Multi-dimensional Data Access minimal requirements

Patrick Dowler patrick.dowler at nrc-cnrc.gc.ca
Tue Mar 11 14:19:49 PDT 2014


This. Exactly this.

On 11/03/14 01:59 PM, Tom McGlynn wrote:
> So I request 1000 cutouts as circles with a radius of 5"
> and the appropriate centers.  I get back 1000 cutouts that are
> presumably rectangles (probably squares but maybe a pixel or two off).
>
> Seems pretty reasonable to me.  It would be much harder if I have to
> first calculate the bounding box in RA/Dec for the circle that I need,
> and it may also be less efficient, since the ACS images may not be
> nicely aligned with the coordinate system in which I specify my box.
> So I'd get back larger boxes than I actually needed -- a factor or two
> more area in the worst case I think.

-- 

Patrick Dowler
Canadian Astronomy Data Centre
National Research Council Canada
5071 West Saanich Road
Victoria, BC V9E 2E7

250-363-0044 (office) 250-363-0045 (fax)


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