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S2 cell hierarchy

Also called S2 geometry, S2 library.

Hierarchical decomposition of the sphere into quadrilateral cells indexed along a Hilbert curve.

Hierarchical decomposition of the sphere into quadrilateral cells indexed along a Hilbert curve.

About this page

The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.

LadderLevelWhat the next level needs
Human proofH0 no proof
  • add a proof in proofs/ (06.5)
LeanL0 no Lean part
  • name a Lean module in the lean field (07)
VisualV0 none
  • add viz/scene.ts or a figure (10)
WritingW0 stub
  • The abstract type
  • one source with a locator