Patient-Specific Arterial Flow Simulation with Additional Geometric Elements

Biomedical flow problems tend to involve domains which are geometrically complex over a range of scales. Much effort has gone into developing tools for generating computational meshes automatically from medical scan data (MRI, CT), allowing the easy creation of patient-specific models of the flow domain, and hence the investigation of flow under...

Integrating sustainability and innovation through a master’s program in product-service systems

The results of unsustainable product innovation are evident worldwide. Products and their usage contribute to global sustainability problems. Companies building competence in innovation for sustainability will therefore gain competitive advantages in the evolving sustainability-driven market at the same time as sustainability is a driving force...

ISO Land Administration Domain Model and LandXML in the Development of Digital Survey Plan Lodgement for 3D Cadastre in Australia

The aim of this paper is to explore the implementation issues of 3D Cadastre in Queensland, Australia, which is presently moving towards a full digital lodgement of surveying information, with a focus on validation rules. In Queensland the Electronic Access for Registry Lodgement (EARL) project has already successfully implemented EARL-I, the...

Axiomatic Definition of Valid 3D Parcels, potentially in a Space Partition

The definition of a valid 3D parcel must be correct and unambiguous, because an error or ambiguity in the definition of the extent of a property can lead to expensive legal disputes or to problems with handling 3D parcels in the information systems or problems during data transfer between two systems. This paper develops a rigorous axiomatic...

Validity of Mixed 2D and 3D Cadastral Parcels in the Land Administration Domain Model

The Land Administration Domain Model (ISO 19152) (ISO-TC211 2012) defines a specific geometry form which allows the clean and simple mixing of 3D cadastral objects such as volumetric parcels with the more common 2D parcels. It does this by introducing a concept of boundary surfaces, known as “face strings”. The unbounded nature in the vertical...

Delivery of Interactive 3D Content via the World Wide Web to Aid in Public Participation in Planning Proposals

Public participation has become an important task for urban planning projects, but due to a lack of interactivity, immersion and feedback on the tools that has been utilized so far for this purpose, the current practice is limited. In providing a web-based virtual solution the current limitations can be reduced and transparency in the planning...

Progressive Development of a Digital Cadastral Data Base

A Digital Cadastral Data Base (DCDB) is a big investment for a jurisdiction tasked with the administration of land boundaries. In the past, the development of such a database produced no real pay-back on investment until many years, and millions of dollars had been committed. The Land Administration Domain Model (LADM) (ISO-TC211 2012) provides...

Initial Registration of 3D Parcels: Position Paper 2

This is a discussion paper for initiating an on-going conversation on “Initial Registration of 3D Parcels” in the working session at the 4th International Workshop on 3D Cadastres. The working session will focus on 3D registration from multiple points of view. Figure 1 shows the aspects of 3D registration that will be discussed in the working...

Initial Analysis of the Second FIG 3D Cadastres Questionnaire: Status in 2014 and Expectations for 2018

In this paper we present the initial analysis of the second FIG 3D Cadastres questionnaire, spanning the years 2014-2018. The first version of the 3D Cadastres questionnaire was conducted in 2010 and collected the status of 2010 and the expectations or ambitions for 2014. Most of the FIG 3D Cadastres working group members had completed the 2010...

Semantics-based Fusion for CityGML and 3D LandXML

For any developments that require spatial data, often the fusion of diverse spatial datasets is unavoidable. For instance in developing a 3D cadastral database serving various purposes, data may need to be sourced from different spatial datasets such as: building design models in BIM (Building Information Model) format, topographic and built...

Risk Management based Ground deformation monitoring during Queens Bored Tunnels project

Ground, building and utility deformation monitoring is a well-accepted and required practice for underground construction works in urban environments. The availability of real-time monitoring data during construction allows stakeholders to stay ahead of potential problems, to make decisions prior to damage occurrence, and ultimately to reduce...

Initial Registration of 3D Parcels

Registering the rights of a 3D parcel provides certainty of ownership, protection of rights and unambiguous spatial location. While not all cadastral jurisdictions in the world maintain a digital cadastral database, the concepts of such registration hold true regardless of whether it is a paper-based cadastre or a digital one. Similarly, the...

Mixed 2D and 3D Survey Plans with Topological Encoding

There is a wide range of spatial units in jurisdictions around the world, ranging from simple 2D parcels (spatial units defining 3D column of space) to complex 3D collections of spaces, which are defined at various levels of sophistication from textural descriptions to complete, rigorous mathematical descriptions based on measurements and...

Developing an LADM Compliant Dissemination and Visualization System for 3D Spatial Units

This paper describes research into the visualization of mixed 2D and 3D Cadastre. A schema has been developed to accommodate this data, with provision for a time component. This paper describes the schema, the visualization requirements, and the provision of LADMcompatible views of the data for the purpose of developing these tools, and for the...

Investigating 3D spatial units’ types as basis for refined 3D spatial profiles in the context of LADM revision

Dense urbanisation has led to an increasing demand and pressure for land development, resulting in the partition of 3D space into different owners sharing delimited property interests on, above or below the land surface. Consequently, cadastral spatial units range from simple, but most common, 2D, to complex 3D collections of spaces worldwide,...

Usability testing of a web-based 3D Cadastral visualization system

Many countries are extending their cadastral visualization systems in the third dimension. The reason for this stems from the increasing complexity of contemporary cities, the growing 3D approach in other fields (including 3D spatial data acquisition, spatial data processing and visualization), which made 3D cadastre technologically feasible,...

A Suggested Terminology for Point-Like Entities in a Bi-Temporal Representation of 2D and 3D Land Administration Data

The prime purpose of Cadastral data – whether in the form of maps, survey plans or notes, or a digital database is the definitive demarcation of the extent of properties – and can be seen primarily as a decision support facility (“Can a structure be built here?”, “Where can I build a fence?”, “Should I buy this property”?). There are, however...

Analysing 3D Land Administration developments and plans from 2010 to 2026

Administration questionnaires. The last FIG questionnaire 2022-2026 was just analysed and the FIG working week 2023 (Kalogianni et al. 2023, and in that paper the creation or update, organization and initial analysis of the results from the 4th FIG 3D Land Administration Questionnaire, as an activity of the FIG Working Group 3D Land...