Usage
spplot(obj, ...)
spplot.grid(obj, zcol = names(obj), ..., names.attr,
scales = list(draw = FALSE), xlab = NULL, ylab = NULL, aspect = mapasp(obj,xlim,ylim),
panel = panel.gridplot, sp.layout = NULL, formula, xlim = bbox(obj)[1, ],
ylim = bbox(obj)[2, ], checkEmptyRC = TRUE)
spplot.polygons(obj, zcol = names(obj), ..., names.attr,
scales = list(draw = FALSE), xlab = NULL, ylab = NULL, aspect = mapasp(obj,xlim,ylim),
panel = panel.polygonsplot, sp.layout = NULL, formula, xlim = bbox(obj)[1, ],
ylim = bbox(obj)[2, ])
spplot.points(obj, zcol = names(obj), ..., names.attr,
scales = list(draw = FALSE), xlab = NULL, ylab = NULL, aspect = mapasp(obj,xlim,ylim),
panel = panel.pointsplot, sp.layout = NULL, identify = FALSE, formula,
xlim = bbexpand(bbox(obj)[1, ], 0.04), ylim = bbexpand(bbox(obj)[2, ], 0.04))
mapLegendGrob(obj, widths = unit(1, "cm"), heights = unit(1, "cm"),
fill = "black", just = "right")
sp.theme(set = FALSE, regions = list(col = bpy.colors(100)), ...)
layout.north.arrow(type = 1)
layout.scale.bar(height = 0.05)
spplot.locator(n = 512, type = "n", ...)
Arguments
zcol
character; attribute name(s) or column number(s) in attribute table
names.attr
names to use in panel, if different from zcol names
scales
scales argument to be passed to Lattice plots; use
list(draw = TRUE)
to draw axes scales; see xyplot for full options aspect
aspect ratio for spatial axes; defaults to "iso" (one unit
on the x-axis equals one unit on the y-axis) but may be set to more
suitable values if the data are e.g. if coordinates are latitude/longitude
sp.layout
NULL or list; see notes below
identify
if not FALSE, identify plotted objects (currently only working
for points plots). Labels for identification are the row.names of the
attribute table row.names(as.data.frame(obj))
. If TRUE, identify
on panel (1,1)
; for identifying
formula
optional; may be useful to plot a transformed value. Defaults
to z~x+y
for single and z~x+y|name
for multiple attributes; use
e.g. exp(x)~x+y|name
to plot the exponent of the z-variable
xlim
numeric; x-axis limits
ylim
numeric; y-axis limits
just
grob placement justification
set
logical; if TRUE, trellis.par.set is called, else a list is returned
that can be passed to trellis.par.set()
regions
color ramp for the theme
height
height of scale bar; width is 1.0
checkEmptyRC
logical; if TRUE, a check is done to see if
empty rows or columns are present, and need to be taken care of. Setting
to FALSE may improve speed.