# deprecated
# kongdd,
#' @export
panel.polygonsplot.shade <- function (
x, y, z, subscripts,
density = NULL, angle = 45, border = NULL,
show.shade = TRUE,
at = pretty(z), shrink, labels = NULL,
label.style = c("mixed", "flat", "align"),
contour = FALSE,
region = TRUE, col = add.line$col, lty = add.line$lty,
lwd = add.line$lwd, cex = add.text$cex, font = add.text$font,
fontfamily = add.text$fontfamily, fontface = add.text$fontface,
col.text = add.text$col, ..., col.regions = regions$col,
alpha.regions = regions$alpha, grid.polygons, sp.layout)
{
regions <- trellis.par.get("regions")
add.line <- trellis.par.get("add.line")
add.text <- trellis.par.get("add.text")
numcol <- length(at) - 1
numcol.r <- length(col.regions)
col.regions <- if (numcol.r <= numcol)
rep(col.regions, length = numcol)
else col.regions[floor(1 + (1:numcol - 1) * (numcol.r - 1)/(numcol - 1))]
zcol <- rep(NA, length(z))
for (i in seq(along = col.regions)) zcol[!is.na(x) & !is.na(y) &
!is.na(z) & z >= at[i] & z < at[i + 1]] <- i
label.style <- match.arg(label.style)
x <- as.numeric(x[subscripts])
y <- as.numeric(y[subscripts])
z <- as.numeric(z[subscripts])
zcol <- as.numeric(zcol[subscripts])
sppanel(list(sp.layout), panel.number(), first = TRUE)
if (any(subscripts)) {
if (is(grid.polygons, "SpatialLines")) {
sp.lines3 = function(x, col, ...) panel.lines(coordinates(x),
col = col, ...)
sp.lines2 = function(x, col, ...) lapply(x@Lines,
sp.lines3, col, ...)
for (i in 1:length(grid.polygons@lines)) sp.lines2(grid.polygons@lines[[i]],
col = col.regions[zcol[i]], lwd = lwd, lty = lty,
...)
} else {
pls = slot(grid.polygons, "polygons")
pO = slot(grid.polygons, "plotOrder")
col = rep(col, length.out = length(grid.polygons))
for (i in pO) {
# if (get_Polypath()) {
# print("d1")
# obj = as(as(grid.polygons[i, ], "SpatialLines"), "SpatialPointsDataFrame")
# cc = coordinates(obj)
# id = as.numeric(obj$Line.NR)
# fill = col.regions[zcol[i]]
# alpha = alpha.regions
# grid.path(cc[, 1], cc[, 2], id, default.units = "native",
# gp = gpar(col = col[i], fill = fill, alpha = alpha,
# lwd = lwd, lty = lty, ...))
# } else {
Srs <- slot(pls[[i]], "Polygons")
pOi <- slot(pls[[i]], "plotOrder")
for (j in pOi) {
coords = slot(Srs[[j]], "coords")
# browser()
if (slot(Srs[[j]], "hole")) {
bg = trellis.par.get()$background
fill = ifelse (bg$col == "transparent", fill = "white", bg$col)
alpha = bg$alpha
} else {
fill = col.regions[zcol[i]]
alpha = alpha.regions
}
gp = gpar(fill = fill, alpha = alpha, col = col, lwd = lwd, lty = lty)
if (show.shade){
grid.polygon(coords[, 1], coords[, 2], default.units = "native", gp = gp)
}
panel.polylines(coords[, 1], coords[, 2],
density, angle, border,
fill = fill, alpha = alpha, col = col, lwd = lwd, lty = lty, ...)
}
# }
}
}
}
sppanel(list(sp.layout), panel.number(), first = FALSE)
}
# grid.polygon <- function (x = c(0, 0.5, 1, 0.5), y = c(0.5, 1, 0.5, 0), id = NULL,
# id.lengths = NULL, default.units = "npc", name = NULL,
# gp = gpar(), draw = TRUE, vp = NULL)
# {
# pg <- polygonGrob(x = x, y = y, id = id, id.lengths = id.lengths,
# default.units = default.units, name = name, gp = gp,
# vp = vp)
# if (draw)
# grid.draw(pg)
# invisible(pg)
# }
# polygonGrob <- function (x = c(0, 0.5, 1, 0.5), y = c(0.5, 1, 0.5, 0), id = NULL,
# id.lengths = NULL, default.units = "npc", name = NULL,
# gp = gpar(), vp = NULL)
# {
# if (!is.unit(x))
# x <- unit(x, default.units)
# if (!is.unit(y))
# y <- unit(y, default.units)
# grob(x = x, y = y, id = id, id.lengths = id.lengths, name = name,
# gp = gp, vp = vp, cl = "polygon")
# }
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