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Geospatial Tools

Organizations

Databases

  • MobilityDB/MobilityDB: An open source geospatial trajectory data management & analysis platform
  • tidwall/buntdb: BuntDB is an embeddable, in-memory key/value database for Go with custom indexing and geospatial support
  • PostGIS: Spatial and Geographic objects for PostgreSQL

Libraries

Mapping Platforms

Tileservers

Web

CLI

Building Data

Specifications

Slippy Maps

Terrain

Mapbox Examples

Deck.gl

QGIS

Cesium

Misc

Building Your Organization’s Spatial Data Infrastructure Using Open Source Stack Digital Democracy/Mapeo

Well-Known Text (WKT) Text markup language for representing vector geometry objects on a map https://en.wikipedia.org/wiki/Well-known_text_representation_of_geometry

PBF PBF Format ("Protocolbuffer Binary Format") Primarily intended as an alternative to the XML format. It is about half of the size of a gzipped planet and about 30% smaller than a bzipped planet. It is also about 5x faster to write than a gzipped planet and 6x faster to read than a gzipped planet. The format was designed to support future extensibility and flexibility. https://wiki.openstreetmap.org/wiki/PBF_Format

OpenMapTiles: Open-source maps made for self-hosting https://openmaptiles.org/

Awesome-geojson: GeoJSON utilities that will make your life easier. https://github.com/tmcw/awesome-geojson

Geojson-pick: Pick properties from features in a GeoJSON FeatureCollection. https://github.com/node-geojson/geojson-pick

Geojson-precision: Adjust precision of GeoJSON coordinates https://github.com/perrygeo/geojson-precision

Imposm imports OpenStreetMap data into PostGIS https://github.com/omniscale/imposm3/

Using Tippecanoe, Tileserver GL , and Leaflet to serve scale-independent (and really cool looking) Raster (or vector) tiles at higher level zooms https://medium.com/@kennethchambers/using-tippecanoe-tileserver-gl-and-leaflet-to-serve-scale-independent-and-really-cool-looking-751368d821c7

WebGL Earth http://examples.webglearth.com/#satellite

Add geojson features to OSM editor http://preview.ideditor.com/master/#background=Mapbox&disable_features=boundaries&gpx=http://user-agent.org/cb/220690009003112.geojson&map=16.18/31.68513/-93.02857

https://github.com/jawg/mbtiles-generator https://github.com/mapbox/mbtiles-spec/wiki/Implementations https://www.npmjs.com/package/mbtiles-server https://github.com/consbio/mbtileserver

How We reduced our Google Maps API cost (Hacker News) https://news.ycombinator.com/item?id=22767581

Tilemill Map design studio https://github.com/tilemill-project/tilemill https://tilemill-project.github.io/tilemill/

Mapnik Raster tile generation Artem Pavlenko LGPL (GNU Lesser General Public Licence v2.1) https://github.com/mapnik/mapnik https://en.wikipedia.org/wiki/Mapnik

MapServer Open Source platform for publishing spatial data and interactive mapping applications to the web. https://mapserver.org/index.html

MBtiles Spec Implementations https://github.com/mapbox/mbtiles-spec/wiki/Implementations

OpenLayers A high-performance, feature-packed library for all your mapping needs https://openlayers.org/

GeoJSON.io Development suspended, new fork at https://geojson.net/ Mapbox https://github.com/mapbox/geojson.io

Openaddress.io The free and open global address collection https://openaddresses.io/

Robosat Python3 library for semantic segmentation on aerial and satellite imagery Mapbox

Tile-reduce Geoprocessing library that implements MapReduce to let you run scalable distributed spatial analysis using JavaScript and Mapbox Vector Tiles Mapbox https://github.com/mapbox/tile-reduce

Coordinate Systems EPSG:4326 (WGS 84) and EPSG:3857 (Web Mercator) http://lyzidiamond.com/posts/4326-vs-3857 Reference ellipsoid >> Coordinate system (Geographic or Project) Lat/Long == Geographic Coordinate System Datums == Geographic Coordinate Systems, based on a specific ellipsoid, with an origin at a specific location, and the ellipsoid at a specific orientation == Spatial Reference Systems or Coordinate Reference System (CRS) EPSG == European Petroleum Survey Group, now part of the International Association of Oil & Gas Producers (IOGP) as of 2005 WGS84 is the defined coordinate system for GeoJSON, as longitude and latitude in decimal degrees EPSG:3857 Pseudo-Mercator coordinate system takes the WGS84 coordinate system and projects it onto a square; uses the WGS84 coordinate system, which uses the WGS84 ellipsoid, but projects the coordinates onto a sphere Web maps rely on data stored with WGS84 coordinates (in some programs this is called “unprojected” data) and then visualize the data using Pseudo-Mercator WGS84 is unprojected — there is no visual representation of that data. So if someone says they want to see their data in WGS84, really they want to see their data in a Plate-Carrée projection, which essentially creates a linear Cartesian graph on the page.

PostgreSQL/PostGIS Spatial database extender for PostgreSQL object-relational database https://postgis.net/