Hi,
I'm using the river database 'wdb_rivers_l.b' downloaded from ftp://ftp.soest.hawaii.edu/pwessel/gshhs/gshhs_1.11.zip
.
If I do this:
> rivers_low <- Rgshhs("wdb_rivers_l.b")
I get a list of rivers as SpatialLines with
> bbox(rivers_low[[1]])
min max
r1 0.000278 359.99944
r2 -52.733333 74.41167
Fine.
But I need a xlim range of c(-180, 180). I could do it manually but I
read in ?Rgshhs that there's an argument 'shift' which, set to TRUE,
shifts longitudes > 180 degrees to below zero. But if I call:
> rivers_low <- Rgshhs("wdb_rivers_l.b", shift = TRUE)
I get the same bbox.
What am I doing wrong?
Thanks in advance and kind regards,
--Hans
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