| grid.move.to {grid} | R Documentation |
Move or Draw to a Specified Position
Description
Grid has the notion of a current location. These functions sets that location.
Usage
grid.move.to(x = 0, y = 0, default.units = "npc", name = NULL,
draw = TRUE, vp = NULL)
moveToGrob(x = 0, y = 0, default.units = "npc", name = NULL,
vp = NULL)
grid.line.to(x = 1, y = 1, default.units = "npc",
arrow = NULL, name = NULL,
gp = gpar(), draw = TRUE, vp = NULL)
lineToGrob(x = 1, y = 1, default.units = "npc", arrow = NULL,
name = NULL, gp = gpar(), vp = NULL)
Arguments
x |
A numeric value or a unit object specifying an x-value. |
y |
A numeric value or a unit object specifying a y-value. |
default.units |
A string indicating the default units to use
if |
arrow |
A list describing arrow heads to place at either end
of the line, as produced by the |
name |
A character identifier. |
draw |
A logical value indicating whether graphics output should be produced. |
gp |
An object of class |
vp |
A Grid viewport object (or NULL). |
Details
Both functions create a move.to/line.to grob (a graphical object describing a
move-to/line-to), but only grid.move.to/line.to()
draws the move.to/line.to (and then only if draw is TRUE).
Value
A move.to/line.to grob.
grid.move.to/line.to() returns the value invisibly.
Author(s)
Paul Murrell
See Also
Examples
grid.newpage()
grid.move.to(0.5, 0.5)
grid.line.to(1, 1)
grid.line.to(0.5, 0)
pushViewport(viewport(x=0, y=0, width=0.25, height=0.25, just=c("left", "bottom")))
grid.rect()
grid.grill()
grid.line.to(0.5, 0.5)
popViewport()