Cache is built using a square with sides 20 km. User's path has steps of (2000, 2000) metres, with a total of 11 retrievals. Amount of look-ahead (both E and N) is 10km. Cache size is 20. (Size is set as a fixed value, derived from original size of 74).
Point furthest from the centre of cache (30200000, 10200000) is 2920330, 0921240; distance away is: 14.0716 kilometres.
Threshold | Total benchmark retrievals | Retrievals lost |
---|---|---|
50% | 1 | 0 |
20% | 10 | 5 |
10% | 37 | 17 |
5% | 453 | 262 |
Non-default algorithm used was: Context Matcher with N-squared location-matching algorithm: version of Jan 4 2003.
Commentary on this starting point: this may be a favourable case as the cache is centred on an area with lots of attractions, and the area outside the cache has fewer attractions.