Draw a Rectangle
Usage
rect(xleft, ybottom, xright, ytop,
col=NULL, border=par("fg"), lty=NULL, xpd=FALSE)
Arguments
xleft
|
a vector (or scalar) of left x positions.
|
ybottom
|
a vector (or scalar) of bottom y positions.
|
xright
|
a vector (or scalar) of right x positions.
|
ytop
|
a vector (or scalar) of top y positions.
|
col
|
color(s) to fill the rectangle(s) with.
|
border
|
color for rectangle border(s).
|
lty
|
line type for borders; defaults to "solid".
|
xpd
|
logical (``expand''); if FLASE, everything is
clipped to the plot region.
|
Description
rect draws a rectangle (or sequence of rectangles) with the
given coordinates. It is a primitive function used in
hist. The value supplied, i.e., xleft, ...,
are relative to the current plotting region. If the x-axis goes from
100 to 200 then xleft must be larger than 100 and xright
must be less than 200.See Also
box for the ``standard'' box around the plot;
polygon and segments for flexible line
drawing.Examples
## set up the plot region:
plot(c(100, 250), c(300, 450), type = "n",
main = "11 rectangles using `rect(120+i,300+i, 177+i,380+i)'")
i <- 4*(0:10)
## draw rectangles with bottom left (120, 300)+i and top right (177, 380)+i
rect(120+i, 300+i, 177+i, 380+i, col=rainbow(11, start=.7,end=.1))