terra (version 1.8-80)

vrt: Virtual Raster Dataset

Description

Create a Virtual Raster Dataset (VRT) from a collection of file-based raster datasets (tiles). See gdalbuildvrt for details.

Usage

# S4 method for character
vrt(x, filename="", options=NULL, overwrite=FALSE, set_names=FALSE, return_filename=FALSE)
# S4 method for SpatRasterCollection
vrt(x, filename="", options=NULL, overwrite=FALSE, return_filename=FALSE)

Value

SpatRaster

See Also

makeTiles to create tiles; makeVRT to create a .vrt file for a binary raster file that does not have a header file. vrt_tiles to get the filenames of the tiles in a VRT.

Examples

r <- rast(ncols=100, nrows=100)
values(r) <- 1:ncell(r)
x <- rast(ncols=2, nrows=2)
filename <- paste0(tempfile(), "_.tif")
ff <- makeTiles(r, x, filename)
ff

#vrtfile <- paste0(tempfile(), ".vrt")
#v <- vrt(ff, vrtfile)


## output in lower resolution
#vrtfile <- paste0(tempfile(), ".vrt")
#v <- vrt(ff, vrtfile, options = c("-tr", 5, 5))
#head(readLines(vrtfile))
#v