#' Write polyref file
#'
#' Write a polyref file to a text file ready for loading in ALMaSS.
#'
#' @param Table data.frame or data.table An attribute table
#' @param PathToFile character The path to the where the file is
#' written (including the name and extension of the file, usually .txt)
#' @param Headers logical Should the output file include headers?
#' @param Type character Write poly- or farm-ref file?
#' @return A tab separated text file formatted according to the requirements for a polygon reference file for ALMaSS.
#' @export
WritePolyref = function(Table, PathToFile, Headers = TRUE, Type = 'poly'){
Type = tolower(Type)
if(Type != 'poly' & Type != 'farm')
{
stop('Oops! Looks like you are asking for stuff you cant get...\n')
}
filecon = file(PathToFile, open = 'wt')
cat(paste(nrow(Table)), '\n', file = filecon)
ScipenDefault = getOption('scipen')
options(scipen = 99) # To avoid scientific notation in the resulting file
if(Type == 'poly')
{
Table[,`:=`(Openness = -1, CentroidX = -1, CentroidY = -1)]
utils::write.table(Table, file = filecon, sep = '\t', append = TRUE, row.names = FALSE, col.names = Headers, quote = FALSE)
}
if(Type == 'farm')
{
utils::write.table(Table, file = filecon, sep = '\t', append = TRUE, row.names = FALSE, col.names = FALSE, quote = FALSE)
}
close(filecon)
options(scipen = ScipenDefault) # Reset scipen option to default
}
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