romsboundary {angstroms} | R Documentation |
Boundary polygon from raster of coordinates.
Description
Create a boundary polygon by tracking around coordinates stored in a RasterStack.
Usage
romsboundary(cds)
Arguments
cds |
two-layer Raster |
Details
The first layer in the stack is treated as the X coordinate, second as Y.
Examples
ice_grid_boundary <- romsboundary(ice_coords)
plot(antarctica)
## does not make sense in this space
plot(ice_grid_boundary, add = TRUE, border = "grey")
## ok in this one
#library(rgdal)
# proj4string(ice_grid_boundary) <- CRS("+init=epsg:4326")
# pweird <- "+proj=laea +lon_0=147 +lat_0=-42 +ellps=WGS84"
# laea_world <- spTransform(antarctica, pweird)
# plot(extent(laea_world) + 8e6, type = "n", asp = 1)
# plot(laea_world, add = TRUE)
# plot(spTransform(ice_grid_boundary, pweird), add = TRUE, border = "darkgrey")
[Package angstroms version 0.0.1 Index]