Research And Implementation On The Humanized Path-finding Algorithm Based On ArcGIS API For Flex

With the rapid development of the computer technology and geographic information system (GIS), construction of Digital Earth, Digital States, Digital City and other regional hot spots or digital home and abroad in recent years GIS has long been an important direction of technology development. Internet as a worldwide platform to promote the use and rushed the development of various fields undoubtedly the first choice for the rapid development of Internet geographic information system to provide a broad space for development. However, the existing network platform for geographic information system environment, there are still difficult for clients to deploy, use limitations, interactive interface unfriendly and many other negative factors in the promotion and application.At present, with a combination of desktop applications, advantages and benefits of rich Internet application client (Rich Internet Applications, RIA) technologies, the Internet ushered in the client applications a revolution. Among the many rich client technology, Flex technology undoubtedly the most representative, the fastest growing. To perfect the system of its development environment, excellent customer interaction experience and cross-browser, cross-platform advantages in one, become rich Internet application client technology in all areas of research focus.In this paper, the path to search for current digital traffic problems, proposed to the number of traffic based on Flex technology network path search method of human technology to solve them. This paper analyzes and compares the digital transport network path to achieve a variety of search algorithms, and the number of Flex-based transport network path search technology to achieve humanity carried out a feasibility analysis, through analysis and comparison, derived search in the path of humanity to achieve Flex the feasibility of conclusions and advantage. Then this article on Flex technology from many areas was introduced in the final system implementation techniques used to do the groundwork. Then this paper, the feasibility analysis under the proposed scheme through the use of ActionScript3 language programming path search algorithm is analyzed, focusing on analysis of language use ActionScript3 Flash virtual machine technology to achieve the path searching the principle of human nature and method, and the introduction of based on these principles and methods to achieve professional API mapping service access technologies - ArcGIS API for Flex. ArcGIS API for Flex by analyzing the composition, class structure, the map service organically integrate with Flex, verify the feasibility. Finally, the previous section that using the knowledge and skills, application of open source Flex framework FlexViewer design ideas, design a technology based on Flex Qingshan District, Baotou City Bus Route Query System. In the realization of the system process, this paper analyzes the ArcGIS Server implementation principle of the tile map, and then through the use of Flex communication technologies (from the ArcGIS Server map service) to get a custom map tile naming format, and to get the tiles Bus route map is applied to check the map display. Then realize this technology in the Flex Bus inclusive site enter a query, the optimal mode of public transportation algorithm selection, transportation human factors into account in route selection and the Flex program analysis and comparison of visual functions, and eventually completed the Application System.Through these studies and to achieve the ultimate demonstration of the Flex-based digital transport network path searching human feasibility of the use of the technology and features for better application of this technology provides further information.