A clustering library. Right now this supports symbol-heavy rendering like that described by vis4.
The core of clustr has no dependencies - it simply takes and generates GeoJSON.
clustr.scale_factory is made to work with markers.js,
which in turn is designed to work with Modest Maps.
- Implementation of
merge_intersectingis adapted from Dave Cole's prototype, algorithm loosely based around Gregor Aisch's suggestion. - quadtree from d3js