Format zoo

[mdsumner]

Kml, gml, pbf, all the packages, imos, movebank, etc, ncei:

• http://cfconventions.org/Data/cf-conventions/cf-conventions-1.7/build/ch09.html
• https://www.nodc.noaa.gov/data/formats/netcdf/v2.0/index.html

[mdsumner]

beginnings of trajectories support

trip.Track <- function(x, id = "1") {
  utc <- (attr(x@time, "index") + ISOdatetime(1970, 1, 1, 0, 0, 0, tz = "UTC"))[x@time]
  d <- cbind(data.frame(time = utc, id = id), x@data)
  trip(sp::SpatialPointsDataFrame(x@sp, d), c("time", "id"))
}

trip.Tracks <- function(x) {
  ids <- rownames(x@tracksData)
  trips <- lapply(seq_along(ids), function(i) trip.Track(x@tracks[[i]], i))
  trip(do.call(rbind, trips), getTORnames(trips[[1]]))
}

[mdsumner]

see #29