#' Remove axis elements.
#' @description A simple wrapper of the \code{\link[ggplot2]{theme}} function
#' to quickly remove axis elements.
#' @param index 'all' (default), 'x' or 'y' axis will be removed.
#' @return The theme.
#' @importFrom ggplot2 theme element_blank
#' @rdname remove_axis
#' @examples
#' quickcor(mtcars) + geom_circle2() + remove_axis()
#' quickcor(mtcars) + geom_circle2() + remove_axis("x")
#' quickcor(mtcars) + geom_circle2() + remove_axis("y")
#' @author Houyun Huang, Lei Zhou, Jian Chen, Taiyun Wei
#' @export
remove_axis <- function(index = c("all", "x", "y")) {
index <- match.arg(index)
thm_mv_x <- ggplot2::theme(
axis.title.x = element_blank(),
axis.title.x.top = element_blank(),
axis.title.x.bottom = element_blank(),
axis.text.x = element_blank(),
axis.text.x.top = element_blank(),
axis.text.x.bottom = element_blank(),
axis.ticks.x = element_blank(),
axis.ticks.x.top = element_blank(),
axis.ticks.x.bottom = element_blank(),
axis.line.x = element_blank(),
axis.line.x.top = element_blank(),
axis.line.x.bottom = element_blank()
)
thm_mv_y <- ggplot2::theme(
axis.title.y = element_blank(),
axis.title.y.left = element_blank(),
axis.title.y.right = element_blank(),
axis.text.y = element_blank(),
axis.text.y.left = element_blank(),
axis.text.y.right = element_blank(),
axis.ticks.y = element_blank(),
axis.ticks.y.left = element_blank(),
axis.ticks.y.right = element_blank(),
axis.line.y = element_blank(),
axis.line.y.left = element_blank(),
axis.line.y.right = element_blank()
)
if(index == "all") {
thm_mv_x + thm_mv_y
} else if (index == "x"){
thm_mv_x
} else {
thm_mv_y
}
}
#' @rdname remove_axis
#' @export
remove_all_axis <- function() {
remove_axis("all")
}
#' @rdname remove_axis
#' @export
remove_x_axis <- function() {
remove_axis("x")
}
#' @rdname remove_axis
#' @export
remove_y_axis <- function() {
remove_axis("y")
}
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