Muhammad Kemal Adro, S.Ars. shares on how to gather GIS terrain data from open source OpenStreetMap and processing it with Rhinoceros 7 and Grasshopper, with the plugin/add-on of Elk. Please check these links to get further informations:
- OpenStreetMap: https://www.openstreetmap.org
- Rhinoceros 7: https://www.rhino3d.com/ (Grasshopper already included)
- Grasshopper web info: https://www.grasshopper3d.com/
- Plugins collection for Rhino+GH: https://www.food4rhino.com/
- Elk plugin: https://www.food4rhino.com/en/app/elk
