The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Spatial information processing is one of the important research contents in information technology. It is the major direction to combine geo-information technique and mobile communication technique in the spatial information processing. In this paper, we have thoroughly analyzed supporting techniques of mobile smart terminal spatial information processing system based on the spatial information's...
The last decade has been a substantial increase in commodity desktop and distributed Geographic Information System applications with client-server or browser-server architectures, mainly as a result of faster hardware and network performance. Nevertheless, there are still problems, in the field of GIS applications, which can not be effectively cooperative used due to the complicated geospatial data...
Geographic information database update is the basis for the running of Geographic Information System (GIS); Geographic database actuality decides GIS's vitality. There are different methods for GIS database update. This paper analyzed the contents of GIS database update and its common methods, provided a feature matching method to implement geographic information database update based on ArcGIS Geodatabase...
The formalization description of user needs is one of key issues in GIS on-demand services. A number of user demand documents is collected, the paper analyzes them in semantics and geometric aspects, discusses something reflected in the demands, which is about datasets selection and spatial data visualization in supplying custom products and on-demand services. The existent resources can be described...
ArcGIS Geoprocessing is an important part of ArcGIS, which is a large-scale geographic information system software launched by ESRI corporation. The ArcGIS Geoprocessing provides an application-oriented and Process-oriented spatial analysis modeling method, so it's a very useful assistant decision-making and programming tools. Project Site location is a typical multifactor comprehensive evaluation...
With the accelerating pace of city's Informatization, how to manage and exhibit three-dimensional architectural model that is a technical difficulty. This paper researches the method of processing massive three-dimensional architectural model. It has been applied in xiamen municipal three-dimensional geographic information system.
At present the development of geographic information system has gradually shifted from 2D to 3D. With the urgent need of 3D geographic information system in the fields of petroleum, geology, town planning, marine, and environmental, how to construct 3D digital map efficiently and easily is the key technology to establish 3D Geographic Information. Implementation method of 3D digital map based on SketchUp...
A new method of real-time downloading and distributed computing model is studied based on mobile geographic information system (GIS) environment. Key technologies are presented in the model, including mobile agent (MA) mobile computing, mobile GIS, global positioning system (GPS), least path computing model, and spatial information distributed grid computing and management model. In order to deal...
Based on Geographic Information System(GIS) technology, the research of 3D geological modeling(3DGM) is carried out. The 3DGM method focused on complex geologic body is put forward, and modeling process is set up. First of all, according to the different strata, index layer of fault-block polygon is built. Then under the restraining of seismic interpretation surface and fault-block boundary, digital...
Spatial analysis is a spatial data analysis technique based on the location and the shape of the geographical object. In this paper, we introduce two spatial data types provided by SQL Server 2008 which refers to Geometry and Geography. As with Shapefile data structure supported by ESRI, Geometry and Geography are object oriented data structures which make it more easily to store semantic information...
This paper is devoted to locating petrol stations in Abidjan, showing their positions on a map to enable consumers to access them more easily. The objective is to study the mode of construction of the stations, identify high concentration areas, empty areas and propose a better organization. This study will also help the motorists to find the nearest filling station by using GPS. The necessary condition...
The following topics are dealt with: oral audio and music processing, music information retrieval, language and speech processing, image processing, 3DTV and computer graphics, virtual reality, visualization and interactive environments, 3D sounds, language acquisition and reproduction, computational geometry, animation, multimedia SOC design and bioinformatics, remote sensing and GIS, DSP-FPGA implementations.
Due to lack of information correlation between different-granularity forest ecological calculation models, construction of different-level virtual forest landscape usually adopts a single ecological calculation model. In order to achieve the information correlation and transition between the different-level virtual forest simulations, this paper puts forwards a multi-granularity virtual forest information...
On the basis of first hand investigation and combined with topography map and related data, and taking TM remote sensing image as the data source, and by using remote sensing technology and GIS technology, the article uses mutual visual explanation manner between operator and computer, the investigation of current biological condition of Hezuo City was carried out, The special topic maps of present...
Protection of ancient building is a hot topic. Recently, so many techniques have been applied to this field. However, the best method to protect them is to present the treasure to more people. Virtual geography environment (VGE) is to visualize and analyze the phenomena on our earth, including ancient building. This paper illustrates a brand-new approach of managing ancient buildings in VGE in advanced...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.