These functions create and draw line segments.
grid.segments(x0 = unit(0, "npc"), y0 = unit(0, "npc"),
x1 = unit(1, "npc"), y1 = unit(1, "npc"),
default.units = "npc",
arrow = NULL,
name = NULL, gp = gpar(), draw = TRUE, vp = NULL)
segmentsGrob(x0 = unit(0, "npc"), y0 = unit(0, "npc"),
x1 = unit(1, "npc"), y1 = unit(1, "npc"),
default.units = "npc",
arrow = NULL, name = NULL, gp = gpar(), vp = NULL)
Numeric indicating the starting x-values of the line segments.
Numeric indicating the starting y-values of the line segments.
Numeric indicating the stopping x-values of the line segments.
Numeric indicating the stopping y-values of the line segments.
A string.
A list describing arrow heads to place at either end
of the line segments, as produced by the arrow
function.
A character identifier.
An object of class gpar
.
A logical value indicating whether graphics output should be produced.
A Grid viewport object (or NULL).
A segments grob. grid.segments
returns the value invisibly.
Both functions create a segments grob (a graphical object describing
segments), but only grid.segments
draws the segments (and then only if draw
is TRUE
).