| bentarrow {diagram} | R Documentation |
Connects two points with 2 segments (default = horizontal-vertical) and adds an arrowhead on (one of) the segments and at a certain distance.
bentarrow(from, to, lwd=2, lty=1, lcol="black", arr.side=2, arr.pos=0.5, path="H", ...)
from |
coordinates (x,y) of the point *from* which to draw arrow. |
to |
coordinates (x,y) of the point *to* which to draw arrow. |
lwd |
line width. |
lty |
line type. |
lcol |
line color. |
arr.side |
segment number on which arrowhead is drawn (1,2). |
arr.pos |
relative position of arrowhead on segment on which arrowhead is drawn. |
path |
first segment to be drawn (V=Vertical, H=Horizontal). |
... |
other arguments passed to function straightarrow. |
a two-segmented arrow is drawn between two points '(from, to)'
how the segments are drawn is set with path which can take on
the values:
The segment(s) on which the arrow head is drawn is set with arr.side,
which is one or more values in (1, 2)
The position of the arrowhead on the segment on which it is drawn,
is set with arr.pos, a value between 0(start of segment) and 1
(end of segment).
The type of the arrowhead is set with arr.type which can take the
values:
see Arrowhead from package shape for details on
arrow head.
coordinates (x,y) where arrowhead is drawn
Karline Soetaert <k.soetaert@nioo.knaw.nl>
straightarrow, segmentarrow,
curvedarrow,
selfarrow, treearrow, splitarrow,
arrows: the comparable R function,
Arrows: more complicated arrow function from package
shape.
openplotmat(main="bentarrow")
pos <-cbind(A<-seq(0.1,0.9,by=0.2),rev(A))
text(pos,LETTERS[1:5],cex=2)
for (i in 1:4) bentarrow(from=pos[i,]+c(0.05,0),to=pos[i+1,]+c(0,0.05),
arr.pos=1,arr.adj=1)
for (i in 1:2) bentarrow(from=pos[i,]+c(0.05,0),to=pos[i+1,]+c(0,0.05),
arr.pos=0.5,path="V",lcol="lightblue")
bentarrow(from=pos[3,]+c(0.05,0),to=pos[4,]+c(0,0.05),arr.pos=0.7,
arr.side=1,path="V",lcol="darkblue")
bentarrow(from=pos[4,]+c(0.05,0),to=pos[5,]+c(0,0.05),arr.pos=0.7,
arr.side=1:2,path="V",lcol="blue")