[R] grid package and lines

Deepayan Sarkar deepayan at stat.wisc.edu
Wed Nov 27 20:54:21 CET 2002


On Wednesday 27 November 2002 05:27 am, Willemsen, Sten wrote:
> Hello list,
>
> When using the grid package in R 1.60 under windows grid.lines and
> grid.line.to seem not to use the coordinate system as defined by the
> current viewport whereas grin.points does. Am I doing something wrong?

?grid.points says:

Usage:

     grid.points(x = unit(runif(10), "native"),
                 y = unit(runif(10), "native"),
                 pch = 1, size = unit(1, "char"),
                 default.units = "native", 
                                 ^^^^^^^^
                 gp=gpar(), draw = TRUE, vp = NULL)


?grid.lines says:

Usage:

     grid.lines(x = unit(c(0, 1), "npc", units.per.obs),
            y = unit(c(0, 1), "npc", units.per.obs), 
            default.units = "npc", units.per.obs = FALSE,
                            ^^^^^
            gp=gpar(), draw = TRUE, vp = NULL)

Nothing you have said seems to contradict this. If you want grid.lines to use 
the native coordinate system, use 'default.units = "native"'

Deepayan




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