PostGIS - Spatial and Geographic objects for PostgreSQL

•    C

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PostGIS is a spatial database extender for PostgreSQL object-relational database. It adds support for geographic objects allowing location queries to be run in SQL. PostGIS adds extra types (geometry, geography, raster and others) to the PostgreSQL database. It also adds functions, operators, and index enhancements that apply to these spatial types.

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turf - A modular geospatial engine written in JavaScript

•    Javascript

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Turf is a JavaScript library for spatial analysis. It includes traditional spatial operations, helper functions for creating GeoJSON data, and data classification and statistics tools. Turf can be added to your website as a client-side plugin, or you can run Turf server-side with Node.js (see below).Download the minified file, and include it in a script tag. This will expose a global variable named turf.

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cartodb - Location Intelligence & Data Visualization tool

•    Javascript

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CARTO is an open, powerful, and intuitive platform for discovering and predicting the key insights underlying the location data in our world. Empower organizations to optimize operational performance, strategic investments, and everyday decisions with CARTO Engine—our embeddable platform for web and mobile apps—and the new CARTO Builder, a drag and drop analysis tool.

geolocation geospatial location-services postgis carto

Geolib - Growing library to provide some basic geo functions

•    Javascript

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Library to provide basic geospatial operations like distance calculation, conversion of decimal coordinates to sexagesimal and vice versa, etc. Takes 2 or 4 arguments. First 2 arguments must be objects that each have latitude and longitude properties (e.g. {latitude: 52.518611, longitude: 13.408056}). Coordinates can be in sexagesimal or decimal format. 3rd argument is accuracy (in meters). So a calculated distance of 1248 meters with an accuracy of 100 is returned as 1200 (accuracy 10 = 1250 etc.). 4th argument is precision in sub-meters (1 is meter presicion, 2 is decimeters, 3 is centimeters, etc).

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kepler.gl

•    Javascript

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kepler.gl is a data-agnostic, high-performance web-based application for visual exploration of large-scale geolocation data sets. Built on top of deck.gl, kepler.gl can render millions of points representing thousands of trips and perform spatial aggregations on the fly. For what it is capable of, take a look at kepler.gl demo app.

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GRASS GIS - Geographic Resources Analysis Support System

•    C++

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Geographic Resources Analysis Support System, commonly referred to as GRASS GIS, is a Geographic Information System (GIS) used for data management, image processing, graphics production, spatial modelling, and visualization of many types of data. GRASS supports raster and vector data in two and three dimensions. The vector data model is topological, meaning that areas are defined by boundaries and centroids; boundaries cannot overlap within a single layer.

gis geospatial vector 2d 3d image-processing visualization geographic-information-system geo-statistics

Cesium - An open-source JavaScript library for world-class 3D globes and maps

•    Javascript

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CesiumJS is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin. It uses WebGL for hardware-accelerated graphics, and is cross-platform, cross-browser, and tuned for dynamic-data visualization.

3d geospatial gis 3d-tiles cesium 3d-globe gltf czml webgl map globe

osmnx - OSMnx: Python for street networks

•    Python

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Retrieve, construct, analyze, and visualize street networks from OpenStreetMap: full overview. You can just as easily download and work with building footprints, elevation data, street bearings/orientations, and network routing.

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GEOSwift - The Swift Geographic Engine.

•    Swift

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Easily handle a geographical object model (points, linestrings, polygons etc.) and related topographical operations (intersections, overlapping etc.). A type-safe, MIT-licensed Swift interface to the OSGeo's GEOS library routines, nicely integrated with MapKit and Quicklook. GEOS is a configure/install project licensed under LGPL 2.1: it is difficult to build for iOS and its compatibility with static linking is at least controversial. Use of GEOSwift without dynamic-framework-based CocoaPods and with a project targeting iOS 7, even if possible, is advised against.

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php-crud-api - Single file PHP script that adds a REST API to a SQL database

•    PHP

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Single file PHP 7 script that adds a REST API to a MySQL 5.6 InnoDB database. PostgreSQL 9.1 and MS SQL Server 2012 are fully supported. NB: This is the TreeQL reference implementation in PHP.

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GeoMesa - Suite of tools for working with big geo-spatial data in a distributed fashion

•    Scala

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GeoMesa is an open-source, distributed, spatio-temporal database built on a number of distributed cloud data storage systems, including Accumulo, HBase, Cassandra, and Kafka. Leveraging a highly parallelized indexing strategy, GeoMesa aims to provide as much of the spatial querying and data manipulation to Accumulo as PostGIS does to Postgres.

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Tile38 - Geospatial database, spatial index, and realtime geofence

•    Go

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Tile38 is a in-memory geolocation data store, spatial index, and realtime geofence. It supports a variety of object types including lat/lon points, bounding boxes, XYZ tiles, Geohashes, and GeoJSON. It supports spatial index with search methods such as Nearby, Within, and Intersects, Realtime geofencing through persistent sockets or webhooks and lot more.

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

•    Go

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BuntDB is a low-level, in-memory, key/value store in pure Go. It persists to disk, is ACID compliant, and uses locking for multiple readers and a single writer. It supports custom indexes and geospatial data. It's ideal for projects that need a dependable database and favor speed over data size.The desire to create BuntDB stems from the need for a new embeddable database for Tile38 and SummitDB.

database in-memory key-value geospatial key-value-store

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

•    Go

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SummitDB is an in-memory, NoSQL key/value database. It persists to disk, uses the Raft consensus algorithm, is ACID compliant, and built on a transactional and strongly-consistent model. It supports custom indexes, geospatial data, JSON documents, and user-defined JS scripting.Under the hood it utilizes Finn, Redcon, BuntDB, GJSON, and Otto.

raft json nosql database in-memory geospatial

leaflet-dvf - Leaflet Data Visualization Framework

•    Javascript

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The Leaflet Data Visualization Framework (DVF) is an extension to the Leaflet JavaScript mapping library. The primary goal of the framework is to simplify data visualization and thematic mapping using Leaflet - making it easier to turn raw data into compelling maps.

data-visualization dataviz choropleth-map choropleth charting-library maps mapping geospatial leaflet

Mapsforge - Vector map library written in Java - running on Android and Desktop.

•    Java

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Mapsforge project uses a compact file format for fast ad-hoc rendering of OpenStreetMap data. It provides tools to compile your own maps with detailed instructions and also precompiled maps, Simple boilerplate code to build applications for Android that display OpenStreetMap-based maps. Mapsforge maps can be flexibly styled with XML style files (render themes).

openstreetmap map vector geospatial spatial

supercluster - A crazy fast geospatial point clustering library for browsers and Node.

•    Javascript

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A very fast JavaScript library for geospatial point clustering for browsers and Node.Loads an array of GeoJSON Feature objects. Each feature's geometry must be a GeoJSON Point. Once loaded, index is immutable.

clustering algorithm computational-geometry maps geospatial markers

uDig - User-friendly Desktop Internet GIS

•    Java

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uDig is an open source desktop application framework, built with Eclipse Rich Client (RCP) technology. The goal of uDig is to provide a complete Java solution for desktop GIS data access, editing, and viewing. It supports GeoRSS, geospatial web services and provides the framework on which complex analytical capabilities can be built, and gradually subsuming those capabilities into the main application.

gis geospatial geo-rss eclipse-rcp rcp rich-client

h3 - Hexagonal hierarchical geospatial indexing system

•    C

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H3 is a geospatial indexing system using a hexagonal grid that can be (approximately) subdivided into finer and finer hexagonal grids, combining the benefits of a hexagonal grid with S2's hierarchical subdivisions. Documentation is available at https://uber.github.io/h3/. Developer documentation in Markdown format is available under the dev-docs directory.

spatial-indexing geospatial uber h3 hexagon

postgis - PostGIS spatial database extension to PostgreSQL [mirror]

•    PLpgSQL

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This file is here to play nicely with modern code repository facilities. Actual readme is here. Official chat room is the #postgis channel on the freenode network.

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