| Method |
Description |
|
|
binDecode ( $binary, $min, $max ) |
decodes binary encoding of number as detailed in http://en.wikipedia.org/wiki/Geohash#Example
removing the tail recursion is left an exercise for the reader |
|
|
binEncode ( $number, $min, $max, $bitcount ) |
create binary encoding of number as detailed in http://en.wikipedia.org/wiki/Geohash#Example
removing the tail recursion is left an exercise for the reader |
|
|
calcError ( $bits, $min, $max ) |
What's the maximum error for $bits bits covering a range $min to $max |
|
|
precision ( $number ) |
*
returns precision of number
precision of 42 is 0.5
precision of 42.4 is 0.05
precision of 42.41 is 0.005 etc |
|
