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#' Add heatmap of 2d bin counts.
#'
#' @section Aesthetics:
#' \Sexpr[results=rd,stage=build]{ggplot2:::rd_aesthetics("geom", "bin2d")}
#'
#' @export
#' @inheritParams geom_point
#' @examples
#' d <- ggplot(diamonds, aes(x = x, y = y)) + xlim(4,10) + ylim(4,10)
#' d + geom_bin2d()
#' d + geom_bin2d(binwidth = c(0.1, 0.1))
#'
#' # See ?stat_bin2d for more examples
geom_bin2d <- function (mapping = NULL, data = NULL, stat = "bin2d", position = "identity", ...) {
GeomBin2d$new(mapping = mapping, data = data, stat = stat, position = position, ...)
}
GeomBin2d <- proto(Geom, {
draw <- function(., data, scales, coordinates, ...) {
GeomRect$draw(data, scales, coordinates, ...)
}
objname <- "bin2d"
guide_geom <- function(.) "polygon"
default_stat <- function(.) StatBin2d
required_aes <- c("xmin", "xmax", "ymin", "ymax")
default_aes <- function(.) {
aes(colour = NA, fill = "grey60", size = 0.5, linetype = 1, weight = 1, , alpha = NA)
}
})
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