Scientists from Russia, China and India are developing software to convert 3D laser scanner point clouds into BIM-ready 3D models. The project won the BRICS STI Framework Programme contest, a competition among the BRICS countries in the field of science, technology, and innovation.
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The BRICS STI Framework Programme aims to support excellent research on priority areas which can best be addressed by a multinational approach. The initiative should facilitate cooperation among the researchers and institutions in the consortia, which consists of partners from at least three of the BRICS countries.
Specialists from Peter the Great St. Petersburg Polytechnic University, the Russian Academic Excellence initiative university, East China Normal University and the Indian Institute of Technology, Roorkee, are developing software to analyze 3D images of infrastructure facilities, prepare cross sections and etc. Data are gathered using laser scanning technology and photography. The software will be useful at all stages of the facilities' life cycle, including finding defects and identifying non-compliance of constructions with project design, as well as for computer engineering before making repairs.
Laser scanner point cloud data allows engineers to visually analyze the building site in 3D without visiting it. Master the workflow for converting 3D laser scanner point clouds and photos into Building Information Modeling (BIM) —ready 3D models, it helps build an effective and reliable workflow, captures large urban areas, and supports planning and design needs of the housing sector which is at a tipping point and will be the economy’s next big growth driver.
This winner of the competition of the BRICS countries in the field of science, technology, and innovation (BRICS STI Framework Programme winner) will give a tailwind and additional support to expanding affordable housing in Asia’s third-largest economy.
With laser scanner point cloud data, engineers now have a way to visually assess a building site in 3D without going there in person. It's the perfect reference for viewing the state of the building site, and it's also a great tool for checking if the project has been completed according to the plan. But it really starts to shine when it gets converted into says Vladimir Badenko, professor of the Institute of Civil Engineering, Peter the Great St. Petersburg Polytechnic University (SPbPU).
The international team of scientists is developing tools for processing 'raw' laser scanning data. At the first stage, the information on an object is converted into point clouds of the required density. To visualize them, specialists prepare projections combined with photography, which significantly improves the segmentation of an image. Using these projections to model facilities, it makes it possible to successfully display all 3D-data on a plane (monitor). Therefore, the quality and speed of processing improve. Furthermore, it allows a more flexible setting of the scale, and as precise an image as possible can be obtained without 'shadows'.
Supercomputer Center 'Polytechnic' at Peter the Great St. Petersburg Polytechnic University.
It should be noted that a considerable amount of data is processed using the facilities of the Supercomputer Center 'Polytechnic' at Peter the Great St. Petersburg Polytechnic University.
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The same flexibility BricsCAD offers in 3D modeling, it also offers in attaching information to building elements.
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BricsCAD BIM includes an extensive library of windows, doors etc.
BricsCAD BIM allows you to easily modify positions and dimensions. To design walls in BIM, draw their footprints in 2D and then pull them up to the desired level. You can also specify their level by entering dimensions interactively.
Arrays of windows and doors are included in the BricsCAD BIM design sets. To specify windows and doors, choose or modify a design from the library or create your own designs from scratch.
To give you greater flexibility in developing BIM designs, a single drawing file contains a “site,” which can have multiple “buildings,” with each building holding one or more “stories.” The default drawing holds one building with three stories. You specify properties for the new site, building, and story elements.
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The same flexibility BricsCAD offers in 3D modeling, it also offers in attaching information to building elements. BricsCAD stores building materials and compositions in its project database. All BIM database features are accessible through the dockable BIM panel.
Building materials contain information about specific materials along with layer names and rendering definitions.
You can add a custom number of tags to a building composition. Those tags will serve as a filter when searching through your database for compositions.
The library database included with BricsCAD allows you to reuse compositions and building materials across multiple BIM projects. To share information among databases, simply drag building materials and compositions from one database to another.
Create a detail section using the option named “Detail” of the bimSection command. Define the volume of the section by specifying three corner points. It uses the dynamic UCS as the base of the box; the base plane is also the section plane.
Overlay your rendered model on a photograph using existing vanishing points and angular lines for a most realistic fit.
The redesigned drawing generation feature lets you generate sheet sets in seconds. The dockable Sheet Set manager offers smooth navigation between the project drawings.
Villa PM on BricsCAD by courtesy of Architrend Architecture
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