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The Distribution And Management System Of Geoscience Information Based On IIMS

Posted on:2003-05-21Degree:MasterType:Thesis
Country:ChinaCandidate:X YuFull Text:PDF
GTID:2120360062486579Subject:Signal and Information Processing
Abstract/Summary:PDF Full Text Request
Geographic system contains wide range of nature resource information. There are large numbers of geographic information resource. According to variety of reasons, the data has not been made satisfying use of yet. The value of data should bring into play.GIS is the information system which could deal with space data. With the rapidly developing of distributed computing technique , component technique of OOP N network technique and prevalence of internet in society living, WEBGIS--combination of WWW and GIS , is rapidly becoming the most important of development of GIS. WEBGIS play important role on network globalization and true utilization of GIS.Though WebGIS and Web Server could integrate perfectly, WebGIS could only connect and visit one database without the serving function of searching all the data in effect on network. Because the Geographic information involve in many research area and should be spent much time on with large numbers of data, it is so important for us to use geographic information repeatedly by network.The system finished the vector issue of WebGIS and reading function ofdistributed database by the advanced technique at present ------combination ofOKMap (a WebGIS system based on Java technique) and IIMS (Information Integrated Management System). On the one hand, clients could execute basicoperation such as zoom out, zoom in, moving horizontally, hawk-eye and 1:1-display easily on GIS graphics by network with technical of OKMap, Java, Applet, JavaBean and so on. At the same time , system provide distributed searching function on attribute data for clients which make user using geographic information on different database server in network transparently. On the other hand, systemrealization the distributed function of extraction finally by receiving request of query of user with IIMS and metadata database involved, further more system could make manager estimating system endure and requirement of user for management and maintenance by monitoring record information of user' s visiting.
Keywords/Search Tags:IIMS, OKMap, WebGIS, Distributed Database, Java
PDF Full Text Request
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