[R-sig-Geo] look for advice on handling 3D/4D trajectories in R

[Pedro C. Alvarez]

Thanks for the info. I will have a look to 'mkde' and 'sf'. The sf vignette is 
promising!!

Pedro

El Domingo, 6 de noviembre de 2016 09:09:50 Mathieu Basille escribió:
> Also very timely, Edzer Pebesma released his 'sf' package on CRAN just a
> couple of hours before your request. sf implements the Simple Features
> standard, which is precisely the one PostGIS relies on, and do propose 3D
> (XYZ) or 4D (XYZM) geometries in R.
> 
> It seems to me that the use of these features is still widely open in the
> sense that applications are not common yet... so it may or may not answer
> your needs, but should very much match PostGIS capabilities.
> 
> You may want to look at Edzer's announcement:
> 
> https://stat.ethz.ch/pipermail/r-sig-geo/2016-November/025082.html
> 
> (check notably the vignette)
> 
> Cheers,
> Mathieu.
> 
> Le 04/11/2016 à 17:47, Michael Treglia a écrit :
> > Hi Paedro,
> > 
> > Might want to look into the mkde package (
> > https://cran.rstudio.com/web/packages/mkde/index.html) - it's designed to
> > use 3d tracking data to estimate movement in 3 dimensions.
> > 
> > Hope that helps,
> > Mike
> > 
> > On Fri, Nov 4, 2016 at 1:09 PM, Pedro C. Alvarez <pedroc at eio.uva.es> 
wrote:
> >> Hi all,
> >> 
> >> I am interested in handling 3D (lat, long, altitude) or even 4D (3D+time)
> >> aircraft trajectories in R. I am new to GIS (although not to R), then, I
> >> have
> >> been searching through r-project, R-sig-geo, the web ... and I've found
> >> and
> >> concluded that sp classes and some avalaible packages like trip,
> >> trajectories,
> >> ... do not cover the kind of methods and operations that are avalaible
> >> for
> >> 2D
> >> trajectories through sp or rgeos (for example, intersections, distance,
> >> gArea,
> >> gBuffer, ...).
> >> 
> >> My question is: I am right with the above conclusion?
> >> 
> >> I have seen too that PostGIS has methods to deal with 3D (XYZ) or 4D
> >> (XYZM)
> >> records. Is it the only (opensource) option?
> >> 
> >> Any advice to start using the appropiate tools will be welcome!
> >> 
> >> Thanks in advance,
> >> Pedro.
> >> 
> >> 
> >> --
> >> 
> >> --
> >> -----------------------------------------------------
> >> -----------------------------------------------------
> >> 
> >>         Pedro César Alvarez Esteban
> >>         Dpto. de Estadística e Investigación Operativa
> >>         Facultad de Ciencias
> >>         Universidad de Valladolid
> >>         Paseo de Belén, 7
> >>         47011 Valladolid (SPAIN)
> >> 
> >> -----------------------------------------------------
> >> 
> >>         Tfo: +34 983 423930
> >>         Fax: +34 983 423013
> >>         E-mail: pedroc at eio.uva.es
> >> 
> >> _______________________________________________
> >> R-sig-Geo mailing list
> >> R-sig-Geo at r-project.org
> >> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> >> 
> > 	[[alternative HTML version deleted]]
> > 
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-- 

--
-----------------------------------------------------
-----------------------------------------------------
        Pedro César Alvarez Esteban
        Dpto. de Estadística e Investigación Operativa
        Facultad de Ciencias
        Universidad de Valladolid
        Paseo de Belén, 7
        47011 Valladolid (SPAIN)
-----------------------------------------------------
        Tfo: +34 983 423930
        Fax: +34 983 423013
        E-mail: pedroc at eio.uva.es