2 ms·
I think the bigger problem is W3W some how got a patent on basically using a fixed pointed number (aka fixed size grids) as a look up into a table. Nothing is t
by anfilt 5y ago
I think the bigger problem is W3W some how got a patent on basically using a fixed pointed number (aka fixed size grids) as a look up into a table. Nothing is too complicated or really innovative about using bits to look up words in a table.
Their table has about ~40000 entries. And all it basically does is concats the two fixed point numbers into one longer binary number and splits that into 3 different numbers. Then each number is used to lookup a word. It's also quite bad compared to other geo-hashes that have hierarchical structure that can get more accurate as you specify more information.