envinmrRasterPlot: modify spplot objects

In environmentalinformatics-marburg/Rsenal: Magic R Functions for Things Various

modify spplot objects

Description

this function updates existing spplot objects so that i) the axes are drawn at all four sites (as these usually represent coordinates) and ii) the colorkey is plotted on top of the graph so that the main = ... argument can be used to describe the colorkey.

Usage

envinmrRasterPlot(
  spplot.obj,
  rot = 90,
  col,
  key.cex = 1,
  width = 1,
  height = 0.75,
  ...
)

Arguments

spplot.obj	the spplot object to be modified
rot	Rotation angle of the y-axis tick labels. Defaults to 90 degrees.
col	Color vector. If not specified, color information will automatically be extracted from spplot.obj.
key.cex	size of the colorkey labels.
width	Key width.
height	Key height.
...	additional arguments passed to update.trellis

Value

a single lattice plot object

Author(s)

Tim Appelhans

See Also

update.trellis, spplot

Examples

library(RColorBrewer)

rst <- raster::raster(volcano)

p1 <- spplot(rst)
p1

p2 <- envinmrRasterPlot(p1, col.regions = envinmrPalette(100))
p2

## change the colors as you like
p3 <- envinmrRasterPlot(p2, 
                        col.regions = 
                        colorRampPalette(brewer.pal(9, "YlGnBu"))(100))
p3

Orcs::latticeCombineGrid(list(p2, p1, p3))

environmentalinformatics-marburg/Rsenal documentation built on July 28, 2023, 6:09 a.m.