geo2zip
Translates latitude / longitude geolocations to the nearest corresponding U.S. zip code
usneighboringstates
Provide a helper to get the list of all US states and list of neighboring states for each state
pts-to-graph
generate nearest neighbors for a set of 3d points. convert triangle mesh to graph. convert set of 3d points into an graph / ngraph.
mddf
multi-dimensional data format with attachments for proximity search using a kd-b tree
