JSON Support Updated

JSON is a lightweight, data-interchange format designed to be easy for humans to read and write. The format was introduced as an easier, faster, and smaller alternative to the heavy XML file format.

Recently the DK TGIS_LayerJSON class was updated to support variety of JSON  schema extensions, including:

• GeoJSON
  encoding a variety of geographic data structures.
• TopoJSON
  extension of GeoJSON that encodes topology.
• CityJSON
  encoding for storing a 3D city model.

The updated JSON support is available in the TatukGIS Developer Kernel (SDK) and desktop GIS Editor products. Read more about the TGIS_LayerJSON class in the DK documentation wiki. A schema of a JSON file is recognized automatically!

GeoJSON states 
(https://github.com/PublicaMundi/MappingAPI/tree/master/data/geojson)

TopoJSON states 
(https://github.com/topojson/us-atlas)

CityJSON Vienna city 
(https://www.cityjson.org/datasets/)