[R-sig-Geo] R 3.0.0 and spatial classes

[Edzer Pebesma]

Hi Barry, that sounds like a great project. As of your (only) example, I
already see, after loading package raster:

> showMethods(proj4string)
Function: proj4string (package sp)
obj="Raster"
obj="Spatial"

Loading Tcl/Tk interface ... done
> getMethod(proj4string, "Raster")
Method Definition:

function (obj)
{
    projection(obj)
}
<environment: namespace:raster>

Signatures:
        obj
target  "Raster"
defined "Raster"

or do you suggest that sp should adopt the use of projection() as well?

I'm looking forward to many reactions too, but will draw my conclusions
if there aren't any.

On 12/16/2012 04:13 PM, Barry Rowlingson wrote:
> There's been an announcement that the next version of R will be called
> 3.0.0. Although not a massive change (compared to Python 2.x and 3.x,
> or Perl 4 to Perl 5), it might be a good opportunity to revise all the
> spatial classes in order to:
> 
>  * clear out any cruft
>  * remove any inconsistencies
>  * add some new functionality
>  * unify across spatial packages
> 
> The first thing that springs to mind, for example, is getting sp and
> raster to use the same functions for coordinate reference system
> processing. Doubtless there are other opprtunities for synergy...
> 
>  Yes, this may well break existing code, but if R is going to jump
> from 2 to 3 then that will break existing code too.
> 
>  Your ponderances, please...
> 
> Barry
> 
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-- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251
8333081, Fax: +49 251 8339763  http://ifgi.uni-muenster.de
http://www.52north.org/geostatistics      e.pebesma at wwu.de