README.md

cjio, or CityJSON/io

Python CLI to process and manipulate CityJSON files. The different operators can be chained to perform several processing in one step, the CityJSON model goes through them and allows to save to a new CityJSON at the end.

It is only for uses Python 3.3+

To install and still develop with it:

$ virtualenv venv
$ . venv/bin/activate
$ pip3 install --editable .

Then you have a small program called cjio, to see its possibities:

$ cjio --help

  decompress                 Decompress a CityJSON file, ie remove the...
  info                       Output info in simple JSON.
  merge                      Merge the current CityJSON with others.
  remove_duplicate_vertices  Remove duplicate vertices a CityJSON file.
  remove_materials           Remove all materials from a CityJSON file.
  remove_orphan_vertices     Remove orphan vertices a CityJSON file.
  remove_textures            Remove all textures from a CityJSON file.
  save                       Save the CityJSON to a file.
  subset                     Create a subset of a CityJSON file.
  update_bbox                Update the bbox of a CityJSON file.
  update_crs                 Update the CRS with a new value.
  validate                   Validate the CityJSON file: (1) against its...

Where can I get data to test it?

There are a few example files on the CityJSON webpage.

Alternatively, any CityGML file can be automatically converted to CityJSON with the open-source project citygml4j.