tiles_functions: Tiles functions
In e-sensing/EOCubes: Earth Observation Data Cubes Management and Client

Description Usage Arguments Details Value Functions See Also Examples

These functions provide operations to work with tiles registered in cubes.

.verify_which(which, cube)

tiles_which(cube, prefix = NULL, geom = NULL)

list_tiles(cube)

.fetch_tiles(cube, which = NULL, cache = NULL, progress_bar = FALSE)

tiles_sfc(cube, which = NULL)

.tiles_to_sfc(cube, which = NULL)

`which`	A `logical` or `integer` vector indicating which tile to be fetched. If `NULL` (default) all tiles are fetched.
`cube`	A `EOCubes_cube` object.
`prefix`	A `character` vector containing tile's name prefixes to be filtered.
`geom`	A `sfc`, a `sf` object, or a `character` path to a shapefile to filter intersecting tiles.
`cache`	A `logical` or `NULL` to enable (`TRUE`), disable (`FALSE`), or proceed the default behavior of (`NULL`) the cache system.
`progress_bar`	A `logical` value indicating to show or not a progress bar while fetching tiles.

The function .verify_which is a internal function used to verify the consistency of which parameter of some tiles functions.

The function tiles_which requires sf package to compute intersection. It can be used in which parameter of functions cube_filter, stacks, tiles_which

Fetching tiles can be an expensive task. You can filter tiles that intersects your area of interest by providing which parameter.

The function cubes_sfc requires sf package.

The function tiles_to_sfc requires sf package.

Either a logical or integer vector.

A logical vector.

An EOCubes_tilelist object that lists all tiles from a cube.

An EOCubes_tiles object.

A sfc object from sf package.

.verify_which: Verifies if which parameter is valid for a given list of tiles.
tiles_which: Returns a logical vector indicating selected tiles that satisfies filter.
list_tiles: Lists all registered tiles in a cube.
.fetch_tiles: Fetches tiles in a cube.
tiles_sfc: Returns all tiles extents in a sfc object.
.tiles_to_sfc: Converts tiles extents to a sfc object.

remote, cube, cube_filter

x <- remote("localhost")
cub1 <- cube("MOD13Q1/006", x)
tiles_index <- tiles_which(cub1, "h13v10")   # select 'h13v10' tile

# required by sf package
if (require("tibble") && require("sf")) {

   tiles_sfc(cub1, which = tiles_index)
   file <- system.file("shape/example.shp", package = "EOCubes")
   tiles_index <- tiles_which(cub1, geom = file)   # select all tiles that intersect shapefile
   tiles_sfc(cub1, which = tiles_index)
}