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#' GMLCompoundCRS
#'
#' @docType class
#' @importFrom R6 R6Class
#' @export
#' @keywords ISO GML compound CRS
#' @return Object of \code{\link{R6Class}} for modelling an GMLCompoundCRS
#' @format \code{\link{R6Class}} object.
#'
#' @references
#' ISO 19136:2007 Geographic Information -- Geographic Markup Language.
#' http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=32554
#'
#' OGC Geography Markup Language. http://www.opengeospatial.org/standards/gml
#'
#' @author Emmanuel Blondel <emmanuel.blondel1@@gmail.com>
#'
GMLCompoundCRS <- R6Class("GMLCompoundCRS",
inherit = GMLAbstractCRS,
private = list(
xmlElement = "CompoundCRS",
xmlNamespacePrefix = "GML"
),
public = list(
#'@field componentReferenceSystem componentReferenceSystem [2..*]: instance of AbstractSingleCRS
componentReferenceSystem = list(),
#'@description Initializes object
#'@param xml object of class \link{XMLInternalNode-class}
#'@param defaults default values
#'@param id id
initialize = function(xml = NULL, defaults = list(), id = NULL){
super$initialize(xml = xml, defaults = defaults, id = id)
},
#'@description Adds component reference system
#'@param referenceSystem referenceSystem, object of class \link{GMLAbstractSingleCRS}
#'@return \code{TRUE} if added, \code{FALSE} otherwise
addComponentReferenceSystem = function(referenceSystem){
if(!inherits(referenceSystem, "GMLAbstractSingleCRS")){
stop("The argument should be a instance of class CRS")
}
return(self$addListElement("componentReferenceSystem", referenceSystem))
},
#'@description Deletes component reference system
#'@param referenceSystem referenceSystem, object of class \link{GMLAbstractSingleCRS}
#'@return \code{TRUE} if delete, \code{FALSE} otherwise
delComponentReferenceSystem = function(referenceSystem){
if(!inherits(referenceSystem, "GMLAbstractSingleCRS")){
stop("The argument should be a instance of class CRS")
}
return(self$delListElement("componentReferenceSystem", referenceSystem))
}
)
)
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