rename_bands: Rename bands of a data cube

In gdalcubes: Earth Observation Data Cubes from Satellite Image Collections

Rename bands of a data cube

Description

Create a proxy data cube, which renames specific bands of a data cube.

Usage

rename_bands(cube, ...)

Arguments

cube	source data cube
...	named arguments with bands that will be renamed, see Details

Details

The result data cube always contains the same number of bands. No subsetting is done if only names for some of the bands are provided. In this case, only provided bands are renamed whereas other bands keep their original name. Variable arguments must be named by the old band name and the new names must be provided as simple character values (see example).

Value

proxy data cube object

Note

This function returns a proxy object, i.e., it will not start any computations besides deriving the shape of the result.

Examples

# 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"), quiet = TRUE) 
}

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="2018-07"),
              srs="EPSG:32618", nx = 497, ny=526, dt="P1M")
L8.cube = raster_cube(L8.col, v) 
L8.rgb = select_bands(L8.cube, c("B02", "B03", "B04"))
L8.rgb
L8.rgb = rename_bands(L8.cube, B02 = "blue", B03 = "green", B04 = "red")
L8.rgb

gdalcubes documentation built on May 29, 2024, 5:11 a.m.