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Multimedia technology-based Visualization of Spatial Information

multimediatechnique three obstruct chalk, J___ ● __ a (Wuhan University of Science and Technology Land Surveying and Mapping Science, 430070) set of multimedia text,[link widoczny dla zalogowanych], graphics, images, sound, animation and video and other media and all kinds of media units in one group, which visual, auditory, tactile and other forms of visual media,[link widoczny dla zalogowanych], images, vivid expression of spatial environmental information. Visualization of spatial disorder will be a lot of environmental information into easy to operate and the perception of human visual information. Multimedia technology and visualization, GIS and cartography and other disciplines combine to promote visualization of spatial information and development. This article from the following aspects of multimedia technology based on visualization of spatial information to start a discussion and research. 1. Study the visual and spatial information related to multimedia technology, scientific visualization, understanding science, and analysis of their spatial information visualization with the internal relations and the significance of spatial discussed the basic principles of information visualization , concept, character and substance. 2. Multimedia data model is the realization of spatial information visualization, an important prerequisite, the authors studied and constructed based on non-first normal form (NF.) Methods of NF multimedia data model, and hypertext model was extended to hypermedia data model, discusses of the two mathematical description of multimedia data model, algebra, structure and organization of storage methods, and gives examples of these two methods. 3. Eight of the deep object-oriented multimedia data model,[link widoczny dla zalogowanych], NF multimedia and hypermedia data model based on the data model, proposed an alternative organization and storage of multimedia data model, which is based on the relationship between the object of a hypermedia data model, The principle of the model, method, standardized description, algebraic operations, organization and storage model, and gives examples. 4. The expansion of domain-based calculus, constructed and designed a visual spatial information query language sIVQL, the mathematical description of the SIVQL, limited definition, relational algebra and query algebra, and the corresponding application example. 5. Visualization of spatial information described in the description of multimedia and multimedia maps or expression} discusses the visualization of the mathematical description of the icon and its design and expression; design and described the synergy between the media description method - time notation . 6. In principle, methods, techniques and theory, based on the combination of China and Taiwan as a project in Australia - Hainan Provincial Land and Resource Information System research requirements, designed and developed a multimedia-based geographic information visualization System - General situation in the province of Hainan geographic information system, the system has been installed in the Hainan Provincial Government and the Governor's Office and the Planning Department of the portable computer and start using. Through this research, the paper in a number of theories or methods were compared on the important improvements and innovations,[link widoczny dla zalogowanych], including: use of relational database theory and non-first normal form (NF.) Method to study and construct suitable for multimedia data management, NF . Multimedia data model,[link widoczny dla zalogowanych], discussion of the organizational strategy of the model, storage structure and method algebra; hypertext model by chain extension nodes and to construct an alternative for an effective method of multimedia data management - Hypermedia Data Model systematically discusses the organizational approach of the model, storage structure and expression; in deep analysis and commentary on eight object-oriented multimedia data model, NF multimedia and hypermedia data model based on the data model, proposed an alternative organization spatial information of multimedia data model, which is based on the relationship between the object of a hypermedia data model (O-RHDM), describes the principles and methods of the model; using set theory and relational algebra on the O-RHDM related concepts and basic operation standardized descriptions and definitions, the theoretical foundation for this approach; constructed object and the object of a chain of nodes are two basic models, as the O-RHDM organizational strategies and methods; designed hierarchical node object model, as the O-RHDM the storage mechanism; defines the storage structure of O-RHDM, indicating that the O-RHDM operability; the expansion of domain-based algorithms, structure and design of a visual spatial information query language SIVQL, the mathematical description of the SIVQL, relationships Algebra and query algebra; described the visualization of spatial information (continued on page 85) Do not