scholarly journals APPLICATION OF THREE - DIMENSIONAL SOLID MODELING OF VIRTUAL REALITY TECHNOLOGY IN SHIP ASSEMBLING

2015 ◽  
Vol 115 ◽  
pp. S612
Author(s):  
R. Lysemose Poulsen ◽  
K. Seiersen ◽  
D. Oksbjerre Mortensen ◽  
C. Grau ◽  
A. Boejen

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Jing Li ◽  
Tao Hou

From the construction of “new socialist countryside” to the proposal of “full coverage of village planning,” rural construction has gradually been pushed to a climax. However, the current situation of rural landscape construction in China is not optimistic. On the one hand, the rural landscape deviates from its rural and regional characteristics due to deliberately seeking novelty and differences. Based on these two extreme development trends, this article uses virtual reality technology to construct a rural landscape virtual-roaming system, and randomly select 25 people, each group of 5 people, a total of 3 groups, enter the system in batches with a real reduction degree of 30%, 45%, 60%, 75%, and 80% for experimentation and score the system after the experience. The true reduction degree of the first group is 30%; the true reduction degree of the second group is 45%; the true reduction degree of the third group is 60%; the true reduction degree of the fourth group is 75%; and the true reduction degree of the fifth group is 80%. After analyzing the experimental data, it is concluded that when the true reduction degree of the system goes from low to high, people’s satisfaction is higher; when the true reduction degree is as high as 80%, the satisfaction is as high as 9 points; when the true reduction degree of the system goes from low to high, people’s sense of immersion is getting deeper and deeper. When the true reduction degree is 30%, the lowest score for immersion is 1 point; when the true reduction degree is 80%, the lowest score for immersion is 7.5 points; the true reduction of the system decreases from high to low; when it is high, people’s interaction degree becomes stronger and stronger. When the true reduction degree is 30%, the lowest interaction degree score is 2 points; when the true reduction degree is 80%, the lowest interaction degree score is 9 points; it can be seen from this that, with the increase in the degree of realism of the rural landscape virtual-roaming system, it is extremely difficult for people to find whether they are in the virtual or the reality, and their immersion in virtual reality is getting deeper and deeper. This test also confirmed the superiority of the virtual roaming system in rural landscapes, and the experience is extremely effective.


2012 ◽  
Vol 490-495 ◽  
pp. 2333-2336
Author(s):  
Man Yu Zhang ◽  
Wei Min Zhao

Recently, the computer technology, especially computer graphics, networks, multimedia, three dimensional simulation developments, injected virtual reality technology with new vitality, which also give 3D virtual scene a direction. The article mainly discusses technology of virtual building scenery, application in today's independent virtual building scene’s deficiency, and the integration of 3D virtual reality, locality and perspective advantages.


2011 ◽  
Vol 225-226 ◽  
pp. 1301-1304
Author(s):  
Li Juan Qin

At present, virtual reality technology is research hot spot in computer science. Campus roaming system is one application aspect of virtual reality technology. It provides a new means for digital campus. This paper gives a detail discussion for the design plan for three-dimensional virtual campus system with the aim to provide a practical avenue for the establishment of virtual campus roaming system.


2012 ◽  
Vol 487 ◽  
pp. 568-570
Author(s):  
Zhi Yi Mao

Also known as virtual reality or virtual reality environments virtual environment, is rapidly developing a comprehensive computer and interactive graphics technology, which integrates computer graphics, multimedia, artificial intelligence, multi-sensor, network parallel processing, the use of computer-generated three-dimensional space image synthesis technology to achieve the goal, through visual, hearing, touch, in order to render the graphics and animation, the viewer, "seeing is bright." Virtual reality technology is an integrated building design approach, designed to reduce labor intensity, shorten the design cycle, improve design quality, saving investment. Designers to design the building and engineering units can communicate with each other on the World Wide Web.


2012 ◽  
Vol 588-589 ◽  
pp. 1320-1323
Author(s):  
Li Xia Wang

This paper takes the virtual reality technology as a core, has established the housing virtual reality roaming display system, Under the premise of the detailed analysis of system architecture, We focus on how to form the terrain database and the scenery three-dimensional database by using the MultiGen Creator, and call OpenGVS through MSVC to carry on the real-time scene control and the method of the complex special effect realization.


Author(s):  
E. P. Canevese ◽  
T. De Gottardo

The morphometric and photogrammetric knowledge, combined with the historical research, are the indispensable prerequisites for the protection and enhancement of historical, architectural and cultural heritage. <br><br> Nowadays the use of BIM (Building Information Modeling) as a supporting tool for restoration and conservation purposes is becoming more and more popular. However this tool is not fully adequate in this context because of its simplified representation of three-dimensional models, resulting from solid modelling techniques (mostly used in virtual reality) causing the loss of important morphometric information. <br><br> One solution to this problem is imagining new advanced tools and methods that enable the building of effective and efficient three-dimensional representations backing the correct geometric analysis of the built model. <br><br> Twenty-year of interdisciplinary research activities implemented by Virtualgeo focused on developing new methods and tools for 3D modeling that go beyond the simplified digital-virtual reconstruction used in standard solid modeling. Methods and tools allowing the creation of informative and true to life three-dimensional representations, that can be further used by various academics or industry professionals to carry out diverse analysis, research and design activities. <br><br> Virtualgeo applied research activities, in line with the European Commission 2013’s directives of Reflective 7 &amp;ndash; Horizon 2020 Project, gave birth to GeomaticsCube Ecosystem, an ecosystem resulting from different technologies based on experiences garnered from various fields, metrology in particular, a discipline used in the automotive and aviation industry, and in general mechanical engineering. <br><br> The implementation of the metrological functionality is only possible if the 3D model is created with special modeling techniques, based on surface modeling that allow, as opposed to solid modeling, a 3D representation of the manufact that is true to life. <br><br> The advantages offered by metrological analysis are varied and important because they permit a precise and detailed overview of the 3D model’s characteristics, and especially the over time monitoring of the model itself, these informations are impossible to obtain from a three-dimensional representation produced with solid modelling techniques. The applied research activities are also focused on the possibility of obtaining a photogrammetric and informative 3D model., Two distinct applications have been developed for this purpose, the first allows the classification of each individual element and the association of its material characteristics during the 3D modelling phase, whilst the second allows segmentations of the photogrammetric 3D model in its diverse aspects (materic, related to decay, chronological) with the possibility to make use and to populate the database, associated with the 3D model, with all types of multimedia contents.


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