Hi Jiri, What kind of queries would you like to run on this data? Can you give me some examples? Cheers, Kostsi On 03/16/2015 06:04 PM, Jiří Nádvorník wrote:
Hi All,
I have spherical coordinates (right ascension, declination) and I’d like to iterate over areas in this 2-dimensional space. Easiest that comes to mind is just create a grid of squares (say 5 arcsecs wide) and iterate over them.
Is it easier to do this in MonetDB with just spherical coordinates (some kind of spherical index), or do I have to convert them to x,y,z coordinates and create the grid in 3D?
Thank you for your insight.
Jiri Nadvornik
Astronomical Institute AV CR
Stellar department
Czech Republic
nadvornik.ji@gmail.com <mailto:nadvornik.ji@gmail.com>
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