outer is missing in the resulting geometry

[Sumbera]

it is impossible to determine outer or inner rings in multi polygon case, added outer to the resulting geometry #78

[mourner]

geojson-vt encodes outer/inner rings through signed area according to the vector tile specification v2. See https://github.com/mapbox/vector-tile-spec/tree/master/2.1#4344-polygon-geometry-type

[Sumbera]

... so to get this info I need to calculate the area first and check its sign ? really ?
other refs:
mapbox/vector-tile-spec#78
mapbox/mapnik-vector-tile#59

[mourner]

@Sumbera yes. This is not ideal obviously, but was the only option that didn't require doing a major breaking change to the vector tile specification. We want to address that with the next revision of the spec, tracked in mapbox/vector-tile-spec#77.