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Forensis - Imaging Processes, Satellite Images, 3D Visualizations, Models And Videos

HKW ForensisFrom tracing fingerprints to tracking Internet activities, forensics is central to the ways by which states police and govern their subjects. Through its media representations it has also become a defining feature of contemporary culture. Forensis seeks to invert the direction of the forensic gaze and designate the emergence of new aesthetic-political practices by which individuals and independent organisations use new technologies aesthetic practices, and architectural methodologies to bear upon a range of issues from political struggle to violent conflict and climate change. The exhibition presents the work of the Forensic Architecture project at Goldsmiths, University of London. It includes the presentation of of forensic investigations — involving imaging processes, satellite images, 3D visualizations, models and videos — were mobilised as evidence on behalf of prosecution teams, civil society organizations, activists, human rights groups, and the United Nations.  Read More

U.S. DOT Pipeline Mapping System

npmsThe National Pipeline Mapping System (NPMS) is a dataset containing locations of and information about gas transmission and hazardous liquid pipelines and Liquefied Natural Gas (LNG) plants which are under the jurisdiction of the Pipeline and Hazardous Materials Safety Administration (PHMSA). The NPMS also contain voluntarily submitted breakout tank data. The data is used by PHMSA for emergency response, pipeline inspections, regulatory management and compliance, and analysis purposes. It is used by government officials, pipeline operators, and the general public for a variety of tasks including emergency response, smart growth planning, critical infrastructure protection, and environmental protection. Read More

Creating Elevation Contours Within a House Footprint From Paper Notes

golden.3d.siteFrom a piece of paper and one digital file, can Surfer generate a beautiful and informative contour map of elevation values? You bet it can! There are a few steps to this process. You need to convert your paper data into digital x,y,z data, grid that x,y,z data, create a BLN file of the outline of the house, and blank the grid file with that outline. Then you can create a contour map of the blanked grid, and display the DXF of the floorplan overlaid on the contours if desired. The steps for each of these processes are detailed below, and sample files are attached so you can step through this process yourself. Read More

NIBS National BIM Guide for Owners

nibs bim guideA building information modeling (BIM) guide for building owners has been developed under the auspices of the National Institute of Building Sciences. The National BIM Guide for Owners is a new guide that building owners can adopt to provide a documented process and procedure for their design team to follow in order to produce a standard set of BIM documents during the design and construction of the facility, and for maintenance and operations of the facility upon handoff. The National BIM Guide for Owners is based on the foreign, federal, state and local BIM guides that currently exist, but geared to a generic facility with uniform requirements for use by a variety of government, institutional and commercial building owners. Read More

A Route Planner for Every Eventuality - Report about GIScience & HeiGIT

uni heridelberg transitWhen a devastating earthquake struck Nepal in the spring of 2015, the geoinformatics scientists at Heidelberg University leapt into action: The researchers and students set up an emergency route planner on the Internet, just as they had five years before after the earthquake in Haiti. Disaster workers were able to use the planner to identify roads that were still passable and determine the fastest route to the affected areas. They also obtained data on key points of contact such as hospitals, rescue centres and emergency camps. This humanitarian support through the development of disaster mapping technologies is just one example of the hands-on projects of the geoinformatics scientists at the Institute of Geography at Heidelberg University. Their work is based on geographical data from a variety of sources that the scientists analyse from a variety of aspects. Read More

Geospatial Analysis of the Building Heat Demand and Distribution Losses in a District Heating Network

building 3d heatThe district heating (DH) demand of various systems has been simulated in several studies. Most studies focus on the temporal aspects rather than the spatial component. In this study, the DH demand for a medium-sized DH network in a city in southern Germany is simulated and analyzed in a spatially explicit approach. Initially, buildings are geo-located and attributes obtained from various sources including building type, ground area, and number of stories are merged.

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Extraction and Simplification of Building Façade Pieces from Mobile Laser Scanner Point Clouds for 3D Street View Services

mdpi.3d.exExtraction and analysis of building façades are key processes in the three-dimensional (3D) building reconstruction and realistic geometrical modeling of the urban environment, which includes many applications, such as smart city management, autonomous navigation through the urban environment, fly-through rendering, 3D street view, virtual tourism, urban mission planning, etc. This paper proposes a building facade pieces extraction and simplification algorithm based on morphological filtering with point clouds obtained by a mobile laser scanner (MLS).

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3D at Esri: 2016 in Review

3d esri arcgisIn 2015, the team at Esri started to roll out 3D capability across the ArcGIS platform. That effort laid the groundwork for an incredible 2016 in which we’re seeing 3D used in all flavors of Esri customer environments and domains. Our 3D support is continuously improving with a fantastic array of releases and updates. With our broad entry into 3D, we’re now starting to see demand increasing for some of the harder domain-specific requirements that we’ll have to tackle into the future. 

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How to Integrate CAD and BIM Standards for AEC Projects

cad bim intIf you thought BIM was going to eclipse CAD in the AEC world, think again. Even with the growing adoption of Revit, CAD is still being used on a lot of projects. So CAD folks and BIM folks need to learn to get along – capitalizing on BIM tools while making sure any AutoCAD 2D-based work is completed correctly. Of course, that’s easier said than done. Ensuring your CAD files are compatible with Revit can be challenging. So where do you start? This is the topic of a popular class at Autodesk University 2015 – Seamlessly Integrating CAD and BIM Standards for AEC Projects. Hosted by David A. Butts, a BIM Specialist with Gannett Fleming, the class (now available to view online) walks though the key differences in CAD and BIM standards and offers a useful template for smooth file sharing. Read More

Multi-User 3D Augmented Reality Application for Collaborative Interaction using Virtual 3D Objects

3dcityThis thesis covers the development of a network supported multiuser augmented reality application for mobile devices. A presenter can load 3D models dynamically, display them on an augmented reality 2D tracker and is capable of manipulating certain single objects. These manipulations are already well-defined in advance through the hierarchy of the 3D object. Executable manipulations are translation, rotation, scaling and the change of materials. Any number of spectators can follow the presentation with their own device from a point of view of individual choice. If the data of the model is not present, Thoughts are made in advance, as follows, as well as chosen solutions. With the prototype of a user study. The choice is between static, dynamic and combined lighting. Additionally, the app is evaluated in the study. Read More

2016 – The Construction Year In Review

bim periodicA year dominated by the historic referendum on the UK’s membership of the European Union, 2016 has been a year of mixed fortunes for the construction industry. In this NBS review of the year we look at some of the key headlines from the year gone by and look forward to 2017.  The Brexit decision and American election result have loomed large this year and those looking for respite in 2017 may be hard pressed to find it. 

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List of Geospatial Open Data Resources in Canada

3d urban quebecRecently, I read an article about the Canadian Geospatial Data Infrastructure (CGDI) that seeks to explain why the CGDI, among many things, is relevant. While the Canada Centre for Mapping and Earth Observation (CCMEO) who is in charge of the CGDI have updated it to reflect changes to the Government of Canada’s own Open Data infrastructure, the CCMEO only offers a small glimpse of what’s on offer for Geospatial Open Data in Canada. Right now,  there are few resources discussing the various open data offerings covering Canada. Of the few that exist many are either poorly engineered, out of date, or sometimes both.  I’m providing a snapshot of open geospatial data resources covering Canada as 2016 comes to an end. Read More

Smart Point Cloud: Definition And Remaining Challenges

CityScene gamesimDealing with coloured point cloud acquired from terrestrial laser scanner, this paper identifies remaining challenges for a new data structure: the smart point cloud. This concept arises with the statement that massive and discretized spatial information from active remote sensing technology is often underused due to data mining limitations. The generalisation of point cloud data associated with the heterogeneity and temporality of such datasets is the main issue regarding structure, segmentation, classification, and interaction for an immediate understanding.

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Integrating Dynamic Data And Sensors With 3D Semantic City Models In The Context of 3D Cities

city 3d modelsSmart cities provide effective integration of human, physical and digital systems operating in the built environment. The advancements in city and landscape models, sensor web technologies, and simulation methods play a significant role in city analyses and improving quality of life of citizens and governance of cities. Semantic 3D city models can provide substantial benefits and can become a central information backbone for smart city infrastructures.

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3D Change Detection – Approaches And Applications

2g tech visDue to the unprecedented technology development of sensors, platforms and algorithms for 3D data acquisition and generation, 3D spaceborne, airborne and close-range data, in the form of image based, Light Detection and Ranging (LiDAR) based point clouds, Digital Elevation Models (DEM) and 3D city models, become more accessible than ever before. Change detection (CD) or time-series data analysis in 3D has gained great attention due to its capability of providing volumetric dynamics to facilitate more applications and provide more accurate results.

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