This paper presents a dynamic geospatial knowledge graph as part of The World Avatar project, with an underlying ontology based on CityGML 2.0 for three-dimensional geometrical city objects. We comprehensively evaluated, repaired and refined existing to produce improved version that could pass the necessary tests complete unit test development. A corresponding data transformation tool, original...

The complexity and variety of buildings the defects point cloud data are main challenges faced by 3D urban reconstruction from clouds, especially in metropolitan areas. In this paper, we developed a method that embeds multiple relations into procedural modelling process for automatic photogrammetric clouds. First, hybrid tree constructive solid geometry boundary representation (CSG-BRep) was bu...

The 3D cadastre, one of the most fundamental components LAS (Land Administration System), aims to provide an integrated view legal (Right, Restrictions, and Responsibilities–RRR) physical boundaries in multi-storey properties; therefore, extend flexible modular basis LADM, which best represents RRRs, some models using technical standards (e.g., CityGML, IFC, InfraGML) are developed represent fu...

In the perspective of a sustainable urban planning, it is necessary to investigate cities in a holistic way and to accept surprises in the response of urban environments to a particular set of strategies. For example, the process of inner-city densification may limit air pollution, carbon emissions, and energy use through reduced transportation; on the other hand, the resulting street canyons c...

Visualization of 3D geodata integrated into a web browser based user interface is still a key issue in geoinformation science research. In a short overview of state of the art solutions for this demand, the key advantages and disadvantages of each of those solutions are lined out. As a solution which combines most of the advantages identified before, a CityGML based 3D model of the University o...