common-geohash-parent v0.1.0

Common geohash parent finder v0.1.0

Class with multiple methods to help you find the common parent geohash from points, geohashes, bounding boxes, polygons or other GeoJSON shapes.

Installation

Using npm:

npm i common-geohash-parent

Using yarn:

yarn add common-geohash-parent

Example usage

In node:

const ParentFinder = require('common-geohash-parent');

const bbox = [-3.944092, 40.241799, -3.261566, 40.779502];
const precision = 5;
const finder = new ParentFinder(precision);
finder.fromBBox(bbox)
  .then((parents) => {
    // parents is ['ezjp','ezjr','ezjx','ezjn','ezjq','ezjw','ezjj','ezjm','ezjt','ezjh','ezjk','ezjs']
    ...
  });

Classes

Typedefs

ParentFinder

Kind: global class

• ParentFinder
  • new ParentFinder()
  • instance
    • .fromPoints(points) ⇒ ParentGeohashList
    • .fromGeohashes(hashes) ⇒ ParentGeohashList
    • .fromBBox(bbox) ⇒ Promise.<ParentGeohashList>
    • .fromPolygon(inputPolygon) ⇒ Promise.<ParentGeohashList>
  • static
    • .ParentFinder
      • new ParentFinder(parentPrecision, [optimization])

new ParentFinder()

ParentFinder class

parentFinder.fromPoints(points) ⇒ ParentGeohashList

Finds common parents from array of points

Kind: instance method of ParentFinder
Returns: ParentGeohashList - Array of geohashes

parentFinder.fromGeohashes(hashes) ⇒ ParentGeohashList

Finds common parents from array of geohashes

Kind: instance method of ParentFinder
Returns: ParentGeohashList - List of parent geohashes

parentFinder.fromBBox(bbox) ⇒ Promise.<ParentGeohashList>

Finds common parents from bounding box

Kind: instance method of ParentFinder
Returns: Promise.<ParentGeohashList> - Promise of list of parent geohashes

parentFinder.fromPolygon(inputPolygon) ⇒ Promise.<ParentGeohashList>

Finds common parents from polygon feature

Kind: instance method of ParentFinder
Returns: Promise.<ParentGeohashList> - Promise of list of parent geohashes

ParentFinder.ParentFinder

Kind: static class of ParentFinder

new ParentFinder(parentPrecision, optimization)

Creates an instance of ParentFinder.

ParentGeohashList : Array.<string>

Kind: global typedef

OptimizationOptions

Kind: global typedef
Properties