lucene-general mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "patrick o'leary" <pj...@pjaol.com>
Subject Re: [spatial] Cartesian "Tiers" nomenclature
Date Mon, 28 Dec 2009 21:19:21 GMT
Hmm, but when you say grid, to me that's just a bunch of regularly spaced
lines..

On Mon, Dec 28, 2009 at 1:16 PM, Grant Ingersoll <gsingers@apache.org>wrote:

>
> On Dec 28, 2009, at 3:51 PM, patrick o'leary wrote:
>
> > So Grant here's the deal behind the name.
> > Cartesian because it's a simple x.y coordinate system
> > Tier because there are multiple tiers, levels of resolution.
> >
> > If you look at it closer:
> > - To programmers there's a quadtree implementation
> > - To web users who use maps these are grids / tiles.
> > - To GIS experts this is a form of multi-resolution raster-ing.
> > - To astrophysicists these are tiers.
> > - To the MS folks I've talked to they have quad something or other.
> > - To math folks Cartesian levels makes sense.
> >
> > Can't make all the people happy all the time,
>
> Right, but as far as I can tell (and I've only done, say an hour of
> research), I can't find anyone who calls them Cartesian Tiers other than us.
>
> Personally, I think web users are the largest group (after all, aren't we
> all web users?) out there and therefore will be the most familiar with
> either grid or tile.  FWIW, I have tentatively called the Solr FieldType to
> support this "SpatialTileField" as in it represents a tile in the spatial
> sense.  I'd be fine with SpatialGridField as well (GridField seems a bit too
> generic).

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message