[R-sig-Geo] spsample Error

[Agustin Lobo]

I'm using spsample() with a second SpatialLinesDataFrame
but now I'm geting an error. This is what I do:

fl2300 <-
readOGR(dsn="/media/Transcend/MONTSENY2008/MONTSENY_UAV2/flMatagalls300",layer="flMatagalls300")
> wpMata300 <- spsample(fl2300[1,],33,offset=0.0,type="regular")
Error in proj4string(x) :
   proj4string only works for class(es extending) Spatial

Nothing looks wrong with fl2300 (at least not different to other SPDFs for which
spsample() works fine):
> str(fl2)
Formal class 'SpatialLinesDataFrame' [package "sp"] with 4 slots
   ..@ data       :'data.frame':	2 obs. of  2 variables:
   .. ..$ Code   : int [1:2] 1 2
   .. ..$ Comment: Factor w/ 2 levels "CarrElBrull700",..: 2 1
   ..@ lines      :List of 2
   .. ..$ :Formal class 'Lines' [package "sp"] with 2 slots
   .. .. .. ..@ Lines:List of 1
   .. .. .. .. ..$ :Formal class 'Line' [package "sp"] with 1 slots
   .. .. .. .. .. .. ..@ coords: num [1:3, 1:2] 445816 449071 449071 4628083
4629045 ...
   .. .. .. ..@ ID   : chr "0"
   .. ..$ :Formal class 'Lines' [package "sp"] with 2 slots
   .. .. .. ..@ Lines:List of 1
   .. .. .. .. ..$ :Formal class 'Line' [package "sp"] with 1 slots
   .. .. .. .. .. .. ..@ coords: num [1:3, 1:2] 445983 444326 444326 4628196
4630060 ...
   .. .. .. ..@ ID   : chr "1"
   ..@ bbox       : num [1:2, 1:2] 444326 4628083 449071 4630060
   .. ..- attr(*, "dimnames")=List of 2
   .. .. ..$ : chr [1:2] "r1" "r2"
   .. .. ..$ : chr [1:2] "min" "max"
   ..@ proj4string:Formal class 'CRS' [package "sp"] with 1 slots
   .. .. ..@ projargs: chr " +proj=utm +zone=31 +ellps=intl +units=m +no_defs"

Is this a bug? Do I have anything wrong in this object?
Thanks

Agus
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