Should Extent be per-tile rather than per-layer ?

mapbox / vector-tile-spec

Mapbox Vector Tile specification

https://www.mapbox.com/vector-tiles/specification/

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Should Extent be per-tile rather than per-layer ? #16

Closed strk closed 8 years ago

strk commented 10 years ago

The documentation for "extent" says "The bounding box in this tile spans from 0..4095 units", but the "extent" is a parameter of a layer rather than a tile. Can different layers in a tile have different "extent" ?

flippmoke commented 8 years ago

I was was through old tickets as we were preparing to release a new version of the spec and wanted to make sure we addressed issues. This is because we attempt to make a layer a full set of information such that multiple layers can simply be concatenated together quickly to make a new dataset. The layers are intended to be independent. Therefore, we do not store anything globally.

flippmoke commented 8 years ago

Closing this ticket for now, if further discussion is desired feel free to reopen.