Proceedings, XXth congress: Proceedings, XXth congress

Altan, M. Orhan

Bibliographic data

Multivolume work

Persistent identifier:: 1663674213

Title:: Proceedings, XXth congress

Sub title:: Istanbul, 12 - 23 July 2004

Year of publication:: 2004

Place of publication:: Istanbul

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1663674213

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.; Auch bezeichnet als XXth International Congress for Photogrammetry and Remote Sensing

Editor:: Altan, M. Orhan

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Document type:: Multivolume work

Volume

Persistent identifier:: 166368779X

Title:: Proceedings, XXth congress

Scope:: IV, 226 Seiten

Year of publication:: 2004

Place of publication:: Istanbul

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 166368779X

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(35,B8)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Altan, M. Orhan

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: A WEB-BASED APPLICATION FOR REAL-TIME GIS O. Ozdilek, D. Z. Seker

Document type:: Multivolume work

Structure type:: Chapter

inbul 2004 S contents feremus e ormats S are based nt system a the server ts, and then International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B-YF. Istanbul 2004 2.3.1 Server Side Software: There are many possible ways when constructing a web-based map system, the main determiner for the project is the technologies that will be used. Investigating proper programming languages and web technologies, the options are narrowed down to scripting languages and widely used web data presentation systems in order to increase capability. The aim while selecting scripting languages for programming; protection of the open source nature of the project and relatively easily development cycle must be provided. The criteria used while selecting the programming language; e The programming interfaces must provide reaching web services, e The programming interfaces must provide database management, e Relatively rapid executive code must be used. The available programming languages such as PHP, Perl, Python, Tcl/Tk for similar works which support the mentioned rules above are widely used ones. Perl and Python seemed as good alternatives because of extensive library support and using advances of UNIX systems. But Perl had a cryptic syntax and Python is not built for managing web services. PHP is widely used general purpose scripting language that is especially suited for web development (PHP.net, 2004). PHP can be embedded to (X)HTML or XML. PHP is a tool for creating dynamic data- driven web-pages. As a result, PHP programming system has been selected for managing the data system (Listing 1). «html» <head> <title>Example</title> </head> <body> <?php echo "Hi, I'm a PHP script!"; >> </body> </html> Listing 1. PHP Script Example The presentation of data is also important in the project. The presentation system has to be; e Suitable for map presentation, e Provide interactivity (response to mouse events) and animations, e Suitable for open source development, e Support scripting, e Integrated with other web standards easily. SVG has been selected for this application because it fits the criteria stated above and the project needs the best filled criteria. After determining the main programming tools, a database system should be chosen that could provide an easy integration with PHP. The chosen database system must be compatible with open-source coding. The result is MySQL. The Apache httpd server was chosen, with similar reasons. Moreover T PHPmyAdmin, which is also open-sourced, used to reach MySQL database over web browser. SVG is a language for describing the two dimensional graphics in XML (Adobe.com, 2004). SVG allows three types of graphic objects: vector graphics shapes, images and text. Graphical objects can be grouped, styled by styling sheets, transformed and compositioned into the previously rendered objects. SVG drawings can be interactive or dynamic. Animations can be defined and triggered either declaratively or via scripting. Because of its compability and leveraging of the other web standards features like scripting can be done on XHTML and SVG elements simultaneously within the same page (Listing 2). <?xml version="1.0" encoding="ISO-8859- |"standalone-"no"?» <defs> <circle cx="150" cy="120" r="80"/> </defs> <title>SVG </title> <text x="20" y="30" style="fill: #000; font-size:24px">Element clipPath</text> «rect x="30" y="100" width="350" height="80" style="fill: #FFC; stroke: #00C; stroke-width: 1.5px"/> <g> </svg> Listing 2. Example for a SVG file 2.3.2 Client Side Software: A SVG compatible viewer should be installed at the client side. ; 2.3.3 Methodology: Server Side Client Side Web Browser With SVG Plugin Figure 3. Flowchart of the System The following elements must be demonstrated to develop the system: (Refer to Figure 3); The Data Upload&Management Component is programmed as to be responsible for exchanging and manipulating project data over internet. PHP is used for this component. The process is carried out by a web based interface generated by a component for project (Figure 4, Figure 5, and Figure 6). Component is developed in PHP scripting language that provides API for reaching MySQL database over internet. Database is designed with respect to GML data structure. This situation makes storing XML based data easy and flexible. Database management system is linked to the PHPMyAdmin web based software. PHPMyAdmin is an open source tool that is used for

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