Re: [R-sig-Geo] agenda for R's Geo capabilities?

2007-03-18 Thread Tim Keitt
I agree GEOS support would be welcome. I'd be happy to help out if anyone takes this on. I've been thinking of a possibly quicker (devel time) solution lately since I've been using PostGIS a lot. One could have a postgis package that copies 'sp' object into postgis and then provides postgis functi

Re: [R-sig-Geo] agenda for R's Geo capabilities?

2007-03-16 Thread Gabor Grothendieck
In my opinion the first item on the agenda should be to get good documentation in place including many examples. On 3/16/07, Edzer J. Pebesma <[EMAIL PROTECTED]> wrote: > Although I'm interested many of the issues below, and also feel the > attraction of the develop-it-ourself, my personal agenda

Re: [R-sig-Geo] agenda for R's Geo capabilities?

2007-03-16 Thread Edzer J. Pebesma
Although I'm interested many of the issues below, and also feel the attraction of the develop-it-ourself, my personal agenda is a bit more modest. Once we start with GEOS support (an idea mentioned every 6 months on this list), the next thing we need for dealing with huge or massive data sets i

Re: [R-sig-Geo] agenda for R's Geo capabilities?

2007-03-16 Thread Tim Keitt
On 3/16/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > My OSGeo summer of code idea is to link the BGL to postgis. I wasn't > > originally thinking about topology per se, but it would achieve much the > > same thing. > > > I've thought a bit about this project, too, as it butts up against

Re: [R-sig-Geo] agenda for R's Geo capabilities?

2007-03-16 Thread elw
> My OSGeo summer of code idea is to link the BGL to postgis. I wasn't > originally thinking about topology per se, but it would achieve much the > same thing. I've thought a bit about this project, too, as it butts up against some of my own work. My experience with graph libraries has not

Re: [R-sig-Geo] agenda for R's Geo capabilities?

2007-03-16 Thread Roger Bivand
On Fri, 16 Mar 2007 [EMAIL PROTECTED] wrote: > The thread below and many others in R-sig-Geo raise questions about > future directions. In reinventing GIS there are a whole list of > capabilities and functions that would be helpful. Some that I have > noticed include, > > Topological representa

Re: [R-sig-Geo] agenda for R's Geo capabilities?

2007-03-16 Thread Tim Keitt
Denis, I was just about to reply to Nicholas that my ideal solution would be to build a graph data structure linking adjacent elements and find the the hull that way -- I think you saw the solution before I did. (I'm starting to grok that all of this is already well known in the vector GIS world w

[R-sig-Geo] agenda for R's Geo capabilities?

2007-03-16 Thread White . Denis
The thread below and many others in R-sig-Geo raise questions about future directions. In reinventing GIS there are a whole list of capabilities and functions that would be helpful. Some that I have noticed include, Topological representation to enable Planar enforcement of boundary integr