cardboard

cardboard

Demo platform for s2 on DynamoDB. This provides query, indexing, and storage logic. Look to node-s2 for bindings and higher level code for interfaces.

install

npm install cardboard
# or globally
npm install -g cardboard

api

var c = Cardboard(config)

Initialize a new cardboard database connector given a config object that is sent to dyno.

c.insert(primarykey: string, feature: object, layer: string, callback: fn);

Insert a single feature, indexing it with a primary key in a given layer.

// query a bbox, callback-return array of geojson
c.bboxQuery(bbox: array, layer: string, callback: fn);
// dump all features as geojson
c.dumpGeoJSON(callback: fn);
// delete a feature
c.del(primarykey: string, layer: string, callback: fn);
c.dump(); // -> stream
c.export(); // -> stream

Approach

This project aims to create a simple, fast geospatial index as a layer on top of DynamoDB. This means that the index will not be built into the database or contained in a single R-Tree - it will be baked into the indexes by which data is stored.

Support target:

• All GeoJSON geometry types should be storable
• BBOX queries should be supported