Simulation Study on the Geographical Adaptability of the LargeScale Cultural Buildings in Shanshui Cities Based on the VR Technology The virtual reality (VR) technology is an important direction of the simulation technology. It is a combination of the simulation technology and the computer graphics, the manmachine interface technology, the multimedia technology, the sensor technology, the network technology and other technologies. It is a challenging crosscutting technology frontier subject and research field. By giving full play to the application advantages of this technology and combining with the development of Chongqingxe2x80x99s architecture in the mountain city and the general outline of its form, this paper draws out the positive influence of the urban landmark buildings on the natural features and the artificial engineering environment of the city at the visual level as well as the economic and cultural levels. Based on the VR technology, the geographic adaptability simulation of the largescale cultural buildings in Shanshui cities provides the important guidance for the largescale cultural buildings in Shanshui cities on the basis of giving full play to their technological advantages.

Marking the City: Interactions in Multiple Space Scales in Virtual Reality This article shows an overview of an immersive VR application to explore, to analyze and to mark largescale photogrammetric 3D models. The objective is to interrogate the effectiveness of the proposed navigation process and annotation tools for spatial understanding. Due to the amount of interactions, different kinds of menus were necessary: desktop coordination menu, radial menu attached to the controller and 3D spatial menu for creating markers. Besides the menus, the navigation tasks through different perception space scales required a great number of interactions metaphors, patterns and techniques displaying the complexity of the user experience in Virtual Reality for understanding and analyzing urban digital twins. Those interactions allowed by the user interface were then analysed and classifyed according to a theoretical background and were experimented in preliminary tests with end users. Although designed for particular needs of the army, the tools and interactions can be adapted for city models explorations and urban planning. For future steps of the research, a usability study is going to be performed to test the performance of the interface and to have more end users feedback.