The magic of Ajax & WebGIS
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The magic of Ajax & WebGIS

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My presentation is about AJAX and its applications in WebGIS.

My presentation is about AJAX and its applications in WebGIS.

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    The magic of Ajax & WebGIS The magic of Ajax & WebGIS Presentation Transcript

    • The magic of Ajax & using in Web GIS Student: Bahman Jamali Email : mazinan@gmail.com May 2013
    • Outline May2013The magic of Ajax & using in WebGIS2 Introduction Ajax, What is it?! How does it work? Examples In-Depth Ajax Power Ajax & WebGIS Case study References Questions?
    • Introduction Development Web technolog: Combine HTML & JavaScript & Css & … grab data from the server without reloading new pages into the browser the technology that lets Web software act like desktop software May2013The magic of Ajax & using in WebGIS3
    • Ajax, What is it?! by Jesse James Garrett of Adaptive Path, February 18, 2005 May2013The magic of Ajax & using in WebGIS4 is an acronym Asynchronous Javascript And XML  Browser-based presentation using HTML and CSS  Data stored in XML format and fetched from the server  JavaScript to make everything happen
    • How does it work? 1) write code in JavaScript that can fetch data from the server 2) The XMLHttpRequest object, to send a request to the server 3) The data that comes back from the server can be XML or just plain text May2013The magic of Ajax & using in WebGIS5
    • How does it work? May2013The magic of Ajax & using in WebGIS6  wait for the data in the background and spring into action when the data does appear
    • Examples May2013The magic of Ajax & using in WebGIS7 Searching in real time with live searches Chatting with friends Dragging and dropping with Ajax Gaming with Ajax Getting instant login feedback Ajax-enabled pop-up menus Modifying Web pages on the fly Google Maps and Ajax
    • In-Depth Ajax Power May2013The magic of Ajax & using in WebGIS8
    • Ajax & WebGIS May2013The magic of Ajax & using in WebGIS9 • can be defined as ‘‘a Web application that combines data from more than one source into a single integrated tool’’
    • Case study May2013The magic of Ajax & using in WebGIS10 • AJAX integration with GIS web services Step 1: Browser (AJAX) request to the web server. The request may be spatial information or map. Step 2: Web server tier has the responsibility to change the response comes from the GIS server Step 3 :The basic function of GIS Application server is to receive the request comes from the web server, and then contact the data tier for reading files or database Step 4: The data tier has the GIS files and database include tables for using MySQL, this tier communicates with the GIS server directly.
    • • Faster web actions • Less or no page refreshes • Reduce network traffic • Decreased server-side bandwidth usage • Web apps that rival installes GUI apps • Very suitable for big data like maps. • More interactivity for WebGIS May2013The magic of Ajax & using in WebGIS11 Conclusion
    • May2013The magic of Ajax & using in WebGIS12 References
    • May2013The magic of Ajax & using in WebGIS13 Thanks Thank you Now Open Discussion! Available for download in Mazinan.ir