Agustin Lobo wrote:
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
Hi,
What is the information traceback() provides?
cheers,
Paul
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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--
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
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http://intamap.geo.uu.nl/~paul
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