2 384
edições
Generalized Geohash/pt: mudanças entre as edições
Generalized Geohash/pt (ver código-fonte)
Edição das 15h07min de 8 de maio de 2023
, 8 de maio de 2023→Representação geometrica: add fig
(→Representação geometrica: nova fig) |
m (→Representação geometrica: add fig) |
||
| Linha 167: | Linha 167: | ||
The illustration shows how to obtain the grid of 32 rectangular cells from the grid of 64 square cells. | The illustration shows how to obtain the grid of 32 rectangular cells from the grid of 64 square cells. | ||
[[Arquivo:HilbertCurve64grid-merging32grid.png|centro|580px]] | |||
The most important property of Geohash for humans is that it '''preserves ''spatial hierarchy'' in the ''code prefixes'''''. <br />For example, in the "1 Geohash digit grid" illustration of 32 rectangles, above, the spatial region of the code <code>e</code> (rectangle of greyish blue circle at position 4,3) is preserved with prefix <code>e</code> in the "2 digit grid" of 1024 rectangles (scale showing <code>em</code> and greyish green to blue circles at grid). | The most important property of Geohash for humans is that it '''preserves ''spatial hierarchy'' in the ''code prefixes'''''. <br />For example, in the "1 Geohash digit grid" illustration of 32 rectangles, above, the spatial region of the code <code>e</code> (rectangle of greyish blue circle at position 4,3) is preserved with prefix <code>e</code> in the "2 digit grid" of 1024 rectangles (scale showing <code>em</code> and greyish green to blue circles at grid). | ||
<!-- [[File:Geohash-OddEvenDigits.png|800px|center]]--> | <!-- [[File:Geohash-OddEvenDigits.png|800px|center]]--> | ||