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##' Superclass containing functions and data relating to sets of
##' features in flat \code{\link{Outline}}s
##'
##' @description A FeatureSet contains information about features
##' located on \code{\link{Outline}}s. Each FeatureSet contains a
##' list of matrices, each of which has columns labelled \code{X}
##' and \code{Y} describing the cartesian coordinates of points on
##' the Outline, in the unscaled coordinate frame. Derived classes,
##' e.g. a \code{\link{CountSet}}, may have extra columns. Each matrix
##' in the list has an associated label and colour, which is used by
##' plotting functions.
##'
##' @author David Sterratt
##' @export
FeatureSet <- R6Class("FeatureSet",
inherit = FeatureSetCommon,
public = list(
##' @description Constructor
##' @param data List of matrices describing data. Each matrix
##' should have columns named \code{X} and \code{Y}
##' @param cols Named vector of colours for each data set. The name is
##' used as the ID (label) for the data set. The colours should be names
##' present in the output of the \code{\link{colors}} function
##' @param type String
initialize = function(data=NULL, cols=NULL, type=NULL) {
if (!is.null(data)) {
if (!is.list(data)) {
stop("data should be a list")
}
if (!all(sapply(data, function(d) (all(c("X", "Y") %in% colnames(d)))))) {
stop("data argument to FeatureSet needs columns marked X and Y")
}
self$data <- data
self$cols <- cols
if (!("default" %in% names(cols))) {
cols[["default"]] <- "orange"
}
self$type <- type
if (is.null(names(self$data)) & length(self$data) > 0) {
names(self$data) <- paste0(type, 1:length(self$data))
}
missing_cols <- setdiff(cols, colors())
if (length(missing_cols)) {
warning(paste("Colour(s)", missing_cols, "missing from", type,
names(cols)[which(missing_cols == cols)]))
}
}
}
)
)
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