3D Modelling of Fez

A Model from Aerial/Terrestrial Imagery and Topographic Maps
The ancient imperial city of Fez, Morocco, is an important tourist attraction and has been listed as a UNESCO World Heritage Site since 1981. The layout of the city is complex, which presents challenges in terms of 3D modelling. Here, the authors discuss a pilot aimed at creating a 3D model of Fez using topographic maps and aerial and terrestrial imagery. Overlapping 1:4,000 aerial images were used to create a digital surface model (DSM) and orthoimages. Orthoimages and topographic maps were used to manually delineate the footprints of buildings, roads, rivers and suchlike. Terrestrial imagery of single buildings from multiple... (read more)
2015-03-31 09:34:33

3D Modelling of Castles

Integrating Techniques for Detail and Photo-realism
Three-dimensional documentation of heritage buildings is important for conservation, restoration and education. When it comes to complex architectural structures such as castles, no single modelling technique is capable of yielding cost-effective, highly detailed and accurate photo-realism. The authors demonstrate how integration of multiple techniques brings resolution.<P> Castles are unique and fascinating structures of complex architecture the style of which has evolved over centuries. Three-dimensional modelling aims at capturing all geometrical detail, both exterior and interior, and representing these features with high-resolution triangular meshes for accurate documentation and photo-realistic visualisation. Modelling complex and large-scale architecture requires the integration of multiple techniques,... (read more)
2008-02-19 12:00:00

Data Modelling for Water Management

UML for Better Communication among Stakeholders
In 2004 the government agency responsible for water management in The Netherlands began a project to create an integrated geo-database for holding all geo-information on water-related objects. The set-up of the geo-database had to be sufficiently flexible for use at different management levels and geo-data had to be accessible using Web services. UML has played an important role in the project: it helps discussions, forcing designers and end-users to be specific. Because of its geographic location in a low-lying delta, water management is of prime import-ance for The Netherlands. Rijkswaterstaat (RWS), the Directorate-General for Public Works and Water Management, is... (read more)
2006-05-22 12:00:00

British Information Modelling Event Witnesses New Innovations

The second British Information Modelling (BIM) event proved a success with 100 delegates heading to the Arup’s central London headquarters during the last week of October. A fitting opening event for Digital Construction Week – which followed later in the week – British Information Modelling saw a lively discussion between the audience and a panel comprising of Cobus Bothma and Martin Coyne of KPF, Shaun Farrell of Turner & Townsend and Andrew Norrie of Graphisoft.  The BIM-focused event was organised by 3D Repo, the company behind multi-award winning technology that allows complex BIM datasets from multiple sources to be stored... (read more)
2016-11-03 09:33:39

End-to-end 3D Modelling Solution

ClearEdge3D, USA, has officially launched EdgeWise Plant 4.0, with numerous major new features and enhancements that have created one of the fastest end-to-end pipe modelling solutions on the market. The software automates the 3D modelling of complex process plant facilities, cutting up to 85% of labour from the modelling workflow. Robert Greenhalgh, Ramboll Oil & Gas, used the software on a recent North Sea offshore project. They reduced their 3D modelling time substantially with EdgeWise Plant 4.0. Building standard pipe fittings on top of the powerful automated tools makes 4.0 a complete pipe modelling package, he said. The new features... (read more)
2012-12-13 10:03:50

Integrating Geospatial Services with Modelling and Simulation

The Open Geospatial Consortium (OGC, USA) and the United States Geospatial Intelligence Foundation (USGIF) Modelling and Simulation (M&S) Working Group will provide a demonstration of new standards developments that provide the capability to rapidly discover, transform and stream geospatial data from internet sources into modelling and simulation applications for all I/ITSEC attendees, on 4 December 2013 in Orlando, USA. The USGIF M&S Working Group Demo simulations will feature two hypothetical scenarios -- a military rescue operation against terrorists in Yemen and civilian oil spill response activity in Hawaii. Attendees will see how implementations of open standards enable: ·    Direct flow... (read more)
2013-11-26 09:03:21

Mapping and 3D Modelling in Medina

The city of Medina in the Kingdom of Saudi Arabia is realising base maps and 3D modelling. In order to provide the necessary services, Blom CGR, the Italian subsidiary of Blom ASA, has partnered with Unicom from Saudi Arabia to secure this contract with the Development Commission of Medina (DCOM).     Blom's capture technologies will produce accurate and high-resolution data; the deliverables consist of Lidar, aerial photo and BlomOBLIQUE. Blom's data will form a unique geospatial base in DCOMs sophisticated database sharing service, providing an encompassing solution.   Blom's share of the contract is NOK8 million. The contract will... (read more)
2012-02-14 09:50:54

Enhancing Spatial Modelling and Precision Analysis

SuperGIS Spatial Analyst 3 is a spatial processing tool working with SuperGIS Desktop 3.1 to complete advanced spatial analyses and tasks. Designed for deriving information from geo-applications, it provides users with various analysis methods such as geographic attributes and geometry relationship.   To enhance the operating performance and the precision of data analysis, Spatial Analyst 3 adopts the new development engine and whole new algorithms, giving users more flexibility and capability to accomplish analysis tasks. This extension tool also includes innovative built-in spatial models, such as distance analysis, interpolation analysis, generalisation analysis, and local analysis.   With Spatial Analyst 3,... (read more)
2011-12-26 12:00:00

Autonomous 3D Modelling of Indoor Spaces

A Comparison of Mobile Indoor Scanning Methods
Mobile scanning can be an equally accurate yet more cost-effective solution than traditional terrestrial laser scanning done with tripods. To succeed, however, mobile scanners not only require a suitable combination of sensors, but also reliable and continuous knowledge about where the scanners are located and the direction in which they are pointing during scanning. There are multiple ways to achieve this, which has led to the development of various scientific and commercial solutions. This article compares several mobile scanning solutions for 3D modelling of indoor spaces and highlights their strengths and weaknesses. In modern society, people tend to spend more... (read more)
2017-10-24 04:26:03

Characterizing Activities in 3D City Modelling

The Quest for the Big Picture
3D city models have become common geospatial data assets for cities, and can be utilized for tasks including planning, visualization and decision-making. The field of 3D city modelling is diverse, with a multitude of technical solutions. Even the definition of what constitutes a 3D city model still remains ambiguous. Yet, surprisingly few studies have focused on reviewing the existing activities and assembling the big picture. This article presents some of the key findings from a recent study reviewing major 3D city modelling activities in Finland. 3D city models can be seen as an enabler in the smart city paradigm, operating... (read more)
2018-10-05 11:58:45
Search Filter