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#' ISOBaseDecimal
#'
#' @docType class
#' @importFrom R6 R6Class
#' @export
#' @keywords ISO decimal
#' @return Object of \code{\link{R6Class}} for modelling an ISO Decimal
#' @format \code{\link{R6Class}} object.
#' @note Class used by geometa internal XML decoder/encoder
#'
#' @references
#' ISO/TS 19103:2005 Geographic information -- Conceptual schema language
#'
#' @author Emmanuel Blondel <emmanuel.blondel1@@gmail.com>
#'
ISOBaseDecimal <- R6Class("ISOBaseDecimal",
inherit = ISOAbstractObject,
private = list(
xmlElement = "Decimal",
xmlNamespacePrefix = "GCO",
#decimal places
decimalplaces = function(x) {
if (abs(x - round(x)) > .Machine$double.eps^0.5) {
nchar(strsplit(sub('0+$', '', as.character(x)), ".", fixed = TRUE)[[1]][[2]])
} else {
return(0)
}
}
),
public = list(
#'@field value value
value = NA,
#'@description Initializes a base decimal object
#'@param xml object of class \link{XMLInternalNode-class}
#'@param value value
initialize = function(xml = NULL, value){
super$initialize(xml = xml)
if(is.null(xml)){
if(!is(value, "double")){
value <- as.double(value)
}
if(private$decimalplaces(value)==0){
value <- sprintf("%.2f", value)
}
self$value = value
}
}
)
)
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