[Reprinted] 3dgis and VR Applications in planning

I have read an article on the internet, comparing the 3 D GIS and virtual reality applications in the planning, and particularly pointing out that the three-dimensional applications involved in planning are different from the architectural performance, parts pursue better and more realistic results, but to use visualization technology to allow participants to build consensus and form a common image of future communities where non-professionals can communicate. (Transferred from: virtual space and planning design-Shen Zhenjiang http://blog.upla.cn/blog.php? Do = showone & tid = 4360) Google Earth-3 DGIS, secondlife-Virtual RealityAuthor: Zhjshen

Description: Second Life
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Most of the articles in the international magazine CEUS in recent years are about 3dgis-cadastral system, and there are several special numbers.

 The cadastre system is also evolving towards 3dgis. The establishment of three-dimensional data and real estate ownership relationships, especially the databases of multiple Owner Buildings, is a big topic.

 Cadastre's 3dgis database can be said to be crucial to city management, because a three-dimensional management system is intuitive, easy to understand, and easy to operate. Cadastre System should be said that the important problem is to reflect the current situation of the city and database maintenance, so that it can reflect the past and current situation of the city. However, cadastre does not focus on the future, planning and design, or the future dream. cadastre should be an official or developer database for management.

   Urban planning and participation are important. The official database has many problems for participation, so it cannot be made public. The emergence of Google Earth solves this problem. Participating 3dgis databases do not need official support, but support from users. Users can use sketch to create 3D data, A variety of media with coordinate information, including virtual reality, augmented reality, 360-degree photos, various texts, and so on, can collect a lot of information about the current situation. Planners can use these materials to consider the planning and express the future planning scene in a three-dimensional manner. In addition, software such as communityviz and index can be used to create virtual vision for future communities based on GIS, which can be combined with cadastral system.

  Since the 1990s s, the development of virtual reality has attracted a lot of attention, from blaxxun and activeworlds to secondlife. Such a three-dimensional system of virtual reality can be used to build a virtual three-dimensional space, she is different from the 3dgis system in terms of her styling capabilities. But most importantly, virtual reality allows users to directly communicate with each other. Currently, Google Earth only allows users to read data from each other through the media of text photos. Therefore, secondlife's virtual community communication function is also very meaningful for participation, so that users can participate in discussions about future Community Planning dreams and exchange opinions.

In order to plan the participation in Visual Research, Tony Professor Hall's credit was a lot of controversy at the time. In the 1980 s, the British Parliament used a computer rendering image to evaluate the plan, and everyone only emphasized the accuracy and distortion of its performance. Later, with the development of computer technology, R. Professor langenddorf, m.j. Professor shiffer, W. h. professor Jepson, Professor day at Bath University, and so on, started to realize planning participation only when Space Media (Geographic Information Systems, virtual reality, photos, etc.) were used, data accuracy is not significant, and one-sided pursuit of realistic performance has no practical value. Using visualization technology allows participants to build consensus, the formation of a common future Community image (computer simulation), a variety of non-professionals can communicate is the most important topic. Professor Bishop of Australia has done a lot of work in environmental management in recent years. It can be said that in China, planning participation is a new thing. President du of Beijing Planning Institute also talked about the recent work with the people to participate in the planning. There are also some good practices, but participation has not yet been popularized. Therefore, we still have insufficient understanding of the planning technologies involved. For example, the visualization technology is not simply a manifestation of architecture and planning. Experts engaged in construction and planning can also understand how to conduct planning and design exchanges. In addition, M. Professor batty and his young disciple Andy Dr. Smith has made great achievements in making the whole city visualization technology. In Japan, Kanazawa University, Professor songben of Nagoya Industrial University, and Professor Ma Zhun of Kyushu University, he also made a lot of work in Japan's participation in planning and visualization technology.

  However, secondlife is not a spatial database and cannot manage and analyze planning materials. In addition, Google Earth lacks the ability to process and analyze spatial data, but in space data management, google Earth still has potential.

  Tools involved in planning should be combined with the functions of secondlife and Google Earth on a platform similar to communityviz. In addition, it would be better to refer to the cadastre system for the support of a knowledge system. In the future, the two software should be combined on the basis of GIS and Bim, which also requires the efforts of these companies.

  In addition, when I made a speech in China, many students in architecture mistakenly thought that virtual reality is used for architectural performance. Of course, virtual reality has certain performance capabilities, but the architectural performance should be CAD and rendering, animation CG category. It should be said that cadastre, movie, and rendering graphs are made by experts, but three-dimensional data of Google Earth is made by netizens, and three-dimensional data of secondlife can have a prepared database, there can also be parts made by netizens. However, the combination of three-dimensional data means that the effect of three-dimensional data is the responsibility of netizens, this is the difference from the designer's architectural performance. In English, the purpose of planning participation is community visioning process.