Polyhedra Viewer

Learning and science

interactive math visualisation

SHOW HN2018

Polyhedra Viewer

Polyhedra Viewer: app to explore the relationships and transformations between various convex polyhedra.

polyhedra.tessera.li

#polyhedra#convex polyhedron#wythoff construction#conway operators#geometry visualization

123points
30comments
#348of 2,155 in 2018
Top 17%of 2018 by points

How HN took it

LovedMost comments that take a side are positive

7 positive, 6 neutral or asking, 1 mixed, 0 critical, out of 14 comments about the project. Thread score +0.35.

Design: 3 for, 0 againstExecution: 2 for, 0 againstIdea: 1 for, 0 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Beautiful, well-presented and informative

    From 3 comments
    • Congratulations, lot of work put in a very well refined and presented page!
      kelsolaar on HN
    • It's a treat. It's like a well-produced color mathematical atlas come to life.
      lrc on HN
    • This is extremely informative and mesmerizing!
      apexal on HN
  • Fun toy for understanding shape relationships

    From 1 comment
    • I immediately tried to construct my favorite obscure polyhedron (the rhombic dodecahedron) and found I simply could not take the dual of the cuboctahedron! :P That aside, this is…
      MrEldritch on HN

Objections

  • Catalan solids not included yet

    From 1 comment
    • Unfortunately the Catalan solids aren't in there yet, because I wanted to focus on the regular-faced polyhedra for now! Perhaps in a future update :)
      tesseralis on HN
  • Definition of uniform polyhedra is inaccurate

    From 1 comment
    • This is fantastic, I love it! I've been looking for something like this. Your definition of "uniform" doesn't look quite right: It's not enough for the symmetry group to be…
      yshklarov on HN

Requests

  • Keep shapes spinning with inertia after a swipe

    From 2 comments
    • Is there any way to keep the objects spinning? It'd be nice if you gave them a flick and then they kept spinning under their own inertia.
      grey-area on HN
    • The shapes remind me of chemistry, molecules, enzymes, proteins, viruses. I would add 1 thing only: physics to the interactions, so the shape will keep spinning after I swipe…
      dosy on HN
  • Net export for printable paper models

    From 1 comment
    • Excellent stuff!! It'd be great if you could flatten the shapes to printable A4 paper so kids can cut and build real models (and paint them, etc).
      sgroppino on HN
  • Stellation and export features

    From 1 comment
    • Really neat! 2 features which might cool: stellation and .obj export Iirc these things apply to 2d tilings also? I remember trying to do some esher-esque drawings using such…
      mpax on HN
  • VR mode

    From 1 comment
    • Wonderful. 1. Do you plan an open source licence for any of the underlying code? 2. Is the construction parametric or is it based on a large catalogue of the various polyhedra…
      andybak on HN

Questions

  • Is the code open source?

    From 1 comment
    • Wonderful. 1. Do you plan an open source licence for any of the underlying code? 2. Is the construction parametric or is it based on a large catalogue of the various polyhedra…
      andybak on HN
  • Can operations be stacked?

    From 1 comment
    • Wonderful. 1. Do you plan an open source licence for any of the underlying code? 2. Is the construction parametric or is it based on a large catalogue of the various polyhedra…
      andybak on HN
  • Can models be exported as glTF?

    From 1 comment
    • How would I export these shapes for use in threejs or other web based 3d display? Can they be exported as gltf format?
      hguhghuff on HN

Alternatives named

  • Wythoff and Conway operator tools by a commenter (Unity)

    From 1 comment
    • Wonderful. 1. Do you plan an open source licence for any of the underlying code? 2. Is the construction parametric or is it based on a large catalogue of the various polyhedra…
      andybak on HN
  • Polyhedronisme

    From 1 comment
    • Great work! Have you seen this one? https://levskaya.github.io/polyhedronisme/ Also, you have probably seen Wenninger’s books, but if not those are great.
      jacobolus on HN
  • George Hart's virtual polyhedra

    From 1 comment
    • Polyhedra Viewer: app to explore the relationships and transformations between various convex polyhedra. This has been a passion project of mine for the last six months (with…
      tesseralis on HN

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

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