As some of you may know, I've been working pretty heavily on spatial stuff
lately. One of the things that has bothered me for a while is the use of the
terminology: cartesian tiers. The thing is, I can't find any reference to such
a thing in any place other than Local Lucene and Patrick's
I also know the name Quad Tree or Trie, but not sure, he it is really the same.
Uwe
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Betreff: [spatial] Cartesian Tiers nomenclature
I would extremely prefer a common well know name instead of Cartensian
tiers. While the API is still in flux changing the name is not that
much of a deal either. Either grid or tiles is fine for me though
while I would prefer the most common of the two - grid seems to be the
better choice though.
On Mon, Dec 28, 2009 at 11:31:14AM -0500, Grant Ingersoll wrote:
As some of you may know, I've been working pretty heavily on spatial stuff
lately.
Been watching from a distance, glad to see it. :)
One of the things that has bothered me for a while is the use of the
terminology: cartesian
On Dec 28, 2009, at 1:00 PM, Ryan McKinley wrote:
Do you think it is worth a name change? This is about to get baked into
Solr and I would really prefer we choose names that the rest of the world
seems to understand.
If it hasn't been baked in yet, then +1. I do agree that it's
Grant Ingersoll wrote:
On Dec 28, 2009, at 1:00 PM, Ryan McKinley wrote:
Do you think it is worth a name change? This is about to get baked into
Solr and I would really prefer we choose names that the rest of the world
seems to understand.
If it hasn't been baked in yet, then +1. I do agree
Most of the atmospheric/climate/earth scientists that I work with refer to
these tiers as grid boxes.
I think you¹ll find different answers though, depending on who you ask. The
scientific community is a bit different that GIS/decision support folks...
Chris
On 12/28/09 9:49 AM, Ryan McKinley
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
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
-
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 gsing...@apache.orgwrote:
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
Hmm, depends, tiles indicate to me a direct correlation between the id and a
map tile, which will depend upon using the right projection
with the cartesian plotter
On Mon, Dec 28, 2009 at 2:56 PM, Grant Ingersoll gsing...@apache.orgwrote:
On Dec 28, 2009, at 4:19 PM, patrick o'leary wrote:
So trying no to drag this out, the most frequent generic term used in GIS
software is SRID
http://en.wikipedia.org/wiki/SRID
Again this provides just a basic nomenclature for the high level element,
somewhat the blackbird of objects rather than the defining the magpie (sorry
for the CS 101
Hi Patrick,
Interesting. It seems like there is a precedent already in the Local Lucene
and Local SOLR packages that define CartesianTier as lingua franca.
Like I said in an earlier email it depends on who you talk to regarding the
preference of what to call these Tiles/Grids/Tiers, etc., and
Ah the language of math is the ultimate lingua franca -
Nice !
When you look at the coordinates entity from KML, ask why are the lat /
longs reversed to long/ lat?
Answer because the folks working on the display thought in terms of *display
not GIS*, the point is over Y degrees of longitude and
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