vapour_read_raster_block: Read or write raster block

In vapour: Access to the 'Geospatial Data Abstraction Library' ('GDAL')

Read or write raster block

Description

Read a 'block' from raster.

Usage

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

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
nara	if 'TRUE' return in nativeRaster format

Value

a list with a vector of data from the band read

Examples

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

vapour documentation built on June 22, 2024, 10:01 a.m.