#' @rdname geom_text_repel
#' @param label.padding Amount of padding around label, as unit or number.
#' Defaults to 0.25. (Default unit is lines, but other units can be specified
#' by passing \code{unit(x, "units")}).
#' @param label.r Radius of rounded corners, as unit or number. Defaults
#' to 0.15. (Default unit is lines, but other units can be specified by
#' passing \code{unit(x, "units")}).
#' @param label.size Size of label border, in mm.
#' @export
geom_label_sciname_repel <- function(
mapping = NULL, data = NULL, stat = "identity", position = "identity",
parse = TRUE,
...,
box.padding = 0.25,
label.padding = 0.25,
point.padding = 1e-6,
label.r = 0.15,
label.size = 0.25,
segment.colour = NULL,
segment.color = NULL,
segment.size = 0.5,
segment.alpha = NULL,
min.segment.length = 0.5,
arrow = NULL,
force = 1,
max.iter = 2000,
nudge_x = 0,
nudge_y = 0,
xlim = c(NA, NA),
ylim = c(NA, NA),
na.rm = FALSE,
show.legend = NA,
direction = c("both","y","x"),
seed = NA,
inherit.aes = TRUE
) {
if (!missing(nudge_x) || !missing(nudge_y)) {
if (!missing(position)) {
stop("Specify either `position` or `nudge_x`/`nudge_y`", call. = FALSE)
}
#position <- position_nudge(nudge_x, nudge_y)
}
layer(
data = data,
mapping = mapping,
stat = stat,
geom = GeomLabelScinameRepel,
position = position,
show.legend = show.legend,
inherit.aes = inherit.aes,
params = list(
parse = parse,
box.padding = to_unit(box.padding),
label.padding = to_unit(label.padding),
point.padding = to_unit(point.padding),
label.r = to_unit(label.r),
label.size = label.size,
segment.colour = segment.color %||% segment.colour,
segment.size = segment.size,
segment.alpha = segment.alpha,
min.segment.length = to_unit(min.segment.length),
arrow = arrow,
na.rm = na.rm,
force = force,
max.iter = max.iter,
nudge_x = nudge_x,
nudge_y = nudge_y,
xlim = xlim,
ylim = ylim,
direction = match.arg(direction),
seed = seed,
...
)
)
}
#' GeomLabelRepel
#' @rdname ggplot2-ggproto
#' @format NULL
#' @usage NULL
#' @export
GeomLabelScinameRepel <- ggproto(
"GeomLabelScinameRepel", Geom,
required_aes = c("x", "y", "sci"),
default_aes = aes(
colour = "black", fill = "white", size = 3.88, angle = 0,
alpha = NA, family = "", fontface = 1, lineheight = 1.2,
hjust = 0.5, vjust = 0.5, nonsci=NULL, important=NULL
),
draw_panel = function(
self, data, panel_scales, coord,
parse = TRUE,
na.rm = FALSE,
box.padding = 0.25,
label.padding = 0.25,
point.padding = 1e-6,
label.r = 0.15,
label.size = 0.25,
segment.colour = NULL,
segment.size = 0.5,
segment.alpha = NULL,
min.segment.length = 0.5,
arrow = NULL,
force = 1,
nudge_x = 0,
nudge_y = 0,
xlim = c(NA, NA),
ylim = c(NA, NA),
max.iter = 2000,
direction = "both",
seed = NA
) {
#browser()
# One if for each scenario
# All are present
if (!is.null(data$nonsci) & !is.null(data$important)){
sci <- ifelse(data$important,
paste0("bolditalic('", data$sci, "')"),
paste0("italic('", data$sci, "')"))
nonsci <- ifelse(data$important,
paste0("bold('", data$nonsci, "')"),
paste0("plain('", data$nonsci, "')"))
labe <- paste0(sci, "~", nonsci)
}
# Only Sci
if (is.null(data$nonsci) & is.null(data$important)){
sci <- paste0("italic('", data$sci, "')")
labe <- sci
}
# no nonsci, but important
if (is.null(data$nonsci) & !is.null(data$important)){
sci <- ifelse(data$important,
paste0("bolditalic('", data$sci, "')"),
paste0("italic('", data$sci, "')"))
labe <- sci
}
# nonsci, but no important
if (!is.null(data$nonsci) & is.null(data$important)){
sci <- paste0("italic('", data$sci, "')")
nonsci <- paste0("plain('", data$nonsci, "')")
labe <- paste0(sci, "~", nonsci)
}
# sci- nonsci+ imp-
if (is.null(data$sci) & is.null(data$important)){
nonsci <- paste0("plain('", data$nonsci, "')")
labe <- nonsci
}
if (is.null(data$sci) & !is.null(data$important)){
nonsci <- ifelse(data$important,
paste0("bold('", data$nonsci, "')"),
paste0("plain('", data$nonsci, "')"))
labe <- nonsci
}
if (is.null(data$sci) & is.null(data$nonsci)){
stop('You must specify either sci or nonsci')
}
# END
if (parse) {
lab <- parse(text = as.character(labe))
}
if (!length(which(not_empty(lab)))) {
return()
}
# Transform the nudges to the panel scales.
nudges <- data.frame(
x = data$x + nudge_x,
y = data$y + nudge_y
)
nudges <- coord$transform(nudges, panel_scales)
# Transform the raw data to the panel scales.
data <- coord$transform(data, panel_scales)
# The nudge is relative to the data.
nudges$x <- nudges$x - data$x
nudges$y <- nudges$y - data$y
# Transform limits to panel scales.
limits <- data.frame(x = xlim, y = ylim)
limits <- coord$transform(limits, panel_scales)
# Fill NAs with defaults.
limits$x[is.na(limits$x)] <- c(0, 1)[is.na(limits$x)]
limits$y[is.na(limits$y)] <- c(0, 1)[is.na(limits$y)]
# Convert hjust and vjust to numeric if character
if (is.character(data$vjust)) {
data$vjust <- compute_just(data$vjust, data$y)
}
if (is.character(data$hjust)) {
data$hjust <- compute_just(data$hjust, data$x)
}
ggname("geom_label_repel", gTree(
limits = limits,
data = data,
lab = lab,
nudges = nudges,
box.padding = to_unit(box.padding),
label.padding = to_unit(label.padding),
point.padding = to_unit(point.padding),
label.r = to_unit(label.r),
label.size = label.size,
segment.colour = segment.colour,
segment.size = segment.size,
segment.alpha = segment.alpha,
min.segment.length = to_unit(min.segment.length),
arrow = arrow,
force = force,
max.iter = max.iter,
direction = direction,
seed = seed,
cl = "labelrepeltree"
))
},
draw_key = draw_key_label
)
#' grid::makeContent function for the grobTree of textRepelGrob objects
#' @param x A grid grobTree.
#' @export
#' @noRd
makeContent.labelrepeltree <- function(x) {
# The padding around each bounding box.
box_padding_x <- convertWidth(x$box.padding, "npc", valueOnly = TRUE)
box_padding_y <- convertHeight(x$box.padding, "npc", valueOnly = TRUE)
# The padding around each point.
point_padding_x <- convertWidth(x$point.padding, "native", valueOnly = TRUE)
point_padding_y <- convertHeight(x$point.padding, "native", valueOnly = TRUE)
# Do not create text labels for empty strings.
valid_strings <- which(not_empty(x$lab))
invalid_strings <- which(!not_empty(x$lab))
# Create a dataframe with x y width height
boxes <- lapply(valid_strings, function(i) {
row <- x$data[i, , drop = FALSE]
hj <- x$data$hjust[i]
vj <- x$data$vjust[i]
t <- textGrob(
x$lab[i],
unit(row$x, "native") + x$label.padding,
unit(row$y, "native") + x$label.padding,
gp = gpar(
fontsize = row$size * .pt,
fontfamily = row$family,
fontface = row$fontface,
lineheight = row$lineheight
),
name = "text"
)
r <- roundrectGrob(
row$x, row$y, default.units = "native",
width = grobWidth(t) + 2 * x$label.padding,
height = grobHeight(t) + 2 * x$label.padding,
r = x$label.r,
gp = gpar(
col = scales::alpha(row$colour, row$alpha),
fill = scales::alpha(row$fill, row$alpha),
lwd = x$label.size * .pt
),
name = "box"
)
gw <- convertWidth(grobWidth(r), "native", TRUE)
gh <- convertHeight(grobHeight(r), "native", TRUE)
c(
"x1" = row$x - gw * hj - box_padding_x + x$nudges$x[i],
"y1" = row$y - gh * vj - box_padding_y + x$nudges$y[i],
"x2" = row$x + gw * (1 - hj) + box_padding_x + x$nudges$x[i],
"y2" = row$y + gh * (1 - vj) + box_padding_y + x$nudges$y[i]
)
})
# Make the repulsion reproducible if desired.
if (is.null(x$seed) || !is.na(x$seed)) {
set.seed(x$seed)
}
points_valid_first <- cbind(c(x$data$x[valid_strings],
x$data$x[invalid_strings]),
c(x$data$y[valid_strings],
x$data$y[invalid_strings]))
# Repel overlapping bounding boxes away from each other.
repel <- repel_boxes(
data_points = points_valid_first,
point_padding_x = point_padding_x,
point_padding_y = point_padding_y,
boxes = do.call(rbind, boxes),
xlim = range(x$limits$x),
ylim = range(x$limits$y),
hjust = x$data$hjust,
vjust = x$data$vjust,
force = x$force * 1e-6,
maxiter = x$max.iter,
direction = x$direction
)
grobs <- lapply(seq_along(valid_strings), function(i) {
xi <- valid_strings[i]
row <- x$data[xi, , drop = FALSE]
labelRepelGrob(
x$lab[xi],
x = unit(repel$x[i], "native"),
y = unit(repel$y[i], "native"),
x.orig = unit(x$data$x[xi], "native"),
y.orig = unit(x$data$y[xi], "native"),
box.padding = x$box.padding,
label.padding = x$label.padding,
point.padding = x$point.padding,
r = x$label.r,
text.gp = gpar(
col = scales::alpha(row$colour, row$alpha),
fontsize = row$size * .pt,
fontfamily = row$family,
fontface = row$fontface,
lineheight = row$lineheight
),
rect.gp = gpar(
col = scales::alpha(row$colour, row$alpha),
fill = scales::alpha(row$fill, row$alpha),
lwd = x$label.size * .pt
),
segment.gp = gpar(
col = scales::alpha(x$segment.colour %||% row$colour, x$segment.alpha %||% row$alpha),
lwd = x$segment.size * .pt
),
arrow = x$arrow,
min.segment.length = x$min.segment.length,
hjust = x$data$hjust[i],
vjust = x$data$vjust[i]
)
})
class(grobs) <- "gList"
setChildren(x, grobs)
}
labelRepelGrob <- function(
label,
x = unit(0.5, "npc"),
y = unit(0.5, "npc"),
x.orig = unit(0.5, "npc"),
y.orig = unit(0.5, "npc"),
default.units = "npc",
just = "center",
box.padding = 0.25,
label.padding = 0.25,
point.padding = 1e-6,
name = NULL,
text.gp = gpar(),
rect.gp = gpar(fill = "white"),
r = unit(0.1, "snpc"),
segment.gp = gpar(),
vp = NULL,
arrow = NULL,
min.segment.length = 0.5,
hjust = 0.5,
vjust = 0.5
) {
browser()
stopifnot(length(label) == 1)
if (!is.unit(x))
x <- unit(x, default.units)
if (!is.unit(y))
y <- unit(y, default.units)
gTree(
label = label,
x = x,
y = y,
x.orig = x.orig,
y.orig = y.orig,
just = just,
box.padding = box.padding,
label.padding = label.padding,
point.padding = point.padding,
r = r,
name = name,
text.gp = text.gp,
rect.gp = rect.gp,
segment.gp = segment.gp,
vp = vp,
cl = "labelrepelgrob",
arrow = arrow,
min.segment.length = min.segment.length,
hjust = hjust,
vjust = vjust
)
}
#' grid::makeContent function for the grobTree of textRepelGrob objects
#' @param x A grid grobTree.
#' @export
#' @noRd
makeContent.labelrepeltree <- function(x) {
# The padding around each bounding box.
box_padding_x <- convertWidth(x$box.padding, "npc", valueOnly = TRUE)
box_padding_y <- convertHeight(x$box.padding, "npc", valueOnly = TRUE)
# The padding around each point.
point_padding_x <- convertWidth(x$point.padding, "native", valueOnly = TRUE)
point_padding_y <- convertHeight(x$point.padding, "native", valueOnly = TRUE)
# Do not create text labels for empty strings.
valid_strings <- which(not_empty(x$lab))
invalid_strings <- which(!not_empty(x$lab))
# Create a dataframe with x y width height
boxes <- lapply(valid_strings, function(i) {
row <- x$data[i, , drop = FALSE]
hj <- x$data$hjust[i]
vj <- x$data$vjust[i]
t <- textGrob(
x$lab[i],
unit(row$x, "native") + x$label.padding,
unit(row$y, "native") + x$label.padding,
gp = gpar(
fontsize = row$size * .pt,
fontfamily = row$family,
fontface = row$fontface,
lineheight = row$lineheight
),
name = "text"
)
r <- roundrectGrob(
row$x, row$y, default.units = "native",
width = grobWidth(t) + 2 * x$label.padding,
height = grobHeight(t) + 2 * x$label.padding,
r = x$label.r,
gp = gpar(
col = scales::alpha(row$colour, row$alpha),
fill = scales::alpha(row$fill, row$alpha),
lwd = x$label.size * .pt
),
name = "box"
)
gw <- convertWidth(grobWidth(r), "native", TRUE)
gh <- convertHeight(grobHeight(r), "native", TRUE)
c(
"x1" = row$x - gw * hj - box_padding_x + x$nudges$x[i],
"y1" = row$y - gh * vj - box_padding_y + x$nudges$y[i],
"x2" = row$x + gw * (1 - hj) + box_padding_x + x$nudges$x[i],
"y2" = row$y + gh * (1 - vj) + box_padding_y + x$nudges$y[i]
)
})
# Make the repulsion reproducible if desired.
if (is.null(x$seed) || !is.na(x$seed)) {
set.seed(x$seed)
}
points_valid_first <- cbind(c(x$data$x[valid_strings],
x$data$x[invalid_strings]),
c(x$data$y[valid_strings],
x$data$y[invalid_strings]))
# Repel overlapping bounding boxes away from each other.
repel <- repel_boxes(
data_points = points_valid_first,
point_padding_x = point_padding_x,
point_padding_y = point_padding_y,
boxes = do.call(rbind, boxes),
xlim = range(x$limits$x),
ylim = range(x$limits$y),
hjust = x$data$hjust,
vjust = x$data$vjust,
force = x$force * 1e-6,
maxiter = x$max.iter,
direction = x$direction
)
grobs <- lapply(seq_along(valid_strings), function(i) {
xi <- valid_strings[i]
row <- x$data[xi, , drop = FALSE]
labelRepelGrob(
x$lab[xi],
x = unit(repel$x[i], "native"),
y = unit(repel$y[i], "native"),
x.orig = unit(x$data$x[xi], "native"),
y.orig = unit(x$data$y[xi], "native"),
box.padding = x$box.padding,
label.padding = x$label.padding,
point.padding = x$point.padding,
r = x$label.r,
text.gp = gpar(
col = scales::alpha(row$colour, row$alpha),
fontsize = row$size * .pt,
fontfamily = row$family,
fontface = row$fontface,
lineheight = row$lineheight
),
rect.gp = gpar(
col = scales::alpha(row$colour, row$alpha),
fill = scales::alpha(row$fill, row$alpha),
lwd = x$label.size * .pt
),
segment.gp = gpar(
col = scales::alpha(x$segment.colour %||% row$colour, x$segment.alpha %||% row$alpha),
lwd = x$segment.size * .pt
),
arrow = x$arrow,
min.segment.length = x$min.segment.length,
hjust = x$data$hjust[i],
vjust = x$data$vjust[i]
)
})
class(grobs) <- "gList"
setChildren(x, grobs)
}
labelRepelGrob <- function(
label,
x = unit(0.5, "npc"),
y = unit(0.5, "npc"),
x.orig = unit(0.5, "npc"),
y.orig = unit(0.5, "npc"),
default.units = "npc",
just = "center",
box.padding = 0.25,
label.padding = 0.25,
point.padding = 1e-6,
name = NULL,
text.gp = gpar(),
rect.gp = gpar(fill = "white"),
r = unit(0.1, "snpc"),
segment.gp = gpar(),
vp = NULL,
arrow = NULL,
min.segment.length = 0.5,
hjust = 0.5,
vjust = 0.5
) {
stopifnot(length(label) == 1)
if (!is.unit(x))
x <- unit(x, default.units)
if (!is.unit(y))
y <- unit(y, default.units)
gTree(
label = label,
x = x,
y = y,
x.orig = x.orig,
y.orig = y.orig,
just = just,
box.padding = box.padding,
label.padding = label.padding,
point.padding = point.padding,
r = r,
name = name,
text.gp = text.gp,
rect.gp = rect.gp,
segment.gp = segment.gp,
vp = vp,
cl = "labelrepelgrob",
arrow = arrow,
min.segment.length = min.segment.length,
hjust = hjust,
vjust = vjust
)
}
#' grid::makeContent function for labelRepelGrob.
#'
#' @param x A grid grob.
#' @export
#' @noRd
makeContent.labelrepelgrob <- function(x) {
hj <- resolveHJust(x$just, NULL)
vj <- resolveVJust(x$just, NULL)
t <- textGrob(
x$label,
x$x + 2 * (0.5 - hj) * x$box.padding,
x$y + 2 * (0.5 - vj) * x$box.padding,
just = c(hj, vj),
gp = x$text.gp,
name = "text"
)
r <- roundrectGrob(
x$x + 2 * (0.5 - hj) * x$box.padding,
x$y + 2 * (0.5 - vj) * x$box.padding,
default.units = "native",
width = grobWidth(t) + 2 * x$label.padding,
height = grobHeight(t) + 2 * x$label.padding,
just = c(hj, vj),
r = x$r,
gp = x$rect.gp,
name = "box"
)
x1 <- convertWidth(x$x - 0.5 * grobWidth(r), "native", TRUE)
x2 <- convertWidth(x$x + 0.5 * grobWidth(r), "native", TRUE)
y1 <- convertHeight(x$y - 0.5 * grobHeight(r), "native", TRUE)
y2 <- convertHeight(x$y + 0.5 * grobHeight(r), "native", TRUE)
point_pos <- c(
convertWidth(x$x.orig, "native", TRUE),
convertHeight(x$y.orig, "native", TRUE)
)
center <- centroid(c(x1, y1, x2, y2), x$hjust, x$vjust)
# Get the coordinates of the intersection between the line from the
# original data point to the centroid and the rectangle's edges.
text_box <- c(x1, y1, x2, y2)
#int <- intersect_line_rectangle(point_pos, center, c(x1, y1, x2, y2))
int <- select_line_connection(point_pos, text_box)
# Check if the data point is inside the label box.
point_inside <- FALSE
if (text_box[1] <= point_pos[1] && point_pos[1] <= text_box[3] &&
text_box[2] <= point_pos[2] && point_pos[2] <= text_box[4]) {
point_inside <- TRUE
}
# Nudge the original data point toward the label with point.padding.
point_padding_x <- convertWidth(x$point.padding, "native", TRUE) / 2
point_padding_y <- convertHeight(x$point.padding, "native", TRUE) / 2
point_padding <- point_padding_x > 0 & point_padding_y > 0
if (point_padding) {
point_box <- c(
point_pos[1] - point_padding_x, point_pos[2] - point_padding_y,
point_pos[1] + point_padding_x, point_pos[2] + point_padding_y
)
point_pos <- intersect_line_rectangle(center, point_pos, point_box)
}
# Compute the distance between the data point and the edge of the text box.
dx <- abs(int[1] - point_pos[1])
dy <- abs(int[2] - point_pos[2])
d <- sqrt(dx * dx + dy * dy)
# Scale the unit vector by the minimum segment length.
if (d > 0) {
mx <- convertWidth(x$min.segment.length, "native", TRUE)
my <- convertHeight(x$min.segment.length, "native", TRUE)
min.segment.length <- sqrt((mx * dx / d) ^ 2 + (my * dy / d) ^ 2)
}
if (!point_inside && d > 0 && euclid(int, point_pos) > min.segment.length) {
s <- segmentsGrob(
x0 = int[1],
y0 = int[2],
x1 = point_pos[1],
y1 = point_pos[2],
default.units = "native",
gp = x$segment.gp,
name = "segment",
arrow = x$arrow
)
setChildren(x, gList(s, r, t))
} else {
setChildren(x, gList(r, t))
}
}
## Utilities
"%||%" <- function(a, b) {
if (!is.null(a)) a else b
}
#' Return a boolean vector of non-empty items.
#'
#' @param xs Vector with a mix of "expression" items, "character" items,
#' and items from other classes.
#' @return Boolean vector indicating which items are not empty.
#' @noRd
not_empty <- function(xs) {
sapply(seq_along(xs), function(i) {
if (is.expression(xs[i])) {
return(length(nchar(xs[i])) > 0)
} else {
return(xs[i] != "")
}
})
}
#' Return a unit version of the argument.
#'
#' @param x Number or unit object.
#' @return unit(x, "lines") if number or the unchanged argument if it's already
#' a unit object.
#' @noRd
to_unit <- function(x) {
# don't change arg if already unit
if (class(x) == "unit") {
return(x)
}
# NA used to exclude points from repulsion calculations
if (is.na(x)) {
return(NA)
}
unit(x, "lines")
}
#### rcpp exports
# Generated by using Rcpp::compileAttributes() -> do not edit by hand
# Generator token: 10BE3573-1514-4C36-9D1C-5A225CD40393
#' Euclidean distance between two points.
#' @param a A point.
#' @param b A point.
#' @return The distance between two points.
#' @noRd
NULL
#' Squared Euclidean distance between two points.
#' @param a A point.
#' @param b A point.
#' @return The distance between two points.
#' @noRd
NULL
#' Move a box into the area specificied by x limits and y limits.
#' @param b A box like \code{c(x1, y1, x2, y2)}
#' @param xlim A Point with limits on the x axis like \code{c(xmin, xmax)}
#' @param ylim A Point with limits on the y axis like \code{c(xmin, xmax)}
#' @param force Magnitude of the force (defaults to \code{1e-6})
#' @noRd
NULL
#' Get the coordinates of the center of a box.
#' @param b A box like \code{c(x1, y1, x2, y2)}
#' @noRd
NULL
#' Test if a box overlaps another box.
#' @param a A box like \code{c(x1, y1, x2, y2)}
#' @param b A box like \code{c(x1, y1, x2, y2)}
#' @noRd
NULL
#' Compute the repulsion force upon point \code{a} from point \code{b}.
#'
#' The force decays with the squared distance between the points, similar
#' to the force of repulsion between magnets.
#'
#' @param a A point like \code{c(x, y)}
#' @param b A point like \code{c(x, y)}
#' @param force Magnitude of the force (defaults to \code{1e-6})
#' @param direction direction in which to exert force, either "both", "x", or "y"
#' @noRd
NULL
#' Compute the spring force upon point \code{a} from point \code{b}.
#'
#' The force increases with the distance between the points, similar
#' to Hooke's law for springs.
#'
#' @param a A point like \code{c(x, y)}
#' @param b A point like \code{c(x, y)}
#' @param force Magnitude of the force (defaults to \code{1e-6})
#' @param direction direction in which to exert force, either "both", "x", or "y"
#' @noRd
NULL
#' Euclidean distance between two points.
#' @param a A numeric vector.
#' @param b A numeric vector.
#' @return The distance between two points.
#' @noRd
euclid <- function(a, b) {
.Call('_ggrepel_euclid', PACKAGE = 'ggrepel', a, b)
}
#' Get the coordinates of the center of a box.
#' @param b A box like \code{c(x1, y1, x2, y2)}
#' @noRd
centroid <- function(b, hjust, vjust) {
.Call('_ggrepel_centroid', PACKAGE = 'ggrepel', b, hjust, vjust)
}
#' Find the intersections between a line and a rectangle.
#' @param p1 A point like \code{c(x, y)}
#' @param p2 A point like \code{c(x, y)}
#' @param b A rectangle like \code{c(x1, y1, x2, y2)}
#' @noRd
intersect_line_rectangle <- function(p1, p2, b) {
.Call('_ggrepel_intersect_line_rectangle', PACKAGE = 'ggrepel', p1, p2, b)
}
select_line_connection <- function(p1, b) {
.Call('_ggrepel_select_line_connection', PACKAGE = 'ggrepel', p1, b)
}
approximately_equal <- function(x1, x2) {
.Call('_ggrepel_approximately_equal', PACKAGE = 'ggrepel', x1, x2)
}
#' Adjust the layout of a list of potentially overlapping boxes.
#' @param data_points A numeric matrix with rows representing points like
#' \code{rbind(c(x, y), c(x, y), ...)}
#' @param point_padding_x Padding around each data point on the x axis.
#' @param point_padding_y Padding around each data point on the y axis.
#' @param boxes A numeric matrix with rows representing boxes like
#' \code{rbind(c(x1, y1, x2, y2), c(x1, y1, x2, y2), ...)}
#' @param xlim A numeric vector representing the limits on the x axis like
#' \code{c(xmin, xmax)}
#' @param ylim A numeric vector representing the limits on the y axis like
#' \code{c(ymin, ymax)}
#' @param force Magnitude of the force (defaults to \code{1e-6})
#' @param maxiter Maximum number of iterations to try to resolve overlaps
#' (defaults to 2000)
#' @noRd
repel_boxes <- function(data_points, point_padding_x, point_padding_y, boxes, xlim, ylim, hjust, vjust, force = 1e-6, maxiter = 2000L, direction = "both") {
.Call('_ggrepel_repel_boxes', PACKAGE = 'ggrepel', data_points, point_padding_x, point_padding_y, boxes, xlim, ylim, hjust, vjust, force, maxiter, direction)
}
#### utilities grid
# Name ggplot grid object
# Convenience function to name grid objects
#
# @keyword internal
ggname <- function(prefix, grob) {
grob$name <- grobName(grob, prefix)
grob
}
width_cm <- function(x) {
if (is.grob(x)) {
convertWidth(grobWidth(x), "cm", TRUE)
} else if (is.list(x)) {
vapply(x, width_cm, numeric(1))
} else if (is.unit(x)) {
convertWidth(x, "cm", TRUE)
} else {
stop("Unknown input")
}
}
height_cm <- function(x) {
if (is.grob(x)) {
convertWidth(grobHeight(x), "cm", TRUE)
} else if (is.list(x)) {
vapply(x, height_cm, numeric(1))
} else if (is.unit(x)) {
convertHeight(x, "cm", TRUE)
} else {
stop("Unknown input")
}
}
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