Rotation via Double Reflection
Details
- External ID
- 49391168
- Source
- HN
- Company
- —
- Product
- Rotation via Double Reflection
- Website domain
- laszlokorte.de
- Launched
- Aug. 21, 2026
- Cohort
- —
- Upvotes
- 61
- Upvotes percentile
- 0.8817204301075269
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Description
While studying Geometric Algebra I have built some interactive visualization to demonstrate how geometric transformations (rotation, scaling, translation) can be constructed by just composing reflections.Accepting reflection as the most elementary geometric operation was an eye opening moment for me. I think some of you might enjoy the interactive visuals.
Enrichment
- Theme
- creative coding and visual experiments
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- mathematics library for rotation via double reflection
- Manually corrected
- False
Could you build this?
Yes It is an educational interactive math visualization showing geometric transformations using standard 2D/3D canvas rendering (like Three.js or SVG).
Discussion
15 comments analyzed.
Competitors mentioned: Alan Paeth's three-shear rotation algorithm, Rotation matrices with trigonometric functions, Complex number rotation (e^ai)
Concerns raised: Construction doesn't generalize correctly to 4D+ dimensions, Reflection framed around vectors instead of planes limits higher-dimensional applicability, Still requires trigonometric functions to construct initial vectors/angle, Vague mathematical explanations in higher dimensions section
Feature requests: Consistent color scheme across all diagrams (2D, 3D, circular reflection), Label vectors with their variable names (s, u, v) in diagram annotations, Rework reflection to use plane-based framing instead of vector-based
Competitors
Other products that read as similar to this one — 102 launches clear the similarity bar, closest 8 shown.
Attention rank: #22 of 103 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 296 days after the earliest competitor.
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Other launches for this product
- No other launches for this product.
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