siamesedream_palette <- c(
"#2f1f16",
"#cd8e40",
"#a34d2c",
"#f4efec",
"#e4ca97",
"#9b8984",
"#cea585",
"#846c74",
"#6c8436",
"#c9bfbd"
)
#' @title siamesedream palette
#' @description siamesedream palette
#' @inheritDotParams ggplot2::discrete_scale
#' @param n number of colors
#' @param type discrete or continuous
#' @param reverse reverse order, Default: FALSE
#' @rdname siamesedream_pal
#' @examples
#' library(scales)
#' show_col(siamesedream_pal()(10))
#' @export
#' @importFrom scales manual_pal
#' @importFrom glue glue
#' @importFrom grDevices colorRampPalette
siamesedream_pal <- function(n, type = c("discrete", "continuous"),
reverse = FALSE){
siamesedream <- siamesedream_palette
if (reverse == TRUE) {
siamesedream <- rev(siamesedream)
}
if (missing(n)) {
n <- length(siamesedream)
}
type <- match.arg(type)
if (type == "discrete" && n > length(siamesedream)) {
stop(glue::glue("Palette does not have {n} colors, maximum is {length(siamesedream)}!"))
}
siamesedream <- switch(type,
continuous = grDevices::colorRampPalette(siamesedream)(n),
discrete = siamesedream[1:n])
siamesedream <- scales::manual_pal(siamesedream)
return(siamesedream)
}
#' @title scale_color_siamesedream
#' @rdname siamesedream_pal
#' @export
#' @examples
#'
#' library(ggplot2)
#' ggplot(airquality, aes(x = Day, y = Temp,
#' group = as.factor(Month), color = as.factor(Month))) +
#' geom_point(size = 2.5) +
#' scale_color_siamesedream()
#' @importFrom ggplot2 discrete_scale scale_color_gradientn
scale_color_siamesedream <- function(n, type = "discrete",
reverse = FALSE, ...){
if (type == "discrete") {
ggplot2::discrete_scale("color", "siamesedream",
siamesedream_pal(n = n, type = type,
reverse = reverse), ...)
} else {
ggplot2::scale_color_gradientn(colors = siamesedream_pal(n = n, type = type,
reverse = reverse)(256))
}
}
#' @title scale_colour_siamesedream
#' @rdname siamesedream_pal
#' @export
#' @examples
#'
#' ggplot(airquality, aes(x = Day, y = Temp,
#' group = as.factor(Month), color = as.factor(Month))) +
#' geom_point(size = 2.5) +
#' scale_colour_siamesedream()
#' @importFrom ggplot2 discrete_scale scale_color_gradientn
scale_colour_siamesedream <- scale_color_siamesedream
#' @title scale_fill_siamesedream
#' @rdname siamesedream_pal
#' @export
#' @examples
#'
#' ggplot(mpg, aes(displ)) +
#' geom_histogram(aes(fill = class),
#' col = "black", size = 0.1) +
#' scale_fill_siamesedream()
#' @importFrom ggplot2 discrete_scale scale_fill_gradientn
scale_fill_siamesedream <- function(n, type = "discrete",
reverse = FALSE, ...){
if (type == "discrete") {
ggplot2::discrete_scale("fill", "siamesedream",
siamesedream_pal(n = n, type = type,
reverse = reverse), ...)
} else {
ggplot2::scale_fill_gradientn(colors = siamesedream_pal(n = n, type = type,
reverse = reverse)(256))
}
}
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