[postgis-users] hexagonal grid

[Randall, Eric]

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net]On Behalf Of Brent
Wood
Sent: Thursday, May 29, 2008 11:43 AM
To: PostGIS Users Discussion; Randall at eriecountygov.org
Subject: Re: [postgis-users] hexagonal grid



> On Thu, May 29, 2008 at 7:08 AM, Randall, Eric <ERandall at eriecountygov.org>
wrote:
> > Has anyone created a method for generating a hexagonal grid over a polygon
> envelope using postgis? Thought I'd ask before setting out.  Thanks.

Hi Eric

I haven't specifically done this in PostGIS, but have briefly looked into
something similar with a colleague who uses R extensively, and was looking at
cellular automata modelling over a hexagonal grid. He was using such a dataset
in R, & there were a few ways this could be transferred to PostGIS, including
the R:gdal package, or a dump/parse/reformat/import script.

Cheers,

   Brent Wood
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Brent,

I've heard of the hexbin() function/package in splus/R that does this.
Is that what you were using? I'm hoping to do something in PostGIS itself.  

Eric