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Neo4j Spatial is a library of utilities for Neo4j that faciliates the enabling of spatial operations on data. In particular you can add spatial indexes to already located data, and perform spatial operations on the data like searching for data within specified regions or within a specified distance of a point of interest.
A library provides spatial data and geometric algorithms
GeoCouch, a spatial index for CouchDB
Go bindings for H3, a hierarchical hexagonal geospatial indexing system
pure-Python (Numpy optional) 3D coordinate conversions for geospace ecef enu eci
Open-source backend for Kepler.gl. Self-hosted alternative to CARTO and Foursquare Studio.
The Spatial Framework for Hadoop allows developers and data scientists to use the Hadoop data processing system for spatial data analysis.
Digital Elevation model library in C#. 3D terrain models, line/point Elevations, intervisibility reports
Go native library for fast point tracking and K-Nearest queries
The Geospatial Neighborhood Analysis Package
A geographic toolkit for dealing with geometry, geography, formats, and building geodatabases
Desktop based tool for viewing, editing and saving road network maps for autonomous vehicle platforms such as Autoware.
Automated mapping of pedestrian networks from aerial imagery tiles
The Complete Street Rule for ArcGIS CityEngine is a scenario oriented design tool intended to enable users to quickly create procedurally generated multimodal streets.
Spatial and spatio-temporal geostatistical modelling, prediction and simulation
peartree: A library for converting transit data into a directed graph for sketch network analysis.
Fast and storage-efficient spatial database engine for OpenStreetMap data
Tools for working with GTFS public transit data in ArcGIS
RTree2D is a 2D immutable R-tree for ultra-fast nearest and intersection queries in plane and spherical coordinates
Realm GeoQueries made easy
An open source Geoservices Implementation (deprecated)
Open framework for calculating spatial urban sprawl indices and performing disaggregated population estimates using open data
Deprecated
Tiny header-only C++17 library for lat/lng geometry: distance, bearing, area, point-in-polygon and path proximity