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99 lines
2.4 KiB
99 lines
2.4 KiB
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geom_oscar <- function(mapping = NULL, data = NULL,
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...,
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na.rm = FALSE,
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show.legend = NA,
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inherit.aes = TRUE) {
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stat = "oscar"
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position = "identity"
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layer(
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data = data,
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mapping = mapping,
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stat = stat,
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geom = GeomOscar,
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position = position,
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show.legend = show.legend,
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inherit.aes = inherit.aes,
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params = list(
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na.rm = na.rm,
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...
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)
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)
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}
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StatOscar<- ggplot2::ggproto("StatOscar", Stat,
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required_aes = c("xmin", "xmax", "ymin", "ymax"),
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default_aes = ggplot2::aes(
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l_fill = "blue", r_fill = "red", colour = NA, size = 0.1, linetype = 1, alpha = NA
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),
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required_aes = c("x", "y"),
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compute_panel = function(data, scales) {
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data
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}
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)
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stat_oscar <- function(mapping = NULL, data = NULL, geom = "oscar",
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position = "identity", na.rm = FALSE, n = 500, revolutions = NULL,
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show.legend = NA, inherit.aes = TRUE, ...) {
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layer(
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stat = StatOscar, data = data, mapping = mapping, geom = geom,
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position = position, show.legend = show.legend, inherit.aes = inherit.aes,
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params = list(na.rm = na.rm, ...)
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)
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}
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GeomOscar <- ggplot2::ggproto("GeomOscar", ggplot2::Geom,
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default_aes = ggplot2::aes(
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l_fill = "blue", r_fill = "red", colour = NA, size = 0.1, linetype = 1, alpha = NA
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),
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draw_panel = function(self, data, panel_params, coord) {
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coords <- coord$transform(data, panel_params)
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lapply(1:length(coords$xmin), function(i) {
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oscarGrob(
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name = as.character(i),
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coords$xmin[i], coords$ymax[i],
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width = (coords$xmax[i] - coords$xmin[i]),
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height = (coords$ymax[i] - coords$ymin)[i],
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default.units = "native",
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gpbl = grid::gpar(
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col = coords$colour[i],
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fill = alpha(coords$l_fill[i], coords$alpha[i]),
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lwd = coords$size[i] * .pt,
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lty = coords$linetype[i],
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lineend = "butt"
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),
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gptr = grid::gpar(
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col = coords$colour[i],
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fill = alpha(coords$r_fill[i], coords$alpha[i]),
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lwd = coords$size[i] * .pt,
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lty = coords$linetype[i],
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lineend = "butt"
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)
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)
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}) -> gl
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grobs <- do.call(grid::gList, gl)
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ggname("geom_oscar", grid::grobTree(children = grobs))
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},
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draw_key = ggplot2::draw_key_polygon
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)
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