19 Jul
2011
19 Jul
'11
6:04 a.m.
Geoffrey, depending on the specifics of your dataset, you may be best off making a covering grid for both datasets. If the covering grid is small enough to fit into memory, then you can do the rest by hand, as Britton suggests. -- Stephen Skory s@skory.us http://stephenskory.com/ 510.621.3687 (google voice)