RE: [Flightgear-devel] Global data positional lookup

[Norman V. <nh...@ca...>]

Christian Mayer writes:
>
> Mathias Fr=F6hlich schrieb:
> > On Sunday 19 February 2006 19:44, Christian Mayer wrote:
> >> As my last post to this topic was probably a bit cryptic for some I'=
ve
> >> looked in the net a bit and have found:
> > Hehe, not really cryptic.
> > Rather interresting!
>
> The Code / Ideas I had so far was mainly working on a unit square or a
> unit cube. But I soon came to the conclusion that that wasn't optimal
> for mapping spherical coordinates as it doesn't care about the "seams".
> So thinking and searching for a better solution I came up with the link
> above. This could help us answer all the locality questions very fast
> with only very few code.

hmm

IIRC I have been mentioning  http://www.sdss.jhu.edu/htm/index.html

every time these kind of questions arise for years now  :-)

Cheers

Norman