List of Articles 3D GIS Open Access Article Abstract Page Full-Text 1 - Fundamental of Spatial Data Modelling for 3D GIS Sepideh Saeidi Marjan Mohammadzadeh Open Access Article Abstract Page Full-Text 2 - Using a hybrid model of 3D GIS and meta-heuristic methods for optimizing tree shade coverage Mohsen Ghods Hossein Aghamohammadi Zanjirabad Alireza Vafaeinezhad Saeed Behzadi Alireza Gharagozlo 10.30495/girs.2021.680238