• Volker Krause's avatar
    Exclude the polar regions from the timezone index · 435da2ca
    Volker Krause authored
    This allows us to move about 20% of the available z-order curve length
    to more relevant regions, increasing the precision there.
    
    This however further increases the aspect ration to ~2.2, it might
    therefore make sense to use an additional bit for an initial split
    on the longitude to get this back to around 1. While this doesn't
    generally break the approach, the spatial proximity property of the
    z-order curve degrades a bit with this, reducing the encoding efficiency
    of this.
    435da2ca
timezonedb.cpp 5.35 KB