3D pgRouting and visualization in Cesium JS using the integrated model of LADM and IndoorGML

3D pgRouting and visualization in Cesium JS using the integrated model of LADM and IndoorGML

Alattas, A.F.M. (TU Delft GIS Technologie)
de Vries, M.E. (TU Delft GIS Technologie)
Meijers, B.M. (TU Delft GIS Technologie)
Zlatanova, Sisi (University of New South Wales)
van Oosterom, P.J.M. (TU Delft GIS Technologie)

2021-06-01

A web-based application has been developed, exploiting the integrated model of LADM andIndoorGML to provide indoor navigation based on the user's access rights in an educationalbuilding. Different types of users (students, teachers, visitors, etc.) have different access rights,which also depend on the exact time (e.g. inside or outside office hours). A 3D BIM IFC fileof a building has been geo-referenced and converted into a LADM complaint database inPostgreSQL/PostGIS and is enriched with information about access rights based on therelationship between users, time and indoor spaces. The PostgreSQL extension pgRouting hasbeen used for the actual routing. To support the access rights-based routing, the databasecontains several tables to represent nodes, edges, parties (users), and rights. There is one overallnetwork for the whole building, and database views are used to dynamically select the relevantnodes and edges based on the time and the user’s rights. The Dijkstra algorithm is used tocompute the shortest path. Finally, the 3D geospatial web-platform Cesium JS is used to createa client GUI allowing to specify start and destination, the user and time, and to visualize thenavigation routes. As this GUI is web-based it can run on different platforms, such as desktops,laptops, tablets and mobile phones. This paper provides a complete description of all the stepsto design, develop and test the integrated model of LADM and IndoorGML.

http://resolver.tudelft.nl/uuid:aee00cfd-c87c-4c9c-a9dc-a806fc342e4f

International Federation of Surveyors (FIG)

978-87-92853-65-3

FIG Working Week 2021 20-25 June. : Smart Surveyors for land and Water Management - Challenges in a New Reality

FIG e-Working Week 2021, 2021-06-20 → 2021-06-25

Institutional Repository

conference paper

© 2021 A.F.M. Alattas, M.E. de Vries, B.M. Meijers, Sisi Zlatanova, P.J.M. van Oosterom