ezio47,github

citygl

JavaScript Library for 3D visualization of CityGML files

citygml

Copy of OGC-approved version of the City Geographic Markup Language (CityGML) schema

citygml-schema-validation

small script to validate a CityGML file against the XSD schemas of CityGML (all versions supported)

citygml2pgsql

convert citygml buildings to postressql insersion statements

citygmlconverter

The 3D City Database Importer/Exporter is a Java based front-end for the 3D City Database. It allows for high-performance importing and exporting spatial data for a virtual 3D city model.

CKAN is an open-source DMS (data management system) for powering data hubs and data portals. CKAN makes it easy to publish, share and use data. It powers datahub.io, catalog.data.gov and data.gov.uk among many other sites.

collada2json

JSON format that aims to bridge the gap between COLLADA and WebGL

countries

World countries in JSON, CSV, XML and Yaml. Any help is welcome!

cuardo

Cuardo, a 3D GIS web framework based on Three.js and WebGL, oriented toward urban visualization.

czml-writer

A library for writing CZML content for use with Cesium

db3dcore

The DB4GeO/DB3D Kernel is a completely in Java written library of 3D geometric data types (and its methods) and it even provides the possibility to build topologically defined nets (for example triangle nets) as well as access to a fast spatial index on the geometry data. A predecessor of the API called GeoToolKit has been developed at the Collaborative Research Centre 350 at Bonn University. DB4GeO is now maintained by the Chair in Geoinformatics (Prof. Breunig) of the Karlsruhe Institute of Technology. All of the textual data is coded in UTF-8.