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Overview of VO client applications

Overview of VO client applications. Thomas Boch CDS boch@astro.u-strasbg.fr. VO architecture. VO architecture. VO architecture. VO architecture. Consuming VO services. VO application ???. An application Supporting VO formats (VOTable, UCD, …)

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Overview of VO client applications

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  1. Overview of VO client applications Thomas Boch CDS boch@astro.u-strasbg.fr

  2. VO architecture

  3. VO architecture

  4. VO architecture

  5. VO architecture ConsumingVOservices

  6. VO application ??? • An application • Supporting VO formats (VOTable, UCD, …) • Capable of querying a registry to discover and locate services of interest • Capable of querying services conforming to DAL protocols (ConeSearch, SIAP, SSAP) • Able to interact with other VO applications

  7. Registry • Registries are set up and running • ESAVO registry • AstroGrid registry • Carnivore (Caltech) registry • STScI registry • … • Searchable • By humans • By machines

  8. ESAVO registry

  9. ESAVO registry ESAVO registry home page

  10. ESAVO registry

  11. ESAVO registry Search interface

  12. ESAVO registry

  13. ESAVO registry Search results for ‘CDFS’

  14. VOExplorer • AstroGrid development • Itunes-like interface allowing to • Browse and search available services • Filter incrementally on the basis of VOResource metadata • Use service of interest

  15. VOExplorer • AstroGrid development • Itunes-like interface allowing to • Browse and search available services • Filter incrementally on the basis of VOResource metadata • Use service of interest

  16. NVO DataScope • Query simultaneously different VO services

  17. NVO DataScope

  18. NVO DataScope Enter an object name/position on the sky + search radius

  19. NVO DataScope

  20. NVO DataScope List of matching resources

  21. NVO DataScope

  22. NVO DataScope Preview/access to data of interest

  23. Astrogrid DataScope

  24. Aladin ‘All-VO’

  25. Spectral tools • VOSpec (ESAC) • Splat-VO (StarLink) • Specview (STScI)

  26. VOSpec • Access to • SSAP services (spectra) • TSAP services (theoretical spectra) • SLAP services (spectral atomic lines) • Create SED from spectra coming from different providers • Handles units conversion • Black-body fitting, deredenning, gaussian fitting, etc

  27. VOSpec

  28. Splat-VO

  29. Catalogues tools • TOPCAT (M. Taylor) • VOPlot (VO-India) • VisIVO (INAF)

  30. TOPCAT • Interactive graphical viewer and editor for tabular data • Supports many tabular formats (VOTable in all flavours, FITS tables, ASCII, CSV, …) • Features : • access to catalogues (ConeSearch), images (SIAP), spectra (SSAP) services • conversion between tabular formats, 2D/3D scatter plots, density plots, spherical plot, selection of subsets, cross-match tables, creation of new columns, … • STILTS : command-line counterpart for batch operations

  31. TOPCAT

  32. VOPlot • 2D data plotter supporting VOTable catalogues • Lightweight • Can be used as an applet from a web page

  33. VOPlot

  34. VisIVO Grid based data: • Isosurfaces • Volume rendering Supported VO formats • VOTable • PLASTIC Point like data: • Pixels • Scalar quantities with colours • Scalar quantities with variable size and shape glyphs INAF, CINEA : visivo.cineca.it

  35. Aladin • Interactive sky atlas • Access and visualize astronomical images • Superimpose catalogues entries • Aim : visualizing and comparing multi-wavelength data • Access to • ConeSearch services • SIAP services • SSAP services • Local data manipulation (cross-match, filters, image convolution, …) • Remote processing services (S-Extractor)

  36. Aladin

  37. Making tools interoperate • PLASTIC protocol (http://plastic.sf.net/) • allows client-side VO tools to communicate • currently being revamped as SAMP (Simple Application messaging) in the IVOA frame

  38. PLASTIC usage example (1) • Expanding tools’ capabilities

  39. PLASTIC usage example (2) • Cross-selection of objects in different tools

  40. Applications IVOA WG • Applications Working Group charter • Forum for VO Apps announcement • Provide feedback on interop. standards implementation • Identify missing components for VO apps • http://www.ivoa.net/twiki/bin/view/IVOA/IvoaApplications

  41. Links (1) • Registries • ESAVO registry : http://esavo.esa.int/registry/ • AstroGrid : http://www.astrogrid.org/ • Carnivore registry : http://nvo.caltech.edu:8080/carnivore/ • STScI : http://nvo.stsci.edu/voregistry/index.aspx • VO Explorer : http://software.astrogrid.org/ • NVO DataScope : http://heasarc.gsfc.nasa.gov/vo/ • VOSpec : http://esavo.esac.esa.int/vospecapp • Splat-VO : http://star-www.dur.ac.uk/~pdraper/splat/splat-vo/ • Specview : http://www.stsci.edu/resources/software_hardware/specview

  42. Links (2) • TOPCAT : http://www.star.bris.ac.uk/~mbt/topcat/ • VOPlot : http://vo.iucaa.ernet.in/~voi/voplot.htm • VisIVO : http://visivo.cineca.it/ • Aladin : http://aladin.u-strasbg.fr/ • PLASTIC : http://plastic.sourceforge.net/ • IVOA Applications WG : http://www.ivoa.net/twiki/bin/view/IVOA/IvoaApplications • List of applications from IVOA Apps WG : http://www.ivoa.net/twiki/bin/view/IVOA/IvoaApplications#Links • List of tools from NVO web site : http://www.us-vo.org/projects/tools.cfm

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