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City fire control system based on GIS is designed and implemented in this paper. The system database consists of metadata database, basic database, thematic database of fire control and 3d database of important fire-control units. The functions of response alarm, map query and space analysis, navigation and positioning of fire engine are implemented in this system. Some key points in system building...
This paper presents a user study performed to compare the usability of the Wiimote as an input device to visualize information and navigate in Google Earth using two different configurations. This study had the collaboration of 15 participants which performed a set of tasks using the Wiimote as an input device while the image was projected on a common projection screen, as well as a mouse on a desktop...
Navigation electronic map, one of the electronic maps or databases which contain spatial position geographical coordinates can be combined with spatial positioning system and guide man or means of transportation accurately to arrive from place of departure to place of destination with spatial information service function of location-based services and internet application. With the ever-increasing...
China is the largest coal producing country in the world, but its development pattern of coal industry is still at a relatively low level, there are still many problems to be solved in china. Geographical information technology has not fully been utilized in coal disaster prevention and control. It is rare to watch an integrated application of digital mine, and coal warning system based on spatial...
A new method is proposed to implement ship's three dimensional real-time dynamic monitoring based on ArcGIS software platform, that is by means of its animation technology to simulate ship navigation and making use of real-time dynamic information to update the animation. Generation and calculation methods of key frames in an animation track are detailed. Combined with existing monitoring system which...
In this tech-note we demonstrate how multi-touch hand gestures in combination with foot gestures can be used to perform navigation tasks in interactive 3D environments. Geographic Information Systems (GIS) are well suited as a complex testbed for evaluation of user interfaces based on multi-modal input. Recent developments in the area of interactive surfaces enable the construction of low-cost multi-touch...
Tourist navigation systems have used digital maps to provide users with location and route information for a long time. However, without detailed 3D building models, users may miss important turns at some intersections and have problems to find their target buildings. With the advent of Google Earth and Microsoft Virtual Earth, 3D models of buildings in major cities worldwide can be conveniently created...
Information recommendation and filtering techniques have been studied intensively. Traditional tour recommendation systems, which can be considered one of information recommendation systems, usually calculate the shortest path in terms of time or distance. Recently, tour recommendation systems for more general purposes have become an important research topic. In this paper we propose an efficient...
This paper is to practice the art of three-dimensional map based on a university campus which can be used for tourism. The spatial elements and animated character are initially built in Maya, and exported into Virtools. This paper explores ways to make the system interactive and view in the web using Virtools. This paper also presents a general system architecture which is able to be reused in other...
Indoor routing represents an essential feature required by applications and systems that provide spatial information about complex sites, buildings and infrastructures such as in the case of visitor guidance for trade fairs and customer navigation at airports or train stations. Apart from up-to date, precise 3D spatial models these systems and applications need user interfaces as core system components...
This paper tackles the problem of vehicle's geo-localisation in urban areas. For this purpose, global positioning system (GPS) receiver is the main sensor. But the use of GPS alone is not sufficient in many urban environments. GPS has so to be helped with dead-reckoned sensors, map data, cameras, range finder ... In this paper, we propose a novel approach to compute observation of the absolute pose...
Based on the daily management of water conservancy projects in large basin, one of very effective methods is to use the three-dimensional (3D) geographic information system (GIS), which can greatly improve efficiency and cut down the costs resulted from the large area, complicated situation of terrain, and the higher overhead expenses. However, the most frustrating barriers to the widespread use of...
With the growth of massive information on the Web, information recommendation and filtering techniques have been studied intensively.Traditional route search systems, which can be considered one of information recommendation systems, usually calculate the shortest path in terms of time or distance.Recently, route search systems for more general purposes have become an important research topic.In this...
With the development of virtual reality simulation technology, virtual campus has become an important field of research. Oversimplified and lack of reality in most of traditional campus's illustration; as a result, there are limitation for its practical value. The 3D model of virtual campus not only offers the natural, real, visual representation of real campus, and also keeps good interaction with...
Vessels navigate an inland waterway are traditionally using Inland ECDIS (Electronic Chart Display and Information System). In this way, all the information about the navigational environment are displayed in the form of two dimensional symbols, such as navigation marks, geographic objects etc. Some of them contain the 3rd dimensional information such as sounding, land elevation, etc. The 3rd dimensional...
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