R/mosaic.R
st_mosaic.Rd
build mosaic (composite) of several spatially disjoint stars objects
st_mosaic(.x, ...) # S3 method for stars st_mosaic( .x, ..., dst = tempfile(fileext = file_ext), options = c("-vrtnodata", "-9999", "-srcnodata", "nan"), file_ext = ".tif" ) # S3 method for character st_mosaic( .x, ..., dst = tempfile(fileext = file_ext), options = c("-vrtnodata", "-9999"), file_ext = ".tif" ) # S3 method for stars_proxy st_mosaic( .x, ..., dst = tempfile(fileext = file_ext), options = c("-vrtnodata", "-9999"), file_ext = ".tif" )
.x | object of class stars, or character vector with input dataset names |
---|---|
... | further input stars objects |
dst | character; destination file name |
options | character; options to the gdalbuildvrt command |
file_ext | character; file extension, determining the format used to write to (".tif" implies GeoTIFF) |
the stars method returns a stars object with the composite of the input; the character
method returns the file name of the file with the mosaic; see also the GDAL documentation of gdalbuildvrt
the gdal function buildvrt builds a mosaic of input images; these imput images can be multi-band, but not higher-dimensional data cubes or stars objects with multiple attributes
uses gdal_utils to internally call buildvrt
; no executables external to R are called.
x = read_stars(system.file("tif/L7_ETMs.tif", package = "stars")) x1 = x[,100:200,100:200,] x2 = x[,150:300,150:300,] plot(st_mosaic(x1, x2))