Web Based On ArcGIS Geographic Information Service System Research And Implementation

With the advent of the era of big data, geographic information industry is faced with newchallenges, how to deal with huge amounts of geographic data, as a new research direction in thegeographic information system. More aspects of the wide application of WebGIS platformenables users to access geographic information services, and now the user service of geography,is a more direct needs, how to remove the multifarious information for customers, and eventuallyfind needed information point, is a focus in this paper, the data processing part. And on the basisof the structures, the geographic service system, the implementation of basic geographicalfeatures.The main content of this thesis are as follows:(1) It’s introduced in the era of big data, WebGIS industry faces many challenges, as well asin the geographic information system at home and abroad, study status of dealing with hugeamounts of data, and how to deal with huge amounts of data to improve the performance of thesystem.(2) By reasonable structures, system architecture, on the basis of the basic function ofgeographic information system, as far as possible to speed up the system efficiency, thereforehas designed a data preprocessing procedure, make the real-time data before the user servicerequest has been first pretreatment process, after a series of analysis, calculation, processing andslice processing, makes the geographic element ordering, in the process of the user sends arequest, can more quickly to return the result. And in the design of database, targeted to thespecial geographic data element set and processing.(3) The Web application based on ArcGIS, mainly to achieve the function of basicgeographic information services, including the optimal path and service area, the optimal busroutes; navigation algorithm is realized and analyzed the functions such as train of thought.These functions basic meet user demand for map service.(4) In the process of the final implementation, using the Flex language, under the environment of flash has realized the map display and a series of whistles.