brick.decimal.formatter: Imports a brick of raster ascii maps into a 'brick' object
In geotopbricks: An R Plug-in for the Distributed Hydrological Model GEOtop

Description Usage Arguments Value Examples

View source: R/brick.decimal.formatter.R

Imports a brick of raster ascii maps into a 'brick' object

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brick.decimal.formatter(file = NULL, file_prefix, formatter = "%04d",
  file_extension = ".asc", nlayers = 10, use.read.raster.from.url = FALSE,
  crs = NULL, start.from.zero = FALSE)

`file`	fileneme of the 'brick' files containing the decimal formatter. It is `NULL` by default, otherwise it replaces `file_suffix`, `formatter` and `file_extension`.
`file_prefix`	character string suffix name of the 'brick' files.
`formatter`	string value. Default is `"%04d"` .
`file_extension`	strinf value. Default is `".asc"`
`nlayers`	number of layers
`use.read.raster.from.url`	logical value. Default is `FALSE`. (this is recommended in this function). If `TRUE` the RasterLayer are read with `read.raster.from.url`, istead of `raster` (otherwise). It is recomended in case the files whose paths are contained in `x` are remote and are 'http' addresses. In this cases the stand-alone method `raster(x)` does not always work and `use.read.raster.from.url` is necessary.
`crs`	coordinate system see `RasterBrick-class`,`brick`, Default is `NULL`.
`start.from.zero`	logical value. Default is `FALSE`. If `TRUE` the formatter starts from `0000`, otherwise it starts from `0001`.

the output is returned as a RasterBrick-class object

library(geotopbricks)
library(raster)
file <- system.file("doc/examples/snowthickness",package="geotopbricks")
file <- paste(file,"SnowThickness0000L%04d.asc",sep="/")
# nlayers=15
nlayers <- 6 ## Only 6 layers are read to minimize the elapsed time of the example!!
b <- brick.decimal.formatter(file=file,nlayers=nlayers)
nlayers(b)
names(b)