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H3: Uber’s Hexagonal Hierarchical Spatial Index H3: Uber’s Hexagonal Hierarchical Spatial Index. For map projection, we chose to use gnomonic projections centered on icosahedron faces. This projects from Earth as a sphere to an icosahedron, a twenty-sided platonic solid. eng.uber.com |
H3: Uber’s Hexagonal Hierarchical Spatial Index
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