code

…the cube corner

The blue face-centre arrow used the same D/2 step along (1,1,1) as the
vertex arrow, so its tip landed at (D,D,D), three times past the Q2Q3Q4
centroid at (2D/3,2D/3,2D/3) and outside the tetrahedron, while the red
(vertex) and green (edge midpoint) arrows ended on their features. Step is
now D/6 so the tip is the centroid. Reported by petrus on the live viewer.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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chatgpt-codex-connector Bot commented Sep 7, 2026 •

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📝 Code Review ✅ Completed 2026-09-07T01:06:00.984394Z f134dc4 PR opened
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@ThinkOffApp
ThinkOffApp merged commit 45a16bd into main Sep 7, 2026
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