GeoMVD: the Journey to High-Quality Georeferencing Profiles in IFC Datasets

Abstract

Georeferencing of civil engineering models is required to correctly relate geometries of digital objects to their placement on the Earth. Clemen and Görne (2019) introduce five levels of georeferencing (LoGeoRefs) for Industry Foundation Classes (IFC) datasets. However, these can be provided simultaneously and independently from one another within the same IFC dataset. This means that not only one has to check their fulfilment, but we need to forbid encoding contradictory or duplicate information. We provide check-lists for domain experts to set up the georeferencing right for their projects. Additionally, we address this gap by developing a specialized profile for IFC based data exchanges dubbed GeoMVD. The usefulness of the profile for georeferenced IFC models is demonstrated on a real world dataset.