I should add that you can also use the par.settings()
mechanism to set your linejoin specification on the fly:
x <- 1:4; y <- c(1,3,2,4)
xyplot(y ~ x, type = "l", lwd = 20,
par.settings = list(grid.pars = list(linejoin = "mitre")))
Peter Ehlers
On 2012-08-22 12:28, Peter Ehlers wrote:
You can set grid parameters in the grid.pars component of
trellis.par.get().
x <- 1:4; y <- c(1,3,2,4)
xyplot(y ~ x, type = "l", lwd = 20) # default linejoin
## set linejoin to 'mitre'
trellis.par.set(grid.pars = list(linejoin = "mitre"))
xyplot(y ~ x, type = "l", lwd = 20)
Peter Ehlers
On 2012-08-22 11:09, Morgan, Andrew Parker wrote:
R users,
I am creating a series of scatterplots with Lattice's xyplot(). Some of the plotting symbols are
squares with thick borders. The corners of the squares are rounded by default; I would like them
to be square. In base graphics this is easily done with par(ljoin = "mitre"), and in
grid graphics with gpar(linejoin = "mitre"). Is there an analogous parameter in Lattice?
Passing ljoin as an argument to xyplot() or panel functions doesn't seem to work, and I can't find
anything promising in lattice.par.get().
Thanks,
Andrew Morgan
Department of Genetics
University of North Carolina - Chapel Hill
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