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## =============================================================================
## text in 3D
## =============================================================================
# x, y, z, colvar: same length
text3D <- function(x, y, z, labels, ..., colvar = NULL,
phi = 40, theta = 40,
col = NULL, NAcol = "white", breaks = NULL,
colkey = NULL,
panel.first = NULL,
clim = NULL, clab = NULL, bty = "b",
add = FALSE, plot = TRUE) {
plist <- initplist(add)
x <- as.vector(x)
y <- as.vector(y)
z <- as.vector(z)
if (length(y) != length(x))
stop("'y' should have same length as 'x'")
if (length(z) != length(x))
stop("'z' should have same length as 'x'")
if (length(labels) != length(x))
stop("'labels' should have same length as 'x'")
dot <- splitdotpersp(list(...), bty, NULL, x, y, z, plist = plist, breaks = breaks)
if (ispresent(colvar)) {
if (length(colvar) != length(x))
stop("'colvar' should have same length as 'x', 'y' and 'z'")
colvar <- as.vector(colvar)
if (is.null(clim))
clim <- range(colvar, na.rm = TRUE)
if (dot$clog) {
colvar <- log(colvar)
clim <- log(clim)
}
if (is.null(col))
if (is.null(breaks))
col <- jet.col(100)
else
col <- jet.col(length(breaks)-1)
breaks <- check.breaks(breaks, col)
iscolkey <- is.colkey(colkey, col)
if (iscolkey)
colkey <- check.colkey(colkey)
if (! is.null(dot$alpha))
col <- setalpha(col, dot$alpha)
Col <- variablecol(colvar, col, NAcol, clim, breaks)
} else {
if (is.null(col))
col <- "black"
if (! is.null(dot$alpha))
col <- setalpha(col, dot$alpha)
Col <- rep(col, length.out = length(x))
iscolkey <- FALSE
}
if (is.null(plist)) {
do.call("perspbox", c(alist(x = range(x), y = range(y),
z = range(z, na.rm = TRUE),
phi = phi, theta = theta, plot = plot, colkey = colkey, col = col),
dot$persp))
plist <- getplist()
}
if (is.function(panel.first))
panel.first(plist$mat)
Proj <- project(x, y, z, plist) # sort labels according to view
setargs <- function(dot, default) {
if (is.null(dot))
rep(default, length.out = length(x))
else if (is.vector(dot) & length(dot) > 1)
stop("cannot use a vector for arguments of 'text3D'")
else
rep(unlist(dot), length.out = length(x))
}
alpha <- dot$alpha; if (is.null(alpha)) alpha <- NA
alpha <- rep(alpha, length.out = length(x))
tlist <- list(x = x,
y = y,
z = z,
labels = labels,
col = Col,
adj = setargs (dot$points$adj, 0),
cex = setargs (dot$points$cex, 1),
font = setargs(dot$points$font, 1),
srt = setargs(dot$points$srt, 0),
alpha = alpha,
proj = Proj)
if (iscolkey)
plist <- plistcolkey(plist, colkey, col, clim, clab,
dot$clog, type = "label3D", breaks = breaks)
plist <- plot_struct_3D (plist, labels = tlist, plot = plot)
setplist(plist)
invisible(plist$mat)
}
## =============================================================================
## text in 2D
## =============================================================================
text2D <- function(x, y, labels, ..., colvar = NULL,
col = NULL, NAcol = "white", breaks = NULL,
colkey = NULL,
clim = NULL, clab = NULL, add = FALSE, plot = TRUE) {
if (add)
plist <- getplist()
else
plist <- NULL
plist <- add2Dplist(plist, "text", x = x, y = y, labels = labels,
colvar = colvar, col = col, NAcol = NAcol,
breaks = breaks, colkey = colkey,
clim = clim, clab = clab, ...)
setplist(plist)
if (!plot) return()
x <- as.vector(x)
y <- as.vector(y)
if (length(y) != length(x))
stop("'y' should have same length as 'x'")
if (length(labels) != length(x))
stop("'labels' should have same length as 'x'")
dots <- splitpardots(list(...))
if (! is.null(colvar)) {
if (is.null(col))
if (is.null(breaks))
col <- jet.col(100)
else
col <- jet.col(length(breaks)-1)
if (dots$clog) {
colvar <- log(colvar)
if (! is.null(clim)) clim <- log(clim)
}
iscolkey <- is.colkey(colkey, col)
if (iscolkey) {
colkey <- check.colkey(colkey, add)
if (! add)
par.ori <- par(plt = colkey$parplt)
colkey$breaks <- breaks
}
if (length(colvar) != length(x))
stop ("length of 'colvar' should be equal to length of 'x', and 'y'")
if (is.null(clim))
clim <- range(colvar, na.rm = TRUE)
if (! is.null(dots$alpha)) col <- setalpha(col, dots$alpha)
Col <- variablecol(colvar, col, NAcol, clim, breaks)
} else {
Col <- col
if (is.null(Col))
Col <- "black"
if (! is.null(dots$alpha))
Col <- setalpha(Col, dots$alpha)
iscolkey <- FALSE
}
if (! add)
dots$main <- start2Dplot(dots$main, x, y)
do.call("text", c(alist(x, y, labels = labels, col = Col), dots$points))
if (iscolkey) {
drawcolkey(colkey, col, clim, clab, dots$clog)
if (! add)
par(plt = par.ori)
par(mar = par("mar"))
}
}
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