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  • License BSD

in-memory kdb tree

Package Exports

  • kdb-tree

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (kdb-tree) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

kdb-tree

in-memory kdb tree

example

var kdbtree = require('kdb-tree')

var kdb = kdbtree({ dim: 3 })
kdb.insert([1,2,3],'a')
kdb.insert([-5,10,2],'b')
kdb.insert([3,3,3],'c')
kdb.insert([-2,1,9],'d')

var q = [[-3,3],[2,20],[1,5]]
console.log(kdb.query(q))

output:

[ { point: [ 1, 2, 3 ], value: 'a' },
  { point: [ 3, 3, 3 ], value: 'c' } ]

api

var kdbtree = require('kdb-tree')

var kdb = kdbtree(opts)

  • opts.dim - dimension to use for points (required)
  • opts.a - number of points per page (default: 4)
  • opts.b - number of regions per page (default: 3)

kdb.insert(pt, value)

Insert a point pt with a value.

var results = kdb.query(q)

Return an array of results from a bounding box query q. q is an array or [min,max] arrays for each dimension.

Each result in the results array is an object with point and value properties.

install

npm install kdb-tree

license

BSD