as_array: Convert a data cube to an in-memory R array

Description Usage Arguments Value Note Examples

View source: R/coerce.R

Description

Convert a data cube to an in-memory R array

Usage

1

Arguments

x

data cube

Value

Four dimensional array with dimensions band, t, y, x

Note

Depending on the data cube size, this function may require substantial amounts of main memory, i.e. it makes sense for small data cubes only.

Examples

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# create image collection from example Landsat data only 
# if not already done in other examples
if (!file.exists(file.path(tempdir(), "L8.db"))) {
  L8_files <- list.files(system.file("L8NY18", package = "gdalcubes"),
                         ".TIF", recursive = TRUE, full.names = TRUE)
  create_image_collection(L8_files, "L8_L1TP", file.path(tempdir(), "L8.db")) 
}

L8.col = image_collection(file.path(tempdir(), "L8.db"))
v = cube_view(extent=list(left=388941.2, right=766552.4, 
              bottom=4345299, top=4744931, t0="2018-04", t1="2018-05"),
              srs="EPSG:32618", nx = 100, ny=100, dt="P1M")
as_array(select_bands(raster_cube(L8.col, v), c("B04", "B05")))

gdalcubes documentation built on Oct. 28, 2021, 5:06 p.m.