Read or write raster block — vapour_read_raster

Read a 'block' from raster.

vapour_read_raster_block(
  dsource,
  offset,
  dimension,
  band = 1L,
  band_output_type = "",
  unscale = TRUE
)

Arguments

dsource: file name to read from, or write to
offset: position x,y to start writing (0-based, y-top)
dimension: window size to read from, or write to
band: which band to read (1-based)
band_output_type: numeric type of band to apply (else the native type if '') can be one of 'Byte', 'Int32', or 'Float64'
unscale: default is TRUE so native values will be converted by offset and scale to floating point

a list with a vector of data from the band read

f <- system.file("extdata", "sst.tif", package = "vapour")
v <- vapour_read_raster_block(f, c(0L, 0L), dimension = c(2L, 3L), band = 1L)