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panel.spplot {sp}

panel and panel utility functions for spplot
Package: 
sp
Version: 
1.0-14

Description

panel functions for spplot functions, and functions that can be useful within these panel functions

Usage

spplot.key(sp.layout, rows = 1, cols = 1)
SpatialPolygonsRescale(obj, offset, scale = 1, fill = "black", col = "black",
    plot.grid = TRUE, ...)
sp.lines(obj, col = 1, ...)
sp.points(obj, pch = 3, ...)
sp.polygons(obj, col = 1, fill = "transparent", ...)
sp.grid(obj, col = 1, alpha = 1,..., at = pretty(obj[[1]]), col.regions = col)
sp.text(loc, txt, ...)
sp.panel.layout(lst, p.number, ...)
bbexpand(x, fraction)

Arguments

sp.layout
list; see spplot for definition
rows
integer; panel row(s) for which the layout should be drawn
cols
integer; panel column(s) for which the layout should be drawn
obj
object of class SpatialPolygons-class for SpatialPolygonsRescale; of class SpatialLines-class, Lines-class or Line-class for sp.lines of a class that has a coordinates-methods for sp.points; of class SpatialPolygons-class for sp.polygons. When obj is character, the actual object is retrieved by get(obj) before its class is evaluated.
offset
offset for shifting a Polygons object
scale
scale for rescaling
fill
fill color
col
line color
plot.grid
logical; plot through grid functions (TRUE), or through traditional graphics functions (FALSE)
pch
plotting character
at
numeric; values at which colour breaks should occur
col.regions
colours to fill the grid cells, defaults to col
loc
numeric vector of two elements
txt
text to be plotted
alpha
alpha (transparency) level
lst
sp.layout argument, see spplot
p.number
panel number; in a panel, panel.number() should be passed to this argument
x
length two numeric vector, containing a range
fraction
fraction to expand the range by
...
arguments passed to the underlying panel, lattice or grid functions

References

http://r-spatial.sourceforge.net/ has a graph gallery with examples with R code.

Note

The panel functions of spplot, panel.gridplot for grids, panel.pointsplot for points, or panel.polygonsplot for lines or polygons can be called with arguments (x,y,...). Customizing spplot plots can be done by extending the panel function, or by supplying an sp.layout argument; see the documentation for spplot. Inside these panel functions, sp.panel.layout is called to deal with plotting the items in a sp.layout object.

SpatialPolygonsRescale scales and shifts an object of class SpatialPolygons-class; this is useful e.g. for scale bars, or other layout items.

sp.lines, sp.points, sp.polygons and sp.text plot lines, points, polygons or text in a panel.

spplot.key draws the sp.layout object at given rows/cols.

sp.pagefn can be passed as a page argument, and will call function spplot.key for the last panel drawn on a page.

See Also

spplot, spplot-methods

Author(s)

Edzer Pebesma, edzer.pebesma@uni-muenster.de

Documentation reproduced from package sp, version 1.0-14. License: GPL (>= 2)