Topic: geospatial

High-precision indoor positioning framework for most wifi-enabled devices.

Tile38 is a geospatial database, spatial index, and realtime geofence. It supports a variety of object types including lat/lon points, bounding boxes, XYZ tiles, Geohashes, and GeoJSON.

BuntDB is an embeddable, in-memory key/value database for Go with custom indexing and geospatial support

An open source route planning library and server using OpenStreetMap.

In-memory NoSQL database with ACID transactions, Raft consensus, and Redis API

The Swift Geographic Engine.

JavaScript library to transform coordinates from one coordinate system to another, including datum transformations

Single file PHP script that adds a REST API to a SQL database

Leaflet Data Visualization Framework

Lucene based secondary indexes for Cassandra

:earth_asia: FreeDraw allows the free-hand drawing of shapes on your Leaflet.js map layer – providing an intuitive and familiar UX for creating geospatial boundaries similar to Zoopla and others. Included out-of-the-box is the concaving of polygons, polyg

Awesome GIS is for collecting the GIS related sources, including cartographer tools, geoanalysis tools, developing tools, data, conference & communities, news, MOOC's course, some amazing map site, etc.