Capability extension for describing whole sky maps

[Roy Williams]

Pierre

Here is another version. I think it is advocating much the same sort of 
thing.

Hyperatlas: A New Framework for Image Federation
Authors: R. D. Williams, S. G. Djorgovski, M. T. Feldmann, J. C. Jacob
http://arxiv.org/abs/astro-ph/0312195

Cheers
Roy


Pierre Fernique wrote:
>
> Dear registry members,
>
> As I presented Tuesday 18 May during the App session at Victoria 
> interop, I was suggesting an extension of the "capability" section for 
> describing whole sky maps/surveys (for those who do not follow this 
> talk, here the pdf - 
> http://www.ivoa.net/internal/IVOA/InterOpMay2010Applications/AladindemonstrationInteropVictoria2010.pdf).
> Do you think that it is a good idea. And if yes, may you help me for 
> describing it properly in the schema of the registry.
>
> Here is my draft :
>
> <capability xsi:type= "SimpleAllSkyAccess">
> <interface type="HEALPIXmap">
> <accessURL use="base">http://..</accessURL>
> <HEALPix>
> <frame>Gal</frame>
> <tileFormat>FITS</tileFormat>
> <treeDepth>12</treeDepth>
> </HEALPix>
> </interface>
> …
> </capability>
>
> type : HEALPIXmap, HTMmap,... = sky tessellation method
> frame : GAL, ECL, EQU = tessellation reference frame
> titleFormat : FITS, PNG, JPG .... = image format for individual tile
> treeDepth: number = hierarchical depth (in Healpix = Norder, or 
> log2(NSIDE))
>
> This kind of "SimpleAllSkyAccess" resource may be queried just by tile 
> ID as parameter. For Healpix it is a couple : Norder/npixNumber. For 
> HTM it will be the triangle ID...
>
> http://base.adresse..cgi?tile=ID
>
> With this very simple interface, any body should be able to build a 
> client for displaying this kind of resources.
>
> Thanks
> Pierre Fernique
>

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