[R-sig-Geo] Square vs. honeycomb raster grids

[Rafael Pereira]

Melanie,

if you're also interested, this paper brings a good summary of the pros and
cons of three regular tessellations: hexagons, squares and triangles.

http://www.sciencedirect.com/science/article/pii/S0304380007001949

best wishes,

Rafael H M Pereira




On Fri, Sep 1, 2017 at 11:42 AM, Bacou, Melanie <mel at mbacou.com> wrote:

> On 09/01/2017 03:53 AM, Roger Bivand wrote:
>
> On Fri, 1 Sep 2017, Bacou, Melanie wrote:
>
> I am wondering if current R raster operations (e.g. `extract()`,
> `resample()`, distance(), etc.) can be modified to work with honeycomb
> (hexagonal) grids instead of simple square grids? This is driven by e.g.
> work at Uber https://www.slideshare.net/stonse/ml-and-data-science-at-
> uber-gitpro-talk-2
> 017, and other articles http://strimas.com/spatial/hexagonal-grids/.
>
> I'm being asked to evaluate the pros/cons of using different
> tessellations,
> and wondering what's the extent of R's support for non square grids.
>
>
> Please also consider taking this up with:
>
> https://github.com/r-spatial/stars
>
> where it is very relevant. See also the dggridR package:
>
> https://cran.r-project.org/web/packages/dggridR/index.html
>
> Please report back on this - it deserves to be advanced actively.
>
> Roger
>
>
> Roger, thanks did that. Reviewing Richard Barnes' package now.
> --Mel.
>
>
> Many thanks, --Mel.
>
>
>
>
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