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Design and Implementation of Engineering Investigation Graphics Interactive System

Author: LiWeiLin
Tutor: JiangZuoMingï¼›ShiWenSheng
School: Xi'an University of Electronic Science and Technology
Course: Computer technology
Keywords: Primitive Packet output Incremental data transfer Asynchronous interaction
CLC: TP391.41
Type: Master's thesis
Year: 2009
Downloads: 72
Quote: 0
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Abstract


In the traditional graphics system, the user is difficult for real-time observation and interworking interactive interface in the form of graphics. With the development of network technology and GIS technology, the increasingly large amount of GIS data Web publishing the transmission capacity of the network put forward higher requirements, at the same time expanding the range of applications of Web graphics interactive applications, geographic information services the demand put forward higher requirements, graphical browser on the network, edit, database information interactive, dynamic graphics performance data for multi-range multi-level graphics functions. In this paper, the principle of interactive graphics technology, engineering survey and interactive graphics system requirements, the original geotechnical engineering investigation carried out to refine and improve the functionality and performance, the development of a new software system based on WEB technology . In the actual design and development process of some key technologies in-depth study, improvement and innovation focus from the following aspects: (1) graphic data organized space entity model. Hierarchical organization of elements as the basic logic unit designed SVG-based meta-database. (2) the use of packet output graphics data output to the meta-database, SVG documents to the meta-database conversion. Data packet output makes clear structure and facilitate the effective organization of the graphics data. (3) database design using NET component that provides a disconnected data access model. (4) the use of AJAX technology page without refreshing updated. XML standards-based incremental data transfer strategy, using the DOM to access and maintain XML documents and graphics in the client user interaction. Geological survey work, the system has a very important significance to improve the system of data management capabilities and real-time interactive capabilities of the system play a role in the geological survey of interactive graphics work, the actual operation of the system performance is generally satisfactory, meet the full range of information support needs of field work departments, improve work efficiency. The system provides a new way of thinking to solve the problem of interactive vector graphics, and provides a new way for the release of modern engineering geology graphics can also be extended to other spatial data-based interactive graphics system.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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