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WP8

WP8. Usage of Flex in the astronomical frame. Thomas Boch Cédric Capoulun. Flex ?. RIA (Rich Internet Application) framework developed by Adobe “Flash programming for programmers” Development ActionScript MXML (for GUI description) Execution Relies on Flash Player. Flex pros.

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WP8

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  1. WP8 Usage of Flex in the astronomical frame Thomas Boch Cédric Capoulun T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  2. Flex ? • RIA (Rich Internet Application) framework developed by Adobe • “Flash programming for programmers” • Development • ActionScript • MXML (for GUI description) • Execution • Relies on Flash Player T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  3. Flex pros • Flash Player everywhere (Flash Player 9 installed on 94% machines) • Fast startup time (wrt. Java applets) • High level of interactivity • Easy learning curve for the developer T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  4. Flex cons • Installation (of Flash Player) is compulsory (wrt. AJAX RIA) • Can be painful, especially on Linux systems and/or with non-savvy users • Breaks the browser logics • Back/forward button • Print T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  5. SimPlay (1/2) • SimPlay (Simbad disPlay) : a simple interactive viewer for Simbad objects • Starting point : replace the Simbad clickable map • Example: http://simbad.u-strasbg.fr/simbad/sim-id?Ident=ngc7331&radius.unit=arcmin&Radius=2#lab_plot T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  6. SimPlay (2/2) • Feature requirements: • Lightweight viewer • From an object name/position: load Simbad objects around this object on top of a DSS image • Display/hide sources according to their object type • Zoom/unzoom • Display info of a selected source • Localization T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  7. target SimPlay CGI Aladin script PNG+VOTable URLs PNG+VOTable PNG image +VOTable with x,y source positions Cache SimPlay architecture Browser CGI server Server-side Aladin T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  8. SimPlay demo • http://cdsweb.u-strasbg.fr/~boch/SimPlay/ T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  9. SimPlay offline version • Predefined list of targets • Application packaged with: • Flash Player • Image+VOTable data (corresponding to the predefined targets) • Images chosen from HST and ESO Press Releases • Astrometry retrieved through astrometry.net or manually in Aladin • Aimed at Outreach public (WP5) T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

  10. Other development • Nomenclature dictionary revamped in Flex: http://cdsweb.u-strasbg.fr/Dic9/ T. Boch - Euro-VO 3rd Tech Forum - Strasbourg - 16-18 March 2009

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