Displaying 2 results from an estimated 2 matches for "isobath".
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iso_path
2011 Nov 02
0
mapping bathymetries and species abundances
...sh abundance in the Grand Banks. I have tried several approaches to
plot the bathymetry in my study area:
1) download the data from http://topex.ucsd.edu/cgi-bin/get_data.cgi
(42N46N313W307W)
To start with, the map I get is blank between lon -52W -53W.
Besides, it seems that the shallower isobath is 500 m. Or maybe I am
wrong here?
2) import a shapefile with the bathymetry, but I get the following error:
test <- read.shapefile("C:/data")
Error in seq.default(1, (num.points * 2), by = 2) :
wrong sign in 'by' argument
3) use a Rdata version of...
2005 Jul 16
1
PBSmapping and shapefiles
Hi,
Is there a way, preferably with R, to read shapefiles and transform
them in a format that I could then use with package PBSmapping?
I have been able to read such files into R with maptools' read.shape
and plot it with plot.Map, but I'd like to bring the data to
PBSmapping and plot from there. I also looked at the package
shapefile, but it does not seem to do what I want